C01C 1/162
Ammonium fluoride
Official title: {Ammonium fluoride}
C01C1/162 (Ammonium fluoride) appears on 37 US grants and 17 published applications in this corpus.
Search patents in C01C- Granted patents
- 37
- Published applications
- 17
- Assignees
- 30
- Inventors
- 80
- Latest grant
- 26 Dec 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 6 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 1 |
| 2002 | 1 | 2 |
| 2003 | 0 | 2 |
| 2004 | 0 | 3 |
| 2005 | 1 | 0 |
| 2006 | 3 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 1 | 1 |
| 2018 | 0 | 1 |
| 2019 | 0 | 2 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 2 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- High purity synthetic fluorite, process for preparing the same and apparatus therefor26 Dec 2023US 11,851,341 B2Fluorsid S.P.A.
- Integrated processes for treatment of an ammonium fluorosulfate byproduct of the production of bis (fluorosulfonyl) imide3 Oct 2023US 11,772,967 B2Honeywell International Inc.
- Processes for the recovery of fluoride and silica products and phosphoric acid from wet-process phosphoric acid facilities and contaminated waste waters30 May 2017US 9,663,375 B2K-Technologies, Inc.
- Method for producing highly pure solutions using gaseous hydrogen fluoride10 Apr 2012US 8,153,095 B2Honeywell International Inc.
- Method and apparatus for producing nitrogen trifluoride26 Oct 2010US 7,820,127 B2Showa Denko K. K.
- Fluoride-containing ammonium salts and methods of production and uses thereof13 Aug 2026US 2026/0234012 A1Massachusetts Institute of Technology
- Integrated processes for treatment of an ammonium fluorosulfate byproduct of the production of bis(fluorosulfonyl) imide7 Jul 2022US 2022/0212929 A1Honeywell International Inc.
- Process for Producing A Molded Polymeric Article18 Apr 2019US 2019/0112449 A1PPG Industries Ohio, Inc.
- Production of fluorine-containing compounds with the aid of an electrochemical measuring chain17 Jan 2019US 2019/0016604 A1Gaskatel Gesellschaft FüR Gassysteme Durch Katalyse Und Elektrochemie Mbh
- High purity synthetic fluorite, process for preparing the same and apparatus therefor19 Apr 2018US 2018/0105433 A1Fluorsid S.P.A.
Most cited
By later US patents
- Point-of-use ammonia purification for electronic component manufacture28US 5,496,778 AStartec Ventures, Inc. · 1996
- On-site generation of ultra-high-purity buffered-HF for semiconductor processing28US 5,722,442 AStartec Ventures, Inc. · 1998
- Process for removing acids from lithium salt solutions20US 6,033,808 AFMC Corporation · 2000
- Process for removing acids from lithium salt solutions19US 6,001,325 AFMC Corporation · 1999
- On-site manufacture of ultra-high-purity hydrofluoric acid for semiconductor processing18US 5,785,820 AStartec Ventures, Inc. · 1998