C07C 9/12
Iso-butane
C07C9/12 (Iso-butane) appears on 19 US grants and 16 published applications in this corpus.
Search patents in C07C- Granted patents
- 19
- Published applications
- 16
- Assignees
- 19
- Inventors
- 79
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 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 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 1 | 0 |
| 2020 | 1 | 4 |
| 2021 | 1 | 3 |
| 2022 | 2 | 1 |
| 2023 | 2 | 3 |
| 2024 | 2 | 1 |
| 2025 | 2 | 1 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Heat integration via heat pump on bottom dividing wall column6 Oct 2026US 12,752,216 B2Sulzer Management AG
- Dividing wall column in alkylation process for reactor recycle and product separation27 May 2025US 12,312,289 B2Kellogg Brown & Root LLC
- Heat storage in chemical reactors8 Apr 2025US 12,269,984 B2Lummus Technology Inc.
- Energy-efficient process for removing butenes from C4-hydrocarbon streams and subsequent n/iso separation2 Apr 2024US 11,945,777 B2Evonik Oxeno GmbH
- Heat storage in chemical reactors5 Mar 2024US 11,920,078 B2Lummus Technology Inc.
- Lewis acid base pairs as highly active catalytic sites for hydrogenation and dehydrogenation processes2 Jul 2026US 2026/0183748 A1BASF SE
- Low-carbon alkane dehydrogenation catalyst, preparation method therefor and application thereof8 Jan 2026US 2026/0008034 A1Rezel Engineering Co., Ltd
- Method for producing hydrocarbon and method for producing silicon carbide11 Sep 2025US 2025/0282697 A1Resonac Corporation
- Heat storage in chemical reactors1 Aug 2024US 2024/0254377 A1Lummus Technology Inc.
- Energy-efficient process for removing butenes from c4-hydrocarbon streams and subsequent n/iso separation7 Dec 2023US 2023/0391690 A1Evonik Operations GmbH
Most cited
By later US patents
- Conversion of methanol to products comprising gasoline boiling components40US 3,969,426 AMobil Oil Corporation · 1976
- Butane isomerization process15US 4,324,936 AUop LLC · 1982
- Process for alkane isomerization using reactive chromatography14US 5,530,172 AUop LLC · 1996
- Process for the preparation of an aliphatic alkylate with a high octane number from a C4 cracking fraction8US 6,333,442 B1Institut Francais du Petrole · 2001
- Isomerization process7US 5,227,554 AMobil Oil Corporation · 1993