C05D 1/00
Fertilisers containing potassium
Official title: Fertilisers containing potassium (C05D7/00 takes precedence)
C05D1/00 (Fertilisers containing potassium) appears on 331 US grants and 451 published applications in this corpus.
Search patents in C05D- Granted patents
- 331
- Published applications
- 451
- Assignees
- 287
- Inventors
- 892
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 5 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 4 | 3 |
| 2003 | 3 | 2 |
| 2004 | 3 | 1 |
| 2005 | 0 | 3 |
| 2006 | 1 | 2 |
| 2007 | 0 | 3 |
| 2008 | 0 | 1 |
| 2009 | 1 | 1 |
| 2010 | 2 | 4 |
| 2011 | 0 | 8 |
| 2012 | 6 | 10 |
| 2013 | 6 | 7 |
| 2014 | 9 | 25 |
| 2015 | 15 | 19 |
| 2016 | 18 | 41 |
| 2017 | 12 | 31 |
| 2018 | 31 | 29 |
| 2019 | 29 | 34 |
| 2020 | 27 | 45 |
| 2021 | 32 | 37 |
| 2022 | 28 | 38 |
| 2023 | 19 | 24 |
| 2024 | 14 | 38 |
| 2025 | 23 | 18 |
| 2026 | 8 | 27 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for producing sulphur-containing potash granules18 Aug 2026US 12,709,546 B2K+S Aktiengesellschaft
- Agricultural fertilizers with montmorillonite clays2 Jun 2026US 12,643,836 B2
- Nutrient compositions26 May 2026US 12,635,624 B2OMS Investments, Inc.
- Paper mulch granule with fertilizer for improved seed establishment26 May 2026US 12,637,394 B2Skyline Encap Holdings, LLC.
- Acidified fertilizer granules19 May 2026US 12,630,485 B2Sabic Agri-Nutrients Company
- 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
- Mineral phosphate ash based fertilizer containing magnesium, produced from sewage sludge ash, and process for the production thereof8 Oct 2026US 2026/0308076 A1
- Incorporation of biological agents in fertilizers3 Sep 2026US 2026/0257975 A1The Mosaic Company
- A composition of polyhalite and manure and uses thereof27 Aug 2026US 2026/0250212 A1
- A compound mixture20 Aug 2026US 2026/0242302 A1Anglo American Woodsmith Limited
Most cited
By later US patents
- Biochar157US 8,361,186 B1Full Circle Biochar, Inc. · 2013
- Biochar67US 8,747,797 B2Full Circle Biochar, Inc. · 2014
- Use of metallic peroxides in biormediation56US 5,264,018 APlant Research Laboratories · 1993
- Recovery of inorganic salt during processing of lignocellulosic feedstocks52US 7,585,652 B2Iogen Energy Corporation · 2009
- Controlled release rate fertilizers and methods of making same46US 6,749,659 B1Enersul, Inc. · 2004