C05B 1/00
Superphosphates, i.e. fertilisers produced by reacting rock or bone phosphates with sulfuric
Official title: Superphosphates, i.e. fertilisers produced by reacting rock or bone phosphates with sulfuric or phosphoric acid in such amounts and concentrations as to yield solid products directly
C05B1/00 (Superphosphates, i.e. fertilisers produced by reacting rock or bone phosphates with sulfuric) appears on 107 US grants and 130 published applications in this corpus.
Search patents in C05B- Granted patents
- 107
- Published applications
- 130
- Assignees
- 114
- Inventors
- 336
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 2 |
| 2003 | 3 | 3 |
| 2004 | 0 | 3 |
| 2005 | 1 | 2 |
| 2006 | 1 | 1 |
| 2007 | 0 | 1 |
| 2008 | 1 | 2 |
| 2009 | 0 | 1 |
| 2010 | 2 | 1 |
| 2011 | 0 | 4 |
| 2012 | 0 | 3 |
| 2013 | 1 | 3 |
| 2014 | 4 | 4 |
| 2015 | 3 | 2 |
| 2016 | 5 | 12 |
| 2017 | 3 | 5 |
| 2018 | 5 | 11 |
| 2019 | 10 | 4 |
| 2020 | 4 | 9 |
| 2021 | 4 | 11 |
| 2022 | 7 | 13 |
| 2023 | 6 | 11 |
| 2024 | 5 | 9 |
| 2025 | 4 | 5 |
| 2026 | 5 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Methods for increasing chromium in white kidney beans14 Apr 2026US 12,599,071 B2Hansford Biotech Co., Ltd.
- Coherent dispersible granules and methods for forming coherent dispersible granules3 Mar 2026US 12,565,456 B2Phospholution Inc.
- Granulated agricultural composition comprising macro- and micronutrients, and related methods3 Mar 2026US 12,565,458 B2YPF Sociedad Anonima
- Agglomerated dispersible granules, methods for amending soil, and activated alumina suspensions24 Feb 2026US 12,559,436 B2Phospholutions Inc.
- Integrated ammonia and sulfuric acid production plant and process20 Jan 2026US 12,528,752 B2Chemetics Inc.
- Method for utilizing poorly-soluble phosphoric acid and method for cultivating plant bodies20 Aug 2026US 2026/0242301 A1Aquasolution Corporation
- Potassium based micronutrients chelated composition for foliar application and preparation process thereof20 Aug 2026US 2026/0242305 A1
- Hydrophobic coatings to improve the physical quality parameters of fertilizers30 Jul 2026US 2026/0217623 A1The Mosaic Company
- A mineral phosphate ash based fertilizer and a process for the production thereof23 Apr 2026US 2026/0109656 A1
- Dispersible activated bauxite granules and methods for forming dispersible activated bauxite granules12 Mar 2026US 2026/0070851 A1Phospholutions Inc.
Most cited
By later US patents
- Biochemical fertilizer composition73US 6,228,806 B1Organica, Inc. · 2001
- Compositions containing phosphate and xanthan gum variants38US 6,432,155 B1CP Kelco U.S., Inc. · 2002
- Process for coating granular fertilizers with chelated micronutrients37US 3,961,932 ACiba-Geigy Corporation · 1976
- Sulfur-based fertilizer and process for production thereof30US 5,571,303 ACominco Fertilizers · 1996
- Sulfur-containing fertilizer composition and method for preparing same30US 6,544,313 B2Cargill, Incorporated · 2003