Topic leaderboard
Nitrogenous fertilisers
Ranked by the PatentIndex Score — a 1–99 percentile within C05C · public-visibility date · generated 2026
top 25 per window · public-visibility date
Rising· last 2 yrs
Inventors whose newest C05C patents became public in the last 2 years — the current frontier
- 199Alvin Tamsir8 patents · 121 citations
- 296Emily Tung7 patents · 121 citations
- 392Karsten Temme8 patents · 121 citations
- 488Rosemary Clark8 patents · 121 citations
- 583Sarah Bloch8 patents · 121 citations
- 679Gary David Mcknight53 patents · 289 citations
- 775Wei Xu24 patents · 197 citations
- 871David Bruce Parker18 patents · 155 citations
- 967Randall Linwood Rayborn39 patents · 167 citations
- 1063Raymond Patrick Perkins8 patents · 79 citations
- 1158Zehui Yang8 patents · 79 citations
- 1254Deborah L. Miller14 patents · 145 citations
- 1350John C. Miller14 patents · 145 citations
- 1446Andrew Semple7 patents · 68 citations
- 1542Timothy G. Holt13 patents · 84 citations
- 1638Alexander Wissemeier20 patents · 129 citations
- 1733Michael Mclaughlin12 patents · 40 citations
- 1829Andrew George Kells6 patents · 24 citations
- 1925Mohamed Akasha M. Khaleel8 patents · 24 citations
- 2021Jozefien Degryse11 patents · 24 citations
- 2117Roslyn Baird11 patents · 24 citations
- 2213Rodrigo Coqui Da Silva11 patents · 24 citations
- 238Keith D. Cochran10 patents · 35 citations
- 244Harri Tapio Kiiski6 patents · 20 citations
- 251Barbara Nave14 patents · 23 citations
Active· last 5 yrs
Sustained C05C output across the last 5 years
- 199Kurt D. Gabrielson22 patents · 384 citations
- 296Jeffrey C. Burnham23 patents · 407 citations
- 392Stacey L. Wertz13 patents · 246 citations
- 488Alvin Tamsir8 patents · 121 citations
- 583Emily Tung7 patents · 121 citations
- 679Karsten Temme8 patents · 121 citations
- 775Rosemary Clark8 patents · 121 citations
- 871Sarah Bloch8 patents · 121 citations
- 967Gary David Mcknight53 patents · 289 citations
- 1063Wei Xu24 patents · 197 citations
- 1158David Bruce Parker18 patents · 155 citations
- 1254Ray Perkins11 patents · 87 citations
- 1350Yang Zehni11 patents · 87 citations
- 1446Arthur R. Shirley, Jr.19 patents · 156 citations
- 1542Han Suk Kim15 patents · 157 citations
- 1638Richard Wilson Belcher16 patents · 157 citations
- 1733Randall Linwood Rayborn39 patents · 167 citations
- 1829Raymond Patrick Perkins8 patents · 79 citations
- 1925Zehui Yang8 patents · 79 citations
- 2021Ranko Panayotov Bontchev10 patents · 117 citations
- 2117Richard Hartmann, Jr.8 patents · 102 citations
- 2213Deborah L. Miller14 patents · 145 citations
- 238John C. Miller14 patents · 145 citations
- 244Andrew Semple7 patents · 68 citations
- 251Brian Buege10 patents · 83 citations
All-time canon
Career PatentIndex Score in C05C
- 199Kurt D. Gabrielson22 patents · 384 citations
- 296William P. Moore17 patents · 667 citations
- 392Allen R. Sutton16 patents · 528 citations
- 488John H. Detrick7 patents · 300 citations
- 583Donald C. Young37 patents · 873 citations
- 679Harvey M. Goertz9 patents · 419 citations
- 775Jeffrey C. Burnham23 patents · 407 citations
- 871Stacey L. Wertz13 patents · 246 citations
- 967Willis Thornsberry7 patents · 454 citations
- 1063David Shearer6 patents · 351 citations
- 1158John Gaunt6 patents · 351 citations
- 1254Alvin Tamsir8 patents · 121 citations
- 1350Emily Tung7 patents · 121 citations
- 1446Karsten Temme8 patents · 121 citations
- 1542Rosemary Clark8 patents · 121 citations
- 1638Sarah Bloch8 patents · 121 citations
- 1733Lawrence Alan Peacock7 patents · 371 citations
- 1829Willy H. P. Van Hijfte8 patents · 290 citations
- 1925Gary David Mcknight53 patents · 289 citations
- 2021Wei Xu24 patents · 197 citations
- 2117David Bruce Parker18 patents · 155 citations
- 2213Rafael A. J. Goethals5 patents · 241 citations
- 238Gary L. Dahms9 patents · 158 citations
- 244Ray Perkins11 patents · 87 citations
- 251Yang Zehni11 patents · 87 citations
Rising· last 2 yrs
The top-scoring C05C patents made public in the last 2 years
- 199US12221395B1✦ AIMethod of increasing irrigation water and fertilizer delivery to soil using formic acid an3 cites · 202580% earned
- 296US11970427B2✦ AIMicroelement amino acid chelate-urea formaldehyde slow-release fertilizer and method for p2 cites · 202476% earned
- 392US12344568B2✦ AICompositions and methods comprising nitrification inhibitors containing a mixture of proti1 cites · 202442% earned
- 488US11999669B1Nitrogen activator stabilizer for reducing and protecting nitrogen fertilizer1 cites · 202467% earned
- 583US12006272B1Nitrogen activator stabilizer for reducing and protecting nitrogen fertilizer1 cites · 202467% earned
- 679US12382854B1Straw returning method through thawing and wet puddling for saline-sodic paddy fields and 1 cites · 202567% earned
- 775US12037299B1Method for preparing small-molecule organic water-soluble fertilizer using biomass and its1 cites · 202467% earned
- 871US12497342B2Methods and compositions for improving plant traits0 cites · 20240% earned
- 967US12171223B2Non-aqueous organo liquid delivery systems containing dispersed poly (organic acids) that 0 cites · 20240% earned
- 1063US12030826B2Efficiency of man-made and/or natural organic based animal manure fertilizers by liberatin0 cites · 20240% earned
- 1158US12551846B2Membrane system to treat leachate and methods of treating leachate0 cites · 20240% earned
- 1254US12319632B2Calcium sulfate urea granules and methods for producing and using the same0 cites · 20240% earned
- 1350US12415767B2Non-aqueous organo liquid delivery systems containing dispersed organo polycarboxylate fun0 cites · 20240% earned
- 1446USRE50128ESystem and method for production of granular ammonium sulfate0 cites · 20240% earned
- 1542US12497341B2Reaction methods for producing nitrogenous phosphoryl compounds that are in situ fluid com0 cites · 20250% earned
- 1638US12365639B2Nitrification inhibitors to improve fertilizer efficiency0 cites · 20240% earned
- 1733US12195408B2Compositions for increasing nitrogen sources life span in plant growth mediums and methods0 cites · 20240% earned
- 1829US12559442B2Use of N-functionalized alkoxy pyrazole compounds as nitrification inhibitors0 cites · 20240% earned
- 1925US12325673B2Hydrophobic coatings to improve the physical quality parameters of fertilizers0 cites · 20240% earned
- 2021US12209042B2System and method for recovering nutrients from a high nitrogenous liquid waste0 cites · 20240% earned
- 2117US12264114B2Rock fines as carriers of plant nutrients0 cites · 20240% earned
- 2213US12338189B2Desensitized fertilizer compositions and methods of making same0 cites · 20240% earned
- 238US12435011B2Compositions for increasing nitrogen sources life span in plant growth mediums and methods0 cites · 20250% earned
- 244US12484580B2Use of alkoxypyrazoles as nitrification inhibitors0 cites · 20250% earned
- 251US12172938B1Composite coating for seed having plurality of coating layers extending around the seed0 cites · 20240% earned
Active· last 5 yrs
The top-scoring C05C patents of the last 5 years
- 199US11426350B1✦ AIReducing the environmental impact of farming using biochar19 cites · 202281% earned
- 296US11739032B2✦ AIMethods and compositions for improving plant traits10 cites · 202170% earned
- 392US10995271B1✦ AIBioorganic soil conditioner9 cites · 202187% earned
- 488US11802096B2Calcium sulfate urea granules and methods for producing and using the same5 cites · 202267% earned
- 583US11124462B1Compositions and their use in agricultural applications8 cites · 202180% earned
- 679US12221395B1Method of increasing irrigation water and fertilizer delivery to soil using formic acid an3 cites · 202580% earned
- 775US11312666B2Mineral solubilizing microorganism infused biochars5 cites · 202177% earned
- 871US11192830B2Seed coating to promote plant growth and method of increasing plant yield4 cites · 202175% earned
- 967US11465948B2Autonomous device for in-field conversion of biomass into biochar4 cites · 202175% earned
- 1063US12098109B2Reaction methods for producing nitrogenous phosphoryl compounds that are in situ fluid com3 cites · 202367% earned
- 1158US11858839B2System and method for recovering nutrients from a high nitrogenous liquid waste3 cites · 202367% earned
- 1254US11981611B2Nitrification inhibitors to improve fertilizer efficiency3 cites · 202380% earned
- 1350US11390570B1Humic acid-supplemented fertilizers, macronutrients, and micronutrients5 cites · 202284% earned
- 1446US11970427B2Microelement amino acid chelate-urea formaldehyde slow-release fertilizer and method for p2 cites · 202476% earned
- 1542US11919827B2System and method for producing an organic fertilizer from waste gases or liquids3 cites · 202180% earned
- 1638US11427513B2Growth media for improved growth and yield of fungus using treated lignocellulosic biomass4 cites · 202175% earned
- 1733US11639318B2Organic liquid fertilizer3 cites · 202156% earned
- 1829US12017968B2Compositions and methods comprising nitrification inhibitors containing a mixture of proti2 cites · 202253% earned
- 1925US11970428B2Nitrification inhibitors to improve fertilizer efficiency2 cites · 202361% earned
- 2021US11987536B2Rock fines as carriers of plant nutrients2 cites · 202361% earned
- 2117US11987535B2Urea granules comprising lignosulfonate coating2 cites · 202267% earned
- 2213US11124461B2Fertilizer3 cites · 202172% earned
- 238US11999664B2Processes and systems for producing ammonia products and/or calcium carbonate products3 cites · 202172% earned
- 244US12187660B2Compositions for increasing nitrogen sources life span in plant growth mediums and methods2 cites · 202376% earned
- 251US11999669B1Nitrogen activator stabilizer for reducing and protecting nitrogen fertilizer1 cites · 202467% earned
All-time canon
The defining C05C patents of the whole record
- 199US4469648A✦ AIProcess for preparing spheroidally shaped products, solid at room temperature442 cites · 198495% earned
- 296US8361186B1✦ AIBiochar218 cites · 201386% earned
- 392US5352265A✦ AIGranular urea-based fertilizer189 cites · 199494% earned
- 488US5504055AMetal amino acid chelate149 cites · 199694% earned
- 583US4219589AProcess for urea granulation146 cites · 198094% earned
- 679US5698003AFormulation for fertilizer additive concentrate134 cites · 199793% earned
- 775US6447437B1Method for reducing CO2, CO, NOX, and SOx emissions132 cites · 200293% earned
- 871US4711659AAttrition resistant controlled release fertilizers126 cites · 198793% earned
- 967US3991225AMethod for applying coatings to solid particles119 cites · 197693% earned
- 1063US5939356AControlled release coated agricultural products116 cites · 199993% earned
- 1158US6228806B1Biochemical fertilizer composition111 cites · 200193% earned
- 1254US4057512AAlkali metal catalyst recovery system106 cites · 197793% earned
- 1350US5364438AFluid urea-containing fertilizer104 cites · 199493% earned
- 1446US4804403AAttrition-resistant, controlled release fertilizers103 cites · 198993% earned
- 1542US5645756AHardness suppression in urea solutions102 cites · 199789% earned
- 1638US4042366AControlled release fertilizer92 cites · 197793% earned
- 1733US6749659B1Controlled release rate fertilizers and methods of making same92 cites · 200493% earned
- 1829US4330319AManufacture of urea sulfur fertilizer87 cites · 198293% earned
- 1925US4010897AMethod and apparatus for home production and application of nitrogen fertilizer82 cites · 197793% earned
- 2021US5132025AOil well drilling mud and brine recycling system81 cites · 199293% earned
- 2117US6471741B1Liquid soil enrichment microbial compositions79 cites · 200293% earned
- 2213US5917110AMoisture-resistant calcium containing particles75 cites · 199989% earned
- 238US4082533ACoated controlled-release product74 cites · 197893% earned
- 244US5057141ACompositions for biological control of plant pathogenic nematodes73 cites · 199193% earned
- 251US4445925AMethods of producing concentrated urea-sulfuric acid reaction products73 cites · 198493% earned
Rising· last 2 yrs
Assignees whose newest C05C patents became public in the last 2 years — the current frontier
- 199PIVOT BIO INC8 patents · 121 citations
- 296MILLER JOHN C13 patents · 145 citations
- 392MOSAIC CO13 patents · 26 citations
- 488SOILGENIC TECH LLC24 patents · 21 citations
- 583BASF SE24 patents · 29 citations
- 679STAMICARBON20 patents · 22 citations
- 775UNIV FLORIDA5 patents · 15 citations
- 871Nuorganics LLC6 patents · 14 citations
- 967UNIV NORTH CHINA7 patents · 5 citations
- 1063PCI NITROGEN LLC3 patents · 4 citations
- 1158CENTRAL GARDEN & PET CO3 patents · 2 citations
- 1254SPECIALTY GRANULES INVEST LLC2 patents · 2 citations
- 1350SABIC AGRI NUTRIENTS COMPANY7 patents · 0 citations
- 1446UNIV KING FAISAL3 patents · 2 citations
- 1542DEFUSE TECH LLC2 patents · 0 citations
- 1638KB8 INC2 patents · 0 citations
- 1733UNIV MICHIGAN REGENTS2 patents · 0 citations
- 1829LIU WENZHI1 patents · 1 citations
- 1925NORTHEAST INST GEO & AGROECOLO1 patents · 1 citations
- 2021THG LLC2 patents · 0 citations
- 2117SHANDONG ACAD AGRICULTURAL SCIENCES2 patents · 0 citations
- 2213TOBACCO RES INSTITUTE OF HUBEI PROVINCE2 patents · 0 citations
- 238DEERPOINT GROUP INC1 patents · 0 citations
- 244GROWERS SECRET INC1 patents · 0 citations
- 251INST APPLIED ECOLOGY CAS1 patents · 0 citations
Active· last 5 yrs
Sustained C05C output across the last 5 years
- 199PIVOT BIO INC8 patents · 121 citations
- 296KOCH AGRONOMIC SERVICES LLC27 patents · 143 citations
- 392WORLD SOURCE ENTPR LLC17 patents · 121 citations
- 488MILLER JOHN C13 patents · 145 citations
- 583WINFIELD SOLUTIONS LLC6 patents · 44 citations
- 679SABIC GLOBAL TECHNOLOGIES BV23 patents · 35 citations
- 775CARBON TECH HOLDINGS LLC7 patents · 45 citations
- 871STOLLER ETS5 patents · 41 citations
- 967RHODIA OPERATIONS13 patents · 32 citations
- 1063MOSAIC CO13 patents · 26 citations
- 1158ARCHER DANIELS MIDLAND CO5 patents · 74 citations
- 1254SOILGENIC TECH LLC24 patents · 21 citations
- 1350BASF SE24 patents · 29 citations
- 1446STAMICARBON20 patents · 22 citations
- 1542UNIV FLORIDA5 patents · 15 citations
- 1638YARA INT ASA35 patents · 28 citations
- 1733ANUVIA PLANT NUTRIENTS CORP4 patents · 28 citations
- 1829Nuorganics LLC6 patents · 14 citations
- 1925SPOGEN BIOTECH INC3 patents · 12 citations
- 2021FERTILIZERS & CHEMICALS LTD3 patents · 56 citations
- 2117OMS INVEST INC11 patents · 6 citations
- 2213BI EN CORP4 patents · 17 citations
- 238CASALE SA6 patents · 8 citations
- 244INNOVATIONS FOR WORLD NUTRITION LLC6 patents · 6 citations
- 251FLUID ENERGY GROUP LTD4 patents · 7 citations
All-time canon
All-time PatentIndex Score in C05C
- 199GEORGIA PACIFIC RESINS8 patents · 322 citations
- 296SCOTT & SONS CO O M12 patents · 526 citations
- 392UNION OIL CO43 patents · 983 citations
- 488TENNESSEE VALLEY AUTHORITY18 patents · 490 citations
- 583RLC TECHNOLOGIES LLC5 patents · 226 citations
- 679VITAG CORP7 patents · 168 citations
- 775PIVOT BIO INC8 patents · 121 citations
- 871BURNHAM JEFFREY C9 patents · 165 citations
- 967MELAMINE CHEMICALS INC9 patents · 273 citations
- 1063FREEPORT MCMORAN RESOURCE4 patents · 390 citations
- 1158AZOTE SA CIE NEERLANDAISE8 patents · 267 citations
- 1254MCKNIGHT GARY DAVID9 patents · 120 citations
- 1350OMS INVESTMENTS INC5 patents · 204 citations
- 1446TOYO ENGINEERING CORP7 patents · 133 citations
- 1542KOCH AGRONOMIC SERVICES LLC27 patents · 143 citations
- 1638COOL PLANET ENERGY SYSTEMS INC8 patents · 111 citations
- 1733WORLD SOURCE ENTPR LLC17 patents · 121 citations
- 1829FULL CIRCLE BIOCHAR INC5 patents · 280 citations
- 1925STANDARD OIL CO INDIANA5 patents · 97 citations
- 2021MILLER JOHN C13 patents · 145 citations
- 2117SUEDDEUTSCHE KALKSTICKSTOFF7 patents · 110 citations
- 2213ALLIED CHEM6 patents · 84 citations
- 238UNIE VAN KUNSTMESTFAB BV4 patents · 139 citations
- 244AGRIUM INC4 patents · 151 citations
- 251NORSK HYDRO AS7 patents · 79 citations
90–99 field-defining50–89 strong<50 emergingearned by citationsfrom family breadth