C01B 25/308
Methods for converting an alkali metal orthophosphate into another one
Official title: {Methods for converting an alkali metal orthophosphate into another one; Purification; Decolorasing; Dehydrating; Drying}
C01B25/308 (Methods for converting an alkali metal orthophosphate into another one) appears on 22 US grants and 12 published applications in this corpus.
Search patents in C01B- Granted patents
- 22
- Published applications
- 12
- Assignees
- 18
- Inventors
- 63
- Latest grant
- 24 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
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| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 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 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 1 | 1 |
| 2020 | 0 | 0 |
| 2021 | 0 | 2 |
| 2022 | 0 | 1 |
| 2023 | 2 | 1 |
| 2024 | 2 | 3 |
| 2025 | 1 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Preparation method of cesium difluorophosphate for aqueous negative electrode slurry, negative electrode slurry, negative electrode plate, and secondary battery24 Mar 2026US 12,583,748 B2Zhuhai Smoothway Electronic Materials Co., Ltd.
- Systems and methods for the recycling of lithium from battery waste17 Jun 2025US 12,330,954 B2Li Industries, Inc.
- Systems and methods for the recycling of lithium from battery waste29 Oct 2024US 12,129,180 B2Li Industries, Inc.
- Lithium metal phosphate electrode manufacturing30 Apr 2024US 11,973,225 B2Rivian IP Holdings, LLC
- Lithium recovery from borax dilute solutions31 Oct 2023US 11,802,051 B2Eti Maden Isletmeleri Genel Mudurlugu
- Systems and methods for the recycling of lithium from battery waste4 Sep 2025US 2025/0276907 A1Li Industries, Inc.
- Systems and methods for the recycling of lithium from battery waste9 Jan 2025US 2025/0011184 A1Li Industries, Inc.
- Systems and methods for the recycling of lithium from battery waste5 Sep 2024US 2024/0294389 A1Li Industries, Inc.
- Lithium metal phosphate electrode manufacturing4 Apr 2024US 2024/0113295 A1Rivian IP Holdings, LLC
- Recycling and reworking method of lithium iron phosphate cathode material14 Mar 2024US 2024/0088466 A1Advanced Lithium Electrochemistry Co., Ltd.
Most cited
By later US patents
- Production of phosphates from alkali-processes phosphate rock9US 4,777,026 A1988
- Process for the manufacture of monopotassium phosphate9US 4,836,995 AHaifa Chemicals Ltd. · 1989
- Regeneration of carbon employed in the wet process production of phosphoric acid7US 4,299,805 ACalgon Corporation · 1981
- Regeneration of carbon employed in the wet process production of alkali metal phosphates6US 4,369,168 ACalgon Corporation · 1983
- Drying intumescent material4US 4,304,052 ABFG Glassgroup · 1981