C07C 7/12
Purification: by adsorption, i.e. purification or separation of hydrocarbons with the aid
Official title: by adsorption, i.e. purification or separation of hydrocarbons with the aid of solids, e.g. with ion-exchangers
C07C7/12 (Purification: by adsorption, i.e. purification or separation of hydrocarbons with the aid) appears on 1,159 US grants and 980 published applications in this corpus.
Search patents in C07C- Granted patents
- 1,159
- Published applications
- 980
- Assignees
- 374
- Inventors
- 2,207
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 18 | 0 |
| 1977 | 18 | 0 |
| 1978 | 9 | 0 |
| 1979 | 6 | 0 |
| 1980 | 14 | 0 |
| 1981 | 13 | 0 |
| 1982 | 15 | 0 |
| 1983 | 15 | 0 |
| 1984 | 28 | 0 |
| 1985 | 13 | 0 |
| 1986 | 14 | 0 |
| 1987 | 7 | 0 |
| 1988 | 16 | 0 |
| 1989 | 12 | 0 |
| 1990 | 16 | 0 |
| 1991 | 26 | 0 |
| 1992 | 17 | 0 |
| 1993 | 13 | 0 |
| 1994 | 14 | 0 |
| 1995 | 13 | 0 |
| 1996 | 6 | 0 |
| 1997 | 6 | 0 |
| 1998 | 11 | 0 |
| 1999 | 11 | 0 |
| 2000 | 15 | 0 |
| 2001 | 12 | 1 |
| 2002 | 16 | 25 |
| 2003 | 14 | 13 |
| 2004 | 20 | 18 |
| 2005 | 14 | 20 |
| 2006 | 15 | 14 |
| 2007 | 13 | 13 |
| 2008 | 16 | 30 |
| 2009 | 14 | 23 |
| 2010 | 21 | 36 |
| 2011 | 23 | 34 |
| 2012 | 27 | 38 |
| 2013 | 36 | 66 |
| 2014 | 41 | 93 |
| 2015 | 54 | 83 |
| 2016 | 70 | 61 |
| 2017 | 44 | 59 |
| 2018 | 73 | 67 |
| 2019 | 60 | 45 |
| 2020 | 59 | 62 |
| 2021 | 41 | 38 |
| 2022 | 41 | 39 |
| 2023 | 29 | 34 |
| 2024 | 32 | 27 |
| 2025 | 19 | 27 |
| 2026 | 9 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Relating to gas separation30 Jun 2026US 12,667,823 B2University of Limerick
- Process for producing renewable mono-methyl alkylbenzene products9 Jun 2026US 12,649,702 B2Uop LLC
- Oxygen removal from an ethane ODH product stream using ethanol2 Jun 2026US 12,643,841 B2NOVA Chemicals (International) S.A.
- Process for dehydration of normal paraffins to olefins12 May 2026US 12,623,982 B2Uop LLC
- Biogas halogenated volatile organic compound and acid removal systems and methods21 Apr 2026US 12,605,670 B2Stearns, Conrad and Schmidt, Consulting Engineers, Inc.
- Method for treating a fluid, fluid discharge device for a fluid and associated system8 Oct 2026US 2026/0306992 A1
- Gas separation method, method for producing purified gas, and gas separation apparatus8 Oct 2026US 2026/0306996 A1Asahi Kasei Kabushiki Kaisha
- Process for producing renewable mono-methyl alkylbenzene products17 Sep 2026US 2026/0274769 A1Uop LLC
- Production of terpenoids, phenolic compounds, and vitamins from yeast family trichosporonaceae27 Aug 2026US 2026/0250719 A1Technische Universität München
- Sorption-Enhanced Conversion of Oxygenates to Hydrocarbons20 Aug 2026US 2026/0242671 A1Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
Most cited
By later US patents
- Crystalline silica263US 4,061,724 AUnion Carbide Corporation · 1977
- High efficiency continuous separation process212US 4,402,832 AUop LLC · 1983
- Zeolite ITQ-1169US 6,077,498 AConsejo Superior Investigaciones Cientificas · 2000
- Crystalline silicates and method of preparing the same142US 3,941,871 AMobil Oil Corporation · 1976
- Regeneration of adsorbents138US 4,784,672 AAir Products and Chemicals, Inc. · 1988