C01B 25/38
Condensed phosphates
C01B25/38 (Condensed phosphates) appears on 229 US grants and 109 published applications in this corpus.
Search patents in C01B- Granted patents
- 229
- Published applications
- 109
- Assignees
- 156
- Inventors
- 517
- Latest grant
- 14 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 14 | 0 |
| 1978 | 5 | 0 |
| 1979 | 7 | 0 |
| 1980 | 8 | 0 |
| 1981 | 11 | 0 |
| 1982 | 12 | 0 |
| 1983 | 9 | 0 |
| 1984 | 4 | 0 |
| 1985 | 5 | 0 |
| 1986 | 3 | 0 |
| 1987 | 11 | 0 |
| 1988 | 9 | 0 |
| 1989 | 11 | 0 |
| 1990 | 8 | 0 |
| 1991 | 8 | 0 |
| 1992 | 4 | 0 |
| 1993 | 4 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 5 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 2 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 3 |
| 2007 | 1 | 2 |
| 2008 | 0 | 1 |
| 2009 | 1 | 3 |
| 2010 | 2 | 7 |
| 2011 | 2 | 3 |
| 2012 | 2 | 8 |
| 2013 | 1 | 3 |
| 2014 | 2 | 2 |
| 2015 | 7 | 11 |
| 2016 | 6 | 13 |
| 2017 | 4 | 6 |
| 2018 | 10 | 9 |
| 2019 | 8 | 3 |
| 2020 | 3 | 4 |
| 2021 | 6 | 5 |
| 2022 | 2 | 1 |
| 2023 | 3 | 6 |
| 2024 | 4 | 5 |
| 2025 | 2 | 9 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Methods for the continuous polymerization of phosphate compounds to form polyphosphate compositions14 Oct 2025US 12,441,848 B2J. M. Huber Corporation
- Positive electrode additive, manufacturing method thereof, and positive electrode and lithium rechargeable battery including the same11 Mar 2025US 12,249,714 B2LG Energy Solution, Ltd.
- Condensate of poly/mono-phosphorous acid and aluminum hydrogen phosphate, preparation and application thereof31 Dec 2024US 12,180,351 B2Jiangsu Liside New Material Co., Ltd.
- Antimicrobial composite material17 Sep 2024US 12,091,316 B2Consejo Superior de Investigaciones Cientificas
- Methods for the continuous polymerization of phosphate compounds to form polyphosphate compositions26 Mar 2024US 11,939,430 B2J. M. Huber Corporation
- Zinc polyphosphate and method for producing same6 Aug 2026US 2026/0225890 A1Kamui Pharma, Inc.
- Sodium iron phosphate pyrophosphate positive-electrode material and preparation method thereof, battery, and energy storage device25 Dec 2025US 2025/0391860 A1Xiamen Hithium Energy Storage Technology Co., Ltd.
- Synthesis of nanostructured zirconium phosphate27 Nov 2025US 2025/0361145 A1Evonik Operations GmbH
- Effective calcium phosphate radiative cooling materials20 Nov 2025US 2025/0353747 A1Northeastern University
- Positive electrode active material and preparation method therefor, secondary battery, battery module, battery pack and electric device11 Sep 2025US 2025/0286064 A1Contemporary Amperex Technology (Hong Kong) Limited
Most cited
By later US patents
- Crystallization of poly ammonium phosphate in particular organic material and uses thereof44US 9,249,021 B22016
- Poly(arylether-sulfone) semipermeable membrane comprising substituted halomethyl and/or quaternary nitrogen groups42US 4,029,582 ADaicel Corporation · 1977
- Process for making condensed aluminum phosphates35US 3,943,231 AHoechst Aktiengesellschaft · 1976
- Positive active material for an electric cell with a non-aqueous electrolyte32US 4,260,668 ASaft Leclanche · 1981
- Mesoporous crystalline composition with a high surface area of a tetravalent metal which can be used as catalyst26US 5,993,768 AEniricerche S. p. A. · 1999