C07C 5/271
With inorganic acids
Official title: {with inorganic acids; with salts or anhydrides of acids}
C07C5/271 (With inorganic acids) appears on 98 US grants and 14 published applications in this corpus.
Search patents in C07C- Granted patents
- 98
- Published applications
- 14
- Assignees
- 22
- Inventors
- 77
- Latest grant
- 18 Mar 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 5 | 0 |
| 1978 | 6 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 11 | 0 |
| 1988 | 14 | 0 |
| 1989 | 11 | 0 |
| 1990 | 11 | 0 |
| 1991 | 4 | 0 |
| 1992 | 1 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 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 | 1 |
| 2004 | 1 | 2 |
| 2005 | 1 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 1 | 1 |
| 2020 | 0 | 2 |
| 2021 | 2 | 2 |
| 2022 | 2 | 0 |
| 2023 | 0 | 2 |
| 2024 | 1 | 1 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Method and apparatus for selective alcohol upgrading18 Mar 2025US 12,252,462 B2Air Company Holdings, Inc.
- Method and apparatus for selective alcohol upgrading14 May 2024US 11,981,623 B2Air Company Holdings, Inc.
- Systems and methods for converting n-butane to iso-butane16 Aug 2022US 11,414,361 B2Sabic Global Technologies B.V.
- Process for N-butanizing field butane feedstock to thermal crackers14 Jun 2022US 11,358,916 B2Sabic Global Technologies B.V.
- Integrated perchloroethylene decomposition reactor design for C4 and C5-6 isomerization units15 Jun 2021US 11,034,629 B1Uop LLC
- Method and apparatus for selective alcohol upgrading5 Jun 2025US 2025/0178992 A1Air Company Holdings, Inc.
- Method and apparatus for selective alcohol upgrading25 Jul 2024US 2024/0246894 A1Air Company Holdings, Inc.
- Method and apparatus for selective alcohol upgrading2 Nov 2023US 2023/0348347 A1Air Company Holdings, Inc.
- Method for producing propylene oligomer20 Jul 2023US 2023/0227381 A1Idemitsu Kosan Co., Ltd.
- Integrated perchloroethylene decomposition reactor design for c4 and c5-6 isomerization units8 Jul 2021US 2021/0206705 A1Uop LLC
Most cited
By later US patents
- Crystalline silicoaluminophosphates925US 4,440,871 AUnion Carbide Corporation · 1984
- Crystalline metallophosphate compositions556US 4,310,440 AUnion Carbide Corporation · 1982
- Crystalline metal aluminophosphates260US 4,567,029 AUnion Carbide Corporation · 1986
- Crystalline ferroaluminophosphates91US 4,554,143 AUnion Carbide Corporation · 1985
- Molecular sieve compositions80US 4,793,984 AUnion Carbide Corporation · 1988