C07C 7/05
With the aid of auxiliary compounds
Official title: with the aid of auxiliary compounds
C07C7/05 (With the aid of auxiliary compounds) appears on 446 US grants and 293 published applications in this corpus.
Search patents in C07C- Granted patents
- 446
- Published applications
- 293
- Assignees
- 132
- Inventors
- 785
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 5 | 0 |
| 1978 | 8 | 0 |
| 1979 | 12 | 0 |
| 1980 | 4 | 0 |
| 1981 | 12 | 0 |
| 1982 | 6 | 0 |
| 1983 | 10 | 0 |
| 1984 | 10 | 0 |
| 1985 | 11 | 0 |
| 1986 | 4 | 0 |
| 1987 | 7 | 0 |
| 1988 | 2 | 0 |
| 1989 | 6 | 0 |
| 1990 | 11 | 0 |
| 1991 | 8 | 0 |
| 1992 | 15 | 0 |
| 1993 | 12 | 0 |
| 1994 | 4 | 0 |
| 1995 | 21 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 6 | 0 |
| 1999 | 7 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 0 |
| 2002 | 4 | 3 |
| 2003 | 6 | 11 |
| 2004 | 1 | 7 |
| 2005 | 5 | 6 |
| 2006 | 0 | 4 |
| 2007 | 4 | 6 |
| 2008 | 5 | 7 |
| 2009 | 5 | 6 |
| 2010 | 4 | 9 |
| 2011 | 5 | 6 |
| 2012 | 7 | 10 |
| 2013 | 13 | 15 |
| 2014 | 11 | 19 |
| 2015 | 15 | 22 |
| 2016 | 9 | 15 |
| 2017 | 22 | 26 |
| 2018 | 28 | 25 |
| 2019 | 28 | 19 |
| 2020 | 20 | 9 |
| 2021 | 7 | 9 |
| 2022 | 12 | 16 |
| 2023 | 6 | 15 |
| 2024 | 17 | 11 |
| 2025 | 13 | 11 |
| 2026 | 3 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- α-olefin extractant and method for separating an alkane and an α-olefin6 Oct 2026US 12,753,133 B2Inner Mongolia Yitai Coal-based New Materials Research Institute Co., Ltd.
- Integrated stabilizer in deisobutanizer for isomerization of hydrocarbons and product separation4 Aug 2026US RE50,978 E1Kellogg Brown & Root LLC
- Processes and apparatuses for separating aromatic and non-aromatic hydrocarbons6 Jan 2026US 12,516,004 B2Uop LLC
- Use of polyamines in the pretreatment of biomass9 Dec 2025US 12,492,155 B2National Technology & Engineering Solutions of Sandia, LLC
- Process for removing butenes from C4-hydrocarbon streams and two-stage evaporation18 Nov 2025US 12,473,245 B2Evonik Oxeno GmbH
- Energy-efficient process for separating butenes from c4-hydrocarbon streams30 Jul 2026US 2026/0217631 A1Evonik Oxeno GmbH
- Method for purifying linear alpha olefins with stage-heated distillation column23 Jul 2026US 2026/0208066 A1Sabic Global Technologies B.V.
- Energy-efficient process for separating butenes from c4-hyrocarbons streams9 Jul 2026US 2026/0193156 A1Evonik Oxeno GmbH
- Use of polyamines in the pretreatment of biomass23 Apr 2026US 2026/0109657 A1National Technology & Engineering Solutions of Sandia, LLC
- Processes and apparatuses for separating aromatic and non-aromatic hydrocarbons2 Apr 2026US 2026/0092025 A1Uop LLC
Most cited
By later US patents
- Distillative separations of gas mixtures containing methane, carbon dioxide and other components129US 4,462,814 AKoch Process Systems, Inc. · 1984
- Cryogenic distillative separation of acid gases from methane111US 4,318,723 AKoch Process Systems, Inc. · 1982
- Method for producing 1-butene87US 7,485,761 B2BASF SE · 2009
- Method of separating acid gases, particularly carbon dioxide, from methane by the addition of a light gas such as helium75US 4,511,382 AExxon Production Research Company · 1985
- Method for cryogenic separation of carbon dioxide from hydrocarbons68US 4,185,978 AStandard Oil Company (Indiana) · 1980