C05D
Inorganic fertilisers not covered by subclasses c05b, c05c
Official title: Inorganic fertilisers not covered by subclasses c05b, c05c; fertilisers producing carbon dioxide
C05D (Inorganic fertilisers not covered by subclasses c05b, c05c) appears on 1,477 US grants and 1,846 published applications in this corpus.
Search patents in C05D- Granted patents
- 1,477
- Published applications
- 1,846
- Assignees
- 1,075
- Inventors
- 3,464
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 17 | 0 |
| 1977 | 16 | 0 |
| 1978 | 19 | 0 |
| 1979 | 7 | 0 |
| 1980 | 10 | 0 |
| 1981 | 15 | 0 |
| 1982 | 10 | 0 |
| 1983 | 11 | 0 |
| 1984 | 10 | 0 |
| 1985 | 8 | 0 |
| 1986 | 6 | 0 |
| 1987 | 5 | 0 |
| 1988 | 6 | 0 |
| 1989 | 7 | 0 |
| 1990 | 4 | 0 |
| 1991 | 10 | 0 |
| 1992 | 15 | 0 |
| 1993 | 12 | 0 |
| 1994 | 13 | 0 |
| 1995 | 22 | 0 |
| 1996 | 15 | 0 |
| 1997 | 24 | 0 |
| 1998 | 21 | 0 |
| 1999 | 28 | 0 |
| 2000 | 15 | 0 |
| 2001 | 28 | 4 |
| 2002 | 27 | 34 |
| 2003 | 24 | 40 |
| 2004 | 15 | 33 |
| 2005 | 16 | 32 |
| 2006 | 5 | 34 |
| 2007 | 10 | 30 |
| 2008 | 12 | 42 |
| 2009 | 13 | 26 |
| 2010 | 18 | 38 |
| 2011 | 30 | 53 |
| 2012 | 35 | 57 |
| 2013 | 36 | 53 |
| 2014 | 40 | 89 |
| 2015 | 66 | 88 |
| 2016 | 59 | 114 |
| 2017 | 53 | 117 |
| 2018 | 86 | 98 |
| 2019 | 92 | 99 |
| 2020 | 94 | 118 |
| 2021 | 82 | 136 |
| 2022 | 67 | 133 |
| 2023 | 56 | 104 |
| 2024 | 74 | 113 |
| 2025 | 64 | 74 |
| 2026 | 49 | 87 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Main groups
Granted patents with any code in the group
Recent patents
- Nitrogen fertilizer compositions based on polyphosphate caged structure6 Oct 2026US 12,753,128 B2Agtec Innovations, Inc.
- Method for producing a soil conditioning agent6 Oct 2026US 12,753,129 B2CCm Technologies Limited
- System and method for the control of biomass conversion systems22 Sep 2026US 12,741,262 B2Takachar Limited
- Method for producing sulphur-containing potash granules18 Aug 2026US 12,709,546 B2K+S Aktiengesellschaft
- Fertilising and/or soil conditioning composition intended for culture substrates and/or culture solutions18 Aug 2026US 12,709,584 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
- Mineral phosphate ash based fertilizer containing magnesium, produced from sewage sludge ash, and process for the production thereof8 Oct 2026US 2026/0308076 A1
- Increasing carbon storage capacity and pollutant remediation in soils using applied hydrogel methods1 Oct 2026US 2026/0296986 A1University of Washington
- Marine glass fertilizer composition based on converter slag1 Oct 2026US 2026/0296988 A1LG Electronics Inc.
- Iodophor formulation and method of making and using thereof24 Sep 2026US 2026/0283157 A1
Most cited
By later US patents
- Biochar157US 8,361,186 B1Full Circle Biochar, Inc. · 2013
- Method for reducing CO2, CO, NOX, and SOx emissions106US 6,447,437 B1UT-Battelle, LLC · 2002
- Water absorbing hydrogels and methods of making and use thereof94US 7,342,058 B2Geohumus International GmbH & Co. KG · 2008
- Process to stabilize bioorganic, raw or treated wastewater sludge89US 5,417,861 AN-Viro International Corporation · 1995
- Disposable absorbent articles containing particulate, free-flowing, insoluble swellable polymers87US 4,058,124 AUnion Carbide Corporation · 1977