C05C
Nitrogenous fertilisers
C05C (Nitrogenous fertilisers) appears on 1,572 US grants and 1,766 published applications in this corpus.
Search patents in C05C- Granted patents
- 1,572
- Published applications
- 1,766
- Assignees
- 910
- Inventors
- 3,181
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 23 | 0 |
| 1977 | 25 | 0 |
| 1978 | 18 | 0 |
| 1979 | 12 | 0 |
| 1980 | 19 | 0 |
| 1981 | 22 | 0 |
| 1982 | 20 | 0 |
| 1983 | 15 | 0 |
| 1984 | 22 | 0 |
| 1985 | 20 | 0 |
| 1986 | 19 | 0 |
| 1987 | 10 | 0 |
| 1988 | 11 | 0 |
| 1989 | 12 | 0 |
| 1990 | 17 | 0 |
| 1991 | 11 | 0 |
| 1992 | 18 | 0 |
| 1993 | 7 | 0 |
| 1994 | 12 | 0 |
| 1995 | 20 | 0 |
| 1996 | 14 | 0 |
| 1997 | 16 | 0 |
| 1998 | 14 | 0 |
| 1999 | 14 | 0 |
| 2000 | 10 | 0 |
| 2001 | 17 | 1 |
| 2002 | 23 | 18 |
| 2003 | 16 | 20 |
| 2004 | 9 | 24 |
| 2005 | 10 | 20 |
| 2006 | 7 | 24 |
| 2007 | 4 | 26 |
| 2008 | 5 | 30 |
| 2009 | 9 | 36 |
| 2010 | 31 | 38 |
| 2011 | 26 | 37 |
| 2012 | 29 | 55 |
| 2013 | 37 | 57 |
| 2014 | 51 | 78 |
| 2015 | 55 | 86 |
| 2016 | 70 | 103 |
| 2017 | 54 | 116 |
| 2018 | 69 | 126 |
| 2019 | 93 | 128 |
| 2020 | 101 | 123 |
| 2021 | 92 | 131 |
| 2022 | 74 | 129 |
| 2023 | 57 | 104 |
| 2024 | 92 | 107 |
| 2025 | 86 | 103 |
| 2026 | 54 | 46 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Main groups
Granted patents with any code in the group
- C05C 9/00Fertilisers containing urea or urea compounds840
- C05C 3/00Fertilisers containing other salts of ammonia or ammonia itself443
- C05C 1/00Ammonium nitrate fertilisers335
- C05C 11/00Nitrogenous fertilisers: other nitrogenous fertilisers296
- C05C 5/00Fertilisers containing other nitrates206
- C05C 7/00Fertilisers containing calcium or other cyanamides47
Recent patents
- Nitrogen fertilizer compositions based on polyphosphate caged structure6 Oct 2026US 12,753,128 B2Agtec Innovations, Inc.
- 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
- Encapsulated fertilizer comprising essential oils, polymers and macronutrients and method of preparation thereof15 Sep 2026US 12,735,367 B2Ypf Tecnologia S.A.
- Use of diaminomethanal carboxylic acid complexes as agricultural spray adjuvants25 Aug 2026US 12,714,102 B2Helena Agri-Enterprises, LLC
- Methods for oxidizing a nitrogen oxide to nitrate25 Aug 2026US 12,715,770 B2University of Miami
- Mineral phosphate ash based fertilizer containing magnesium, produced from sewage sludge ash, and process for the production thereof8 Oct 2026US 2026/0308076 A1
- Compositions and Methods for Agri-Inputs and Uses Thereof8 Oct 2026US 2026/0308077 A1Tidal Vision Products
- 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
- Coated Granular Fertilizer1 Oct 2026US 2026/0296989 A1Jcam Agri. Co., Ltd.
- System for producing technical grade ammonium nitrate and method of producing thereof17 Sep 2026US 2026/0274696 A1Yara International Asa
Most cited
By later US patents
- Biochar157US 8,361,186 B1Full Circle Biochar, Inc. · 2013
- Process for preparing spheroidally shaped products, solid at room temperature124US 4,469,648 AMontedison S.p.A. · 1984
- Method for reducing CO2, CO, NOX, and SOx emissions106US 6,447,437 B1UT-Battelle, LLC · 2002
- Granular urea-based fertilizer90US 5,352,265 AFreeport-McMoRan Resource Partners, Limited Partnership · 1994
- Method for applying coatings to solid particles84US 3,991,225 ATennessee Valley Authority · 1976