C05B 1/04
Double-superphosphate
Official title: Double-superphosphate; Triple-superphosphate; Other fertilisers based essentially on monocalcium phosphate
C05B1/04 (Double-superphosphate) appears on 39 US grants and 39 published applications in this corpus.
Search patents in C05B- Granted patents
- 39
- Published applications
- 39
- Assignees
- 44
- Inventors
- 128
- Latest grant
- 3 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 2 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 2 | 0 |
| 2016 | 0 | 6 |
| 2017 | 0 | 1 |
| 2018 | 2 | 8 |
| 2019 | 7 | 0 |
| 2020 | 3 | 3 |
| 2021 | 1 | 6 |
| 2022 | 2 | 4 |
| 2023 | 1 | 3 |
| 2024 | 3 | 2 |
| 2025 | 1 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Coherent dispersible granules and methods for forming coherent dispersible granules3 Mar 2026US 12,565,456 B2Phospholution Inc.
- Microbial assisted phosphorous recovery under anaerobic condition8 Jul 2025US 12,351,496 B2The Governors of the University of Alberta
- Use of a bag having an inner and an outer compartment for fertilizers31 Dec 2024US 12,179,989 B2Fertilizers & Chemicals Ltd.
- Coated fertilizer containing urease inhibitor8 Oct 2024US 12,110,258 B2Sabic Agri-Nutrients Company
- Anti-caking fertilizer compositions4 Jun 2024US 11,999,662 B2Sabic Agri-Nutrients Company
- A mineral phosphate ash based fertilizer and a process for the production thereof23 Apr 2026US 2026/0109656 A1
- Coherent dispersible granules and methods for forming coherent dispersible granules31 Oct 2024US 2024/0360050 A1Phospholution Inc.
- Process for producing phosphate fertilizer with micronized sulfur26 Sep 2024US 2024/0317649 A1Sulvaris Inc.
- Industrial process for obtaining an agricultural composition constituted by solubilizing and phosphorus mineralizing microorganisms, and use in the production and optimization of mineral, organomineral and organic fertilizers21 Sep 2023US 2023/0295669 A1Biotrop SoluçõEs BiolóGicas E ParticipaçõEs Ltda.
- Fertilizer Stick15 Jun 2023US 2023/0180654 A1SimplyGro LLC
Most cited
By later US patents
- Non-acidic, high calcium load aqueous fertilizer29US 7,695,541 B12010
- Processes and equipment for production of elemental phosphorus and thermal phosphoric acid27US 4,919,906 AJames C. Barber and Associates, Inc. · 1990
- Preparation of fertilizer and animal feed from molasses fermentation residue17US 3,983,255 AUnisearch Limited · 1976
- Composite fertilizer and method for its manufacture16US 4,032,319 AJ. R. Simplot Company · 1977
- Fertilizer composition containing micronutrients and methods of making same14US 9,199,883 B2The Mosaic Company · 2015