C05B 13/06
Alkali and alkaline earth meta- or polyphosphate fertilisers
C05B13/06 (Alkali and alkaline earth meta- or polyphosphate fertilisers) appears on 85 US grants and 43 published applications in this corpus.
Search patents in C05B- Granted patents
- 85
- Published applications
- 43
- Assignees
- 55
- Inventors
- 153
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 9 | 0 |
| 1978 | 1 | 0 |
| 1979 | 4 | 0 |
| 1980 | 6 | 0 |
| 1981 | 5 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 3 |
| 2013 | 1 | 4 |
| 2014 | 1 | 0 |
| 2015 | 5 | 6 |
| 2016 | 4 | 3 |
| 2017 | 1 | 1 |
| 2018 | 3 | 5 |
| 2019 | 2 | 4 |
| 2020 | 4 | 1 |
| 2021 | 3 | 2 |
| 2022 | 1 | 2 |
| 2023 | 1 | 4 |
| 2024 | 2 | 3 |
| 2025 | 1 | 1 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Nitrogen fertilizer compositions based on polyphosphate caged structure6 Oct 2026US 12,753,128 B2Agtec Innovations, Inc.
- Agglomerated dispersible granules, methods for amending soil, and activated alumina suspensions24 Feb 2026US 12,559,436 B2Phospholutions Inc.
- Method for manufacturing useful products containing carbonized solids by treating organic wastes containing heavy metals27 Jan 2026US 12,533,719 B2Matsui Consulting Firm Co., Ltd.
- Compacted muriate of potash fertilizers containing micronutrients and methods of making same22 Jul 2025US 12,365,637 B2The Mosaic Company
- Solid phase fertilizer composition27 Aug 2024US 12,071,384 B2Arevo, Inc.
- Compacted muriate of potash fertilizers containing micronutrients and methods of making same15 Jan 2026US 2026/0015296 A1The Mosaic Company
- Phosphorous containing particles8 May 2025US 2025/0145545 A1NDSU Research Foundation
- Solid phase fertilizer composition14 Nov 2024US 2024/0376020 A1Arevo, Inc.
- Controlled release glass fertilizer and a method for preparing the same15 Aug 2024US 2024/0270655 A1Yildiz Teknik Universitesi
- Method for manufacturing useful products11 Jul 2024US 2024/0226976 A1Matsui Consulting Co., Ltd.
Most cited
By later US patents
- Crystallization of poly ammonium phosphate in particular organic material and uses thereof44US 9,249,021 B22016
- Ammonium polyphosphate sulfate fertilizers from wet-process phosphoric acid31US 4,377,406 ATennessee Valley Authority · 1983
- Method and structure for terminating fine wires20US 4,026,013 AAMP Incorporated · 1977
- Inorganic phosphorous fertilizer20US 5,707,418 ASafergro Laboratories, Inc. · 1998
- Stable form of iron humate or of other meso and micro nutritive elements available for plant nutrition and method for obtaining it19US 6,080,220 AValagro S.P.A. · 2000