C05C 9/00
Fertilisers containing urea or urea compounds
C05C9/00 (Fertilisers containing urea or urea compounds) appears on 840 US grants and 942 published applications in this corpus.
Search patents in C05C- Granted patents
- 840
- Published applications
- 942
- Assignees
- 472
- Inventors
- 1,631
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 7 | 0 |
| 1978 | 10 | 0 |
| 1979 | 8 | 0 |
| 1980 | 9 | 0 |
| 1981 | 7 | 0 |
| 1982 | 9 | 0 |
| 1983 | 8 | 0 |
| 1984 | 12 | 0 |
| 1985 | 10 | 0 |
| 1986 | 12 | 0 |
| 1987 | 9 | 0 |
| 1988 | 5 | 0 |
| 1989 | 6 | 0 |
| 1990 | 12 | 0 |
| 1991 | 9 | 0 |
| 1992 | 6 | 0 |
| 1993 | 4 | 0 |
| 1994 | 5 | 0 |
| 1995 | 11 | 0 |
| 1996 | 8 | 0 |
| 1997 | 8 | 0 |
| 1998 | 7 | 0 |
| 1999 | 6 | 0 |
| 2000 | 8 | 0 |
| 2001 | 11 | 1 |
| 2002 | 11 | 9 |
| 2003 | 9 | 9 |
| 2004 | 6 | 14 |
| 2005 | 5 | 5 |
| 2006 | 2 | 13 |
| 2007 | 1 | 13 |
| 2008 | 2 | 14 |
| 2009 | 5 | 19 |
| 2010 | 14 | 17 |
| 2011 | 13 | 22 |
| 2012 | 10 | 28 |
| 2013 | 19 | 28 |
| 2014 | 24 | 43 |
| 2015 | 26 | 43 |
| 2016 | 40 | 59 |
| 2017 | 28 | 52 |
| 2018 | 33 | 69 |
| 2019 | 53 | 66 |
| 2020 | 48 | 75 |
| 2021 | 56 | 69 |
| 2022 | 46 | 77 |
| 2023 | 32 | 52 |
| 2024 | 58 | 67 |
| 2025 | 51 | 57 |
| 2026 | 30 | 21 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Nitrogen fertilizer compositions based on polyphosphate caged structure6 Oct 2026US 12,753,128 B2Agtec Innovations, Inc.
- 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
- Compositions and methods for coating of nitrification inhibitors with a solution containing a high concentration of urease inhibitors18 Aug 2026US 12,709,583 B2Soilgenic Technologies, LLC
- Liquid formulations of urease inhibitors for fertilizers4 Aug 2026US 12,698,243 B2Soilgenic Technologies, LLC
- 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.
- Nitrification inhibitors30 Jul 2026US 2026/0215425 A1
- Methods for promoting plant health using free enzymes and microorganisms that overexpress enzymes30 Jul 2026US 2026/0217621 A1Spogen Biotech Inc.
Most cited
By later US patents
- Process for preparing spheroidally shaped products, solid at room temperature124US 4,469,648 AMontedison S.p.A. · 1984
- 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
- Attrition resistant controlled release fertilizers82US 4,711,659 A1987
- Hardness suppression in urea solutions75US 5,645,756 ANalco Fuel Tech · 1997