CN108314487A - A kind of preparation method of composite biological fertilizer for soil remediation - Google Patents

A kind of preparation method of composite biological fertilizer for soil remediation Download PDF

Info

Publication number
CN108314487A
CN108314487A CN201810303696.3A CN201810303696A CN108314487A CN 108314487 A CN108314487 A CN 108314487A CN 201810303696 A CN201810303696 A CN 201810303696A CN 108314487 A CN108314487 A CN 108314487A
Authority
CN
China
Prior art keywords
parts
compost
soil
bacterial agent
microbial bacterial
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810303696.3A
Other languages
Chinese (zh)
Inventor
蔡敏新
蔡春梅
蔡金新
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GUANGDONG FENGKANG BIOTECHNOLOGY Co Ltd
Original Assignee
GUANGDONG FENGKANG BIOTECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GUANGDONG FENGKANG BIOTECHNOLOGY Co Ltd filed Critical GUANGDONG FENGKANG BIOTECHNOLOGY Co Ltd
Priority to CN201810303696.3A priority Critical patent/CN108314487A/en
Publication of CN108314487A publication Critical patent/CN108314487A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
    • C05D9/00—Other inorganic fertilisers
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
    • C05G3/80—Soil conditioners
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Pest Control & Pesticides (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Soil Sciences (AREA)
  • Biochemistry (AREA)
  • Biotechnology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Microbiology (AREA)
  • Molecular Biology (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)
  • Fertilizers (AREA)

Abstract

The invention discloses a kind of preparation methods of the composite biological fertilizer for soil remediation, and steps are as follows：Microbial bacterial agent, flyash are uniformly sprinkled into excrement of animals, compost treatment 46 months；Bean powder, the wooden chaff, rice husk, chitosan, humic acid are added when compost mid-term；After compost, excrement is dried.Microbial bacterial agent includes bacillus licheniformis, brewer's yeast, pseudomonad, Alcaligenes.The advantage of the invention is that：Compost fermentation can be such that harmful bacteria in organic fertilizer inactivates, compost mid-term addition humic acid can provide minerals for microorganism and trace element is supported to grow needs, organic fertilizer and multiple-microorganism make the soil organism increase, microorganism can make looseness of soil, gas permeability and water-retaining property are improved, the ecological balance of edaphon, while the common improvement soil environment of multiple-microorganism growth are restored, keep soil ecology more and more diversified, decomposes the chemical salt of excessive application chemistry fertilizer deposition for many years.

Description

A kind of preparation method of composite biological fertilizer for soil remediation
Technical field
The present invention relates to a kind of preparation methods of the composite biological fertilizer for soil remediation.
Background technology
The development of fertilizer industry is the prodigious income of agricultural belt really, meets the inaccessiable need of conventional tillage fertilising It asks.Only soil is set gradually to change depending on unduly for chemical fertilizer, stiff piece of table local products are commonly called as hardened, gas permeability and water conservation Property be deteriorated, agricultural production amount becomes negatively affected.
Invention content
The purpose of the present invention is to provide a kind of preparation methods of the composite biological fertilizer for soil remediation, to solve soil The problem of gas permeability and water-retaining property are deteriorated.
The present invention adopts the following technical scheme that in order to achieve the above object：
A kind of preparation method of composite biological fertilizer for soil remediation, steps are as follows：
(1) microbial bacterial agent, flyash are uniformly sprinkled into excrement of animals, compost treatment 4-6 months；
(2) bean powder, the wooden chaff, rice husk, chitosan, humic acid are added when compost mid-term；
(3) after compost, excrement is dried.
Further, based on parts by volume, each Ingredient Amount is as follows：2-10 parts of microbial bacterial agent, 3-8 parts of flyash, bean powder 20-30 parts, wooden chaff 20-40 parts, 25-30 parts of rice husk, 15-20 parts of chitosan, 10-25 parts of humic acid.
Further, the microbial bacterial agent includes bacillus licheniformis, brewer's yeast, pseudomonad, Alcaligenes.
Further, the bacillus licheniformis, brewer's yeast, pseudomonad, Alcaligenes weight ratio be 2:3:2: 5。
The advantage of the invention is that：Compost fermentation can be such that harmful bacteria in organic fertilizer inactivates, and compost mid-term adds humic acid energy Enough minerals being provided for microorganism and trace element being supported to grow needs, organic fertilizer and multiple-microorganism make the soil organism increase Add, microorganism can make looseness of soil, improve gas permeability and water-retaining property, restore the ecological balance of edaphon, while a variety of micro- Biological growth improves soil environment jointly, keeps soil ecology more and more diversified, decomposes the chemical fertilizer deposition of excessive application for many years Chemical salt.
Specific implementation mode
Below in conjunction with specific embodiment, the present invention will be described in detail, herein with the illustrative examples and explanation of the present invention For explaining the present invention, but it is not as a limitation of the invention.
Embodiment one
A kind of preparation method of composite biological fertilizer for soil remediation, steps are as follows：
(1) microbial bacterial agent, flyash are uniformly sprinkled into excrement of animals, compost treatment 6 months；
(2) bean powder, the wooden chaff, rice husk, chitosan, humic acid are added when compost mid-term；
(3) after compost, excrement is dried.
Based on parts by volume, each Ingredient Amount is as follows：10 parts of microbial bacterial agent, 8 parts of flyash, 20 parts of bean powder, 20 parts of the wooden chaff, 25 parts of rice husk, 20 parts of chitosan, 25 parts of humic acid.
The microbial bacterial agent includes bacillus licheniformis, brewer's yeast, pseudomonad, Alcaligenes.
The bacillus licheniformis, brewer's yeast, pseudomonad, Alcaligenes weight ratio be 2:3:2:5.
Embodiment two
A kind of preparation method of composite biological fertilizer for soil remediation, steps are as follows：
(1) microbial bacterial agent, flyash are uniformly sprinkled into excrement of animals, compost treatment 6 months；
(2) bean powder, the wooden chaff, rice husk, chitosan, humic acid are added when compost mid-term；
(3) after compost, excrement is dried.
Based on parts by volume, each Ingredient Amount is as follows：6 parts of microbial bacterial agent, 8 parts of flyash, 20 parts of bean powder, 20 parts of the wooden chaff, 30 parts of rice husk, 20 parts of chitosan, 25 parts of humic acid.
The microbial bacterial agent includes bacillus licheniformis, brewer's yeast, pseudomonad, Alcaligenes.
The bacillus licheniformis, brewer's yeast, pseudomonad, Alcaligenes weight ratio be 2:3:2:5.
Embodiment three
A kind of preparation method of composite biological fertilizer for soil remediation, steps are as follows：
(1) microbial bacterial agent, flyash are uniformly sprinkled into excrement of animals, compost treatment 6 months；
(2) bean powder, the wooden chaff, rice husk, chitosan, humic acid are added when compost mid-term；
(3) after compost, excrement is dried.
Based on parts by volume, each Ingredient Amount is as follows：8 parts of microbial bacterial agent, 8 parts of flyash, 20 parts of bean powder, 40 parts of the wooden chaff, 30 parts of rice husk, 15 parts of chitosan, 25 parts of humic acid.
The microbial bacterial agent includes bacillus licheniformis, brewer's yeast, pseudomonad, Alcaligenes.
The bacillus licheniformis, brewer's yeast, pseudomonad, Alcaligenes weight ratio be 2:3:2:5.
It is provided for the embodiments of the invention technical solution above to be described in detail, specific case used herein The principle and embodiment of the embodiment of the present invention are expounded, the explanation of above example is only applicable to help to understand this The principle of inventive embodiments；Meanwhile for those of ordinary skill in the art, embodiment according to the present invention, in specific embodiment party There will be changes in formula and application range, in conclusion the content of the present specification should not be construed as limiting the invention.

Claims (4)

1. a kind of preparation method of composite biological fertilizer for soil remediation, it is characterised in that：
Steps are as follows：
(1) microbial bacterial agent, flyash are uniformly sprinkled into excrement of animals, compost treatment 4-6 months；
(2) bean powder, the wooden chaff, rice husk, chitosan, humic acid are added when compost mid-term；
(3) after compost, excrement is dried.
2. a kind of preparation method of composite biological fertilizer for soil remediation according to claim 1, it is characterised in that：
Based on parts by volume, each Ingredient Amount is as follows：2-10 parts of microbial bacterial agent, 3-8 parts of flyash, 20-30 parts of bean powder, the wooden chaff 20-40 parts, 25-30 parts of rice husk, 15-20 parts of chitosan, 10-25 parts of humic acid.
3. a kind of preparation method of composite biological fertilizer for soil remediation according to claim 2, it is characterised in that：
The microbial bacterial agent includes bacillus licheniformis, brewer's yeast, pseudomonad, Alcaligenes.
4. a kind of preparation method of composite biological fertilizer for soil remediation according to claim 1, it is characterised in that：
The bacillus licheniformis, brewer's yeast, pseudomonad, Alcaligenes weight ratio be 2:3:2:5.
CN201810303696.3A 2018-04-03 2018-04-03 A kind of preparation method of composite biological fertilizer for soil remediation Pending CN108314487A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810303696.3A CN108314487A (en) 2018-04-03 2018-04-03 A kind of preparation method of composite biological fertilizer for soil remediation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810303696.3A CN108314487A (en) 2018-04-03 2018-04-03 A kind of preparation method of composite biological fertilizer for soil remediation

Publications (1)

Publication Number Publication Date
CN108314487A true CN108314487A (en) 2018-07-24

Family

ID=62896719

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810303696.3A Pending CN108314487A (en) 2018-04-03 2018-04-03 A kind of preparation method of composite biological fertilizer for soil remediation

Country Status (1)

Country Link
CN (1) CN108314487A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109438004A (en) * 2018-11-06 2019-03-08 山东志华农业开发有限公司 A kind of method of straw-returning getting fat in greenhouse

Citations (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103524230A (en) * 2013-10-16 2014-01-22 合肥科友生物科技有限公司 Biological fertilizer special for flowers and preparation method thereof
CN103524249A (en) * 2013-10-30 2014-01-22 安徽万利生态园林景观有限公司 Fruit tree ecological fertilizer and preparation method thereof
CN103626571A (en) * 2013-10-24 2014-03-12 安徽久久肥业有限公司 Organic compound fertilizer and preparation method thereof
CN104163663A (en) * 2014-08-08 2014-11-26 李俊友 Active biological organic fertilizer and preparation method thereof
CN104211504A (en) * 2014-08-27 2014-12-17 武汉瑞泽园生物环保科技有限公司 Compound microorganism environment-friendly fertilizer and preparation method thereof
CN104447053A (en) * 2014-12-20 2015-03-25 菏泽市百花生物科技有限公司 Microbiological organic fertilizer
CN104496577A (en) * 2014-12-25 2015-04-08 刘长生 Composite microbial fertilizer and preparation method thereof
CN104876761A (en) * 2015-05-05 2015-09-02 黄春蓉 Organic biological fertilizer special for codonopsis pilosula
CN104961570A (en) * 2015-06-29 2015-10-07 贵州地宝生物科技有限公司 Chitosan bio-organic fertilizer for fruit trees and preparing method thereof
CN105036851A (en) * 2015-07-13 2015-11-11 甘肃省昕农福农业科技有限责任公司 Special liquid water flush fertilizer for potatoes and preparation method for special liquid water flush fertilizer for potatoes
CN105949006A (en) * 2016-06-04 2016-09-21 山东胜伟园林科技有限公司 Compound fertilizer taking cow dung as main material and production method
CN105993766A (en) * 2016-05-24 2016-10-12 象州县科学技术局 Cultivation method for skiranui tangerine
CN106478288A (en) * 2016-09-18 2017-03-08 广西大学 A kind of soil conditioner of utilization microbial degradation Pesticide Residue in Soil
CN106495874A (en) * 2016-10-25 2017-03-15 黑龙江省农业科学院农村能源研究所 Combined soil renovation agent and preparation method with compost as raw material
CN106542924A (en) * 2016-09-30 2017-03-29 赵青娇 A kind of high efficiency corn compound fertilizer
CN106905079A (en) * 2017-04-14 2017-06-30 肖志月 A kind of living organisms bacterial manure and preparation method thereof
CN107089892A (en) * 2017-06-29 2017-08-25 重庆市万源禽蛋食品有限公司 Chicken manure organic fertilizer and preparation method thereof
CN107365217A (en) * 2017-08-03 2017-11-21 钟山县良丰生态农业有限公司 A kind of sheep manure organic fertilizer and preparation method thereof
CN107382634A (en) * 2017-09-22 2017-11-24 苏州水木康桥环境工程技术有限公司 A kind of environment-friendly long-life soil conditioner and preparation method thereof
CN107445689A (en) * 2017-08-03 2017-12-08 钟山县良丰生态农业有限公司 A kind of cow dung organic fertilizer and preparation method thereof
CN107721747A (en) * 2017-11-13 2018-02-23 潍坊友容实业有限公司 Salt-soda soil microbial organic fertilizer of soil texture and preparation method thereof can quickly be improved
CN107746324A (en) * 2017-10-28 2018-03-02 丁忠良 A kind of formula and its production technology of the organic fertilizer that ferments
CN107759317A (en) * 2017-10-25 2018-03-06 山东胜景旅游发展有限公司 Organic fertilizer is combined the method for administering salt-soda soil with microbial-bacterial fertilizer
CN107840736A (en) * 2017-12-22 2018-03-27 袁梅芳 A kind of gardenia special bio medicine fertilizer and preparation method
CN107879835A (en) * 2017-10-25 2018-04-06 山东胜景旅游发展有限公司 A kind of preparation method for chloride alkaline land improving microbial-bacterial fertilizer

Patent Citations (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103524230A (en) * 2013-10-16 2014-01-22 合肥科友生物科技有限公司 Biological fertilizer special for flowers and preparation method thereof
CN103626571A (en) * 2013-10-24 2014-03-12 安徽久久肥业有限公司 Organic compound fertilizer and preparation method thereof
CN103524249A (en) * 2013-10-30 2014-01-22 安徽万利生态园林景观有限公司 Fruit tree ecological fertilizer and preparation method thereof
CN104163663A (en) * 2014-08-08 2014-11-26 李俊友 Active biological organic fertilizer and preparation method thereof
CN104211504A (en) * 2014-08-27 2014-12-17 武汉瑞泽园生物环保科技有限公司 Compound microorganism environment-friendly fertilizer and preparation method thereof
CN104447053A (en) * 2014-12-20 2015-03-25 菏泽市百花生物科技有限公司 Microbiological organic fertilizer
CN104496577A (en) * 2014-12-25 2015-04-08 刘长生 Composite microbial fertilizer and preparation method thereof
CN104876761A (en) * 2015-05-05 2015-09-02 黄春蓉 Organic biological fertilizer special for codonopsis pilosula
CN104961570A (en) * 2015-06-29 2015-10-07 贵州地宝生物科技有限公司 Chitosan bio-organic fertilizer for fruit trees and preparing method thereof
CN105036851A (en) * 2015-07-13 2015-11-11 甘肃省昕农福农业科技有限责任公司 Special liquid water flush fertilizer for potatoes and preparation method for special liquid water flush fertilizer for potatoes
CN105993766A (en) * 2016-05-24 2016-10-12 象州县科学技术局 Cultivation method for skiranui tangerine
CN105949006A (en) * 2016-06-04 2016-09-21 山东胜伟园林科技有限公司 Compound fertilizer taking cow dung as main material and production method
CN106478288A (en) * 2016-09-18 2017-03-08 广西大学 A kind of soil conditioner of utilization microbial degradation Pesticide Residue in Soil
CN106542924A (en) * 2016-09-30 2017-03-29 赵青娇 A kind of high efficiency corn compound fertilizer
CN106495874A (en) * 2016-10-25 2017-03-15 黑龙江省农业科学院农村能源研究所 Combined soil renovation agent and preparation method with compost as raw material
CN106905079A (en) * 2017-04-14 2017-06-30 肖志月 A kind of living organisms bacterial manure and preparation method thereof
CN107089892A (en) * 2017-06-29 2017-08-25 重庆市万源禽蛋食品有限公司 Chicken manure organic fertilizer and preparation method thereof
CN107365217A (en) * 2017-08-03 2017-11-21 钟山县良丰生态农业有限公司 A kind of sheep manure organic fertilizer and preparation method thereof
CN107445689A (en) * 2017-08-03 2017-12-08 钟山县良丰生态农业有限公司 A kind of cow dung organic fertilizer and preparation method thereof
CN107382634A (en) * 2017-09-22 2017-11-24 苏州水木康桥环境工程技术有限公司 A kind of environment-friendly long-life soil conditioner and preparation method thereof
CN107759317A (en) * 2017-10-25 2018-03-06 山东胜景旅游发展有限公司 Organic fertilizer is combined the method for administering salt-soda soil with microbial-bacterial fertilizer
CN107879835A (en) * 2017-10-25 2018-04-06 山东胜景旅游发展有限公司 A kind of preparation method for chloride alkaline land improving microbial-bacterial fertilizer
CN107746324A (en) * 2017-10-28 2018-03-02 丁忠良 A kind of formula and its production technology of the organic fertilizer that ferments
CN107721747A (en) * 2017-11-13 2018-02-23 潍坊友容实业有限公司 Salt-soda soil microbial organic fertilizer of soil texture and preparation method thereof can quickly be improved
CN107840736A (en) * 2017-12-22 2018-03-27 袁梅芳 A kind of gardenia special bio medicine fertilizer and preparation method

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
周天泽: "《重塑被弃的金字塔：化学如何变废为宝》", 30 April 2012, 周天泽 *
席涛: "《绿色包装设计》", 30 November 2011, 中国电力出版社 *
楼仁兴等: "《不甘落后的煤炭能》", 31 August 2013, 吉林出版集团有限责任公司 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109438004A (en) * 2018-11-06 2019-03-08 山东志华农业开发有限公司 A kind of method of straw-returning getting fat in greenhouse

Similar Documents

Publication Publication Date Title
KR101793137B1 (en) Facility secondary nitrate ion salinized soil modifier, preparation method and modification method
CN102329754B (en) Novel strain of streptomyces fradiae and application thereof
CN105061085B (en) A kind of biology coating organic-inorganic microbial manure and preparation method thereof
CN103992184B (en) A kind of biological organic fertilizer
CN105367335A (en) Biochar-based coast saline-alkali land improvement conditioner and preparation method and application thereof
CN105724438A (en) Functional bactericide for preventing and treating root-knot nematode
CN104072304A (en) Bamboo charcoal compound microbial fertilizer and production method thereof
CN108191574A (en) A kind of complex microorganism multielement coating enhanced fertilizer and its manufacturing method
CN105503391B (en) A kind of prevention and treatment tomato powdery mildew of cucumber function foliar fertilizer and application
CN105884449A (en) Method for producing organic fertilizer by means of monosodium glutamate wastewater and straw fermentation
CN111574283A (en) Microbial fertilizer and preparation method thereof
CN106833664A (en) Soil conditioner and preparation method thereof
CN106190929B (en) A kind of new strain of Bacillus licheniformis and its application
CN106010549A (en) Soil amendment for improving saline-alkali soil
US20180327330A1 (en) Organic Fertilizer for Vegetables and Its Preparation Method
CN104829394A (en) High-efficiency and high-yield fertilizer special for pakchoi
CN108147919A (en) Microorganism seaweed composite fertilizer and preparation method thereof
CN107805159A (en) A kind of slight alkaline land improves special fertilizer
CN108395893A (en) A kind of improvement soil complex micro organism fungicide and preparation method thereof
CN111073831B (en) Compound microbial agent and application thereof
CN108998044A (en) A kind of modifying agent improving saline-alkali soil enzymatic activity
CN103553831B (en) A kind of agricultural biological fertilizer
CN105198512B (en) A kind of method that double-microbial fermentation prepares gamma-polyglutamic acid organic fertilizer
CN109503286A (en) A kind of special peanut organic and inorganic complex fertilizer and preparation method thereof
CN104211496A (en) Organic fertilizer with water retention suitable for cucumber plantation, and its preparation method

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20180724

RJ01 Rejection of invention patent application after publication