C08F 8/44
Preparation of metal salts or ammonium salts
C08F8/44 (Preparation of metal salts or ammonium salts) appears on 1,421 US grants and 759 published applications in this corpus.
Search patents in C08F- Granted patents
- 1,421
- Published applications
- 759
- Assignees
- 600
- Inventors
- 3,111
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 26 | 0 |
| 1977 | 25 | 0 |
| 1978 | 29 | 0 |
| 1979 | 23 | 0 |
| 1980 | 30 | 0 |
| 1981 | 26 | 0 |
| 1982 | 25 | 0 |
| 1983 | 22 | 0 |
| 1984 | 20 | 0 |
| 1985 | 27 | 0 |
| 1986 | 24 | 0 |
| 1987 | 33 | 0 |
| 1988 | 22 | 0 |
| 1989 | 48 | 0 |
| 1990 | 43 | 0 |
| 1991 | 54 | 0 |
| 1992 | 39 | 0 |
| 1993 | 43 | 0 |
| 1994 | 51 | 0 |
| 1995 | 28 | 0 |
| 1996 | 48 | 0 |
| 1997 | 49 | 0 |
| 1998 | 25 | 0 |
| 1999 | 43 | 0 |
| 2000 | 32 | 0 |
| 2001 | 34 | 15 |
| 2002 | 34 | 24 |
| 2003 | 38 | 36 |
| 2004 | 21 | 28 |
| 2005 | 16 | 27 |
| 2006 | 27 | 45 |
| 2007 | 18 | 38 |
| 2008 | 14 | 41 |
| 2009 | 14 | 33 |
| 2010 | 25 | 43 |
| 2011 | 20 | 33 |
| 2012 | 25 | 32 |
| 2013 | 24 | 27 |
| 2014 | 28 | 24 |
| 2015 | 19 | 28 |
| 2016 | 20 | 24 |
| 2017 | 25 | 29 |
| 2018 | 21 | 27 |
| 2019 | 19 | 28 |
| 2020 | 20 | 32 |
| 2021 | 27 | 38 |
| 2022 | 33 | 24 |
| 2023 | 22 | 19 |
| 2024 | 15 | 26 |
| 2025 | 20 | 21 |
| 2026 | 7 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Ionomer resin15 Sep 2026US 12,735,559 B2Kuraray Europe GmbH
- Ionomer resin, resin sheet, and laminated glass5 May 2026US 12,617,885 B2Kuraray Europe GmbH
- Polymers, compositions and methods for treating hyperuricemia21 Apr 2026US 12,605,401 B2Waterstone Pharmaceuticals(Wuhan) Co., Ltd.
- Single-ion electrolytes for solid-state alkaline batteries14 Apr 2026US 12,603,388 B2The Government of the United States of America, as represented by the Secretary of the Navy
- Copolymer additive24 Mar 2026US 12,583,959 B2Dow Global Technologies LLC
- Single-ion electrolytes for solid-state alkaline batteries24 Sep 2026US 2026/0291007 A1The Government of the United States of America, as represented by the Secretary of the Navy
- Cationic Compounds for Anion Exchange Membranes3 Sep 2026US 2026/0257990 A1Agfa-Gevaert
- Battery recycling materials3 Sep 2026US 2026/0258523 A1Uchicago Argonne, LLC
- Processes for producing reaction products including quaternary ammonium salts13 Aug 2026US 2026/0234299 A1The Lubrizol Corporation
- Crosslinkable polymer composition, crosslinked polymer material, insulated electric wire, and wiring harness13 Aug 2026US 2026/0234346 A1Autonetworks Technologies, Ltd.
Most cited
By later US patents
- Polymeric transition metal complexes and uses thereof1,155US 6,605,200 B1TheraSense, Inc. · 2003
- Transition metal complexes with bidentate ligand having an imidazole ring and sensor constructed therewith1,152US 6,605,201 B1TheraSense, Inc. · 2003
- Water absorbing starch resins511US 4,076,663 ASanyo Chemical Industries, Ltd. · 1978
- Water-soluble negative photoresist polymer and composition containing the same469US 7,399,570 B2Hynix Semiconductor Inc. · 2008
- Metal oversheathed electrical resistance heater341US 4,626,665 AShell Oil Company · 1986