C01B 25/405
Of ammonium
Official title: {of ammonium}
C01B25/405 (Of ammonium) appears on 52 US grants and 7 published applications in this corpus.
Search patents in C01B- Granted patents
- 52
- Published applications
- 7
- Assignees
- 28
- Inventors
- 85
- Latest grant
- 14 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 6 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 4 | 0 |
| 1982 | 5 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 2 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 2 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
| 2024 | 1 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Methods for the continuous polymerization of phosphate compounds to form polyphosphate compositions14 Oct 2025US 12,441,848 B2J. M. Huber Corporation
- Methods for the continuous polymerization of phosphate compounds to form polyphosphate compositions26 Mar 2024US 11,939,430 B2J. M. Huber Corporation
- Mixtures of ammonium polyphosphate and at least one soluble ionic compound containing sulfate and/or is capable of releasing sulfate ions18 Apr 2023US 11,628,589 B2Clariant International Ltd.
- Method for preparation of graft modified ammonium polyphosphate with ultra-low hydroplaning and resistance to hydrolysis and application thereof26 Nov 2019US 10,486,970 B2Zhongshan Complord New Materials Co., LTD
- Crystallization of poly ammonium phosphate in particular organic material and uses thereof2 Feb 2016US 9,249,021 B2
- Methods for the continuous polymerization of phosphate compounds to form polyphosphate compositions13 Jun 2024US 2024/0191039 A1J. M. Huber Corporation
- Methods for the continuous polymerization of phosphate compounds to form polyphosphate compositions28 Oct 2021US 2021/0332192 A1J. M. Huber Corporation
- Method for preparation of graft modified ammonium polyphosphate with ultra-low hydroplaning and resistance to hydrolysis and application thereof13 Dec 2018US 2018/0354796 A1Zhongshan Complord New Materials Co., LTD
- Mixtures of ammonium polyphosphate and at least one soluble ionic compound containing sulfate and/or is capable of releasing sulfate ions25 Oct 2018US 2018/0304493 A1Clariant Plastics & Coatings Ltd
- Preparation Method for a Water-Insoluble Crystal Form II Ammonium Polyphosphate with High Purity and Polymerization Degrees16 Aug 2012US 2012/0207660 A1Presafer (Qingyuan) Phosphor Chemical Company Limited
Most cited
By later US patents
- Crystallization of poly ammonium phosphate in particular organic material and uses thereof44US 9,249,021 B22016
- Removal of fluorine from phosphatic solutions20US 4,053,561 AStauffer Chemical Company · 1977
- Process for making pulverulent ammonium polyphosphates stable to hydrolysis18US 4,639,331 AHoechst Aktiengesellschaft · 1987
- Production of granular ammonium polyphosphate from wet-process phosphoric acid15US 4,601,891 ATennessee Valley Authority · 1986
- Novel nitrogen and phosphorus-containing salts12US 3,941,896 AAlbright & Wilson Limited · 1976