C05F
Organic fertilisers not covered by subclasses c05b, c05c
Official title: Organic fertilisers not covered by subclasses c05b, c05c, e.g. fertilisers from waste or refuse
C05F (Organic fertilisers not covered by subclasses c05b, c05c) appears on 3,297 US grants and 3,841 published applications in this corpus.
Search patents in C05F- Granted patents
- 3,297
- Published applications
- 3,841
- Assignees
- 2,296
- Inventors
- 7,698
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 28 | 0 |
| 1977 | 25 | 0 |
| 1978 | 28 | 0 |
| 1979 | 28 | 0 |
| 1980 | 40 | 0 |
| 1981 | 27 | 0 |
| 1982 | 26 | 0 |
| 1983 | 26 | 0 |
| 1984 | 17 | 0 |
| 1985 | 23 | 0 |
| 1986 | 17 | 0 |
| 1987 | 21 | 0 |
| 1988 | 22 | 0 |
| 1989 | 31 | 0 |
| 1990 | 28 | 0 |
| 1991 | 43 | 0 |
| 1992 | 46 | 0 |
| 1993 | 58 | 0 |
| 1994 | 54 | 0 |
| 1995 | 66 | 0 |
| 1996 | 70 | 0 |
| 1997 | 74 | 0 |
| 1998 | 84 | 0 |
| 1999 | 65 | 0 |
| 2000 | 58 | 0 |
| 2001 | 71 | 15 |
| 2002 | 99 | 85 |
| 2003 | 76 | 97 |
| 2004 | 53 | 99 |
| 2005 | 42 | 90 |
| 2006 | 48 | 86 |
| 2007 | 37 | 87 |
| 2008 | 30 | 114 |
| 2009 | 45 | 94 |
| 2010 | 61 | 109 |
| 2011 | 64 | 111 |
| 2012 | 70 | 122 |
| 2013 | 79 | 129 |
| 2014 | 82 | 166 |
| 2015 | 101 | 173 |
| 2016 | 108 | 186 |
| 2017 | 89 | 188 |
| 2018 | 112 | 195 |
| 2019 | 152 | 201 |
| 2020 | 152 | 218 |
| 2021 | 141 | 231 |
| 2022 | 113 | 214 |
| 2023 | 127 | 227 |
| 2024 | 124 | 246 |
| 2025 | 139 | 226 |
| 2026 | 77 | 132 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Main groups
Granted patents with any code in the group
- C05F 11/00Organic fertilisers not covered by subclasses c05b, c05c: other organic fertilisers1,431
- C05F 17/00Preparation of fertilisers characterised by biological or biochemical treatment steps1,285
- C05F 3/00Fertilisers from human or animal excrements585
- C05F 7/00Fertilisers from waste water, sewage sludge, sea slime, ooze or similar masses340
- C05F 5/00Fertilisers from distillery wastes, molasses, vinasses, sugar plant or similar wastes or319
- C05F 9/00Fertilisers from household or town refuse310
- C05F 1/00Fertilisers made from animal corpses, or parts thereof147
Recent patents
- Method for producing a soil conditioning agent6 Oct 2026US 12,753,129 B2CCm Technologies Limited
- Freeze concentration for urine-based fertilizer production29 Sep 2026US 12,747,194 B2The Regents of the University of Michigan
- Emulsion in water for preventing and treating yellow shoot of citrus fruit tree, preparation method and application method22 Sep 2026US 12,741,915 B2Zhuhai Runnong Science and Technology Co. Ltd
- Method for rapidly increasing organic matter in saline-alkali land by combining planting and breeding15 Sep 2026US 12,733,569 B1National Center of Technology Innovation for Comprehensive Utilization of Saline-Alkali Land
- Use of polyamines, tyramine and/or a plant extract containing same to stabilise microorganisms15 Sep 2026US 12,735,366 B2Agro Innovation International
- Method for reducing nitrogen and phosphorus emission in strawberry cultivation to mitigate continuous cropping obstacles in greenhouse8 Oct 2026US 2026/0305524 A1Shandong Academy of Agricultural Sciences
- Oxidized cellulosic materials and method of manufacturing same8 Oct 2026US 2026/0308078 A1The Research Foundation for The State University of New York
- Natural organic reduction system8 Oct 2026US 2026/0308079 A1Earth Funeral Group, Inc.
- Increasing carbon storage capacity and pollutant remediation in soils using applied hydrogel methods1 Oct 2026US 2026/0296986 A1University of Washington
- Compositions and Methods for Coating of Nitrification Inhibitors with a Solution Containing a High Concentration of Urease Inhibitors and For Improved Retention of the Nitrogen Content of Soil Through the Administration of Liquid Delivery Formulations of (Aminomethylene)Phosphinic Acids and/or their Salts1 Oct 2026US 2026/0296987 A1Soilgenic Technologies, LLC
Most cited
By later US patents
- Use of automotive diagnostics console to diagnose vehicle225US 7,376,497 B2Innova Electronics Corporation · 2008
- Viscoelastic surfactant fluids and related methods of use217US 6,258,859 B1Rhodia Inc. · 2001
- Viscoelastic surfactant fluids and related methods of use173US 6,703,352 B2Schlumberger Technology Corporation · 2004
- Anaerobic digester system158US 6,299,774 B12001
- Biochar157US 8,361,186 B1Full Circle Biochar, Inc. · 2013