C07C 7/11
Purification: by absorption, i.e. purification or separation of gaseous hydrocarbons with the
Official title: by absorption, i.e. purification or separation of gaseous hydrocarbons with the aid of liquids
C07C7/11 (Purification: by absorption, i.e. purification or separation of gaseous hydrocarbons with the) appears on 353 US grants and 305 published applications in this corpus.
Search patents in C07C- Granted patents
- 353
- Published applications
- 305
- Assignees
- 172
- Inventors
- 911
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 7 | 0 |
| 1978 | 6 | 0 |
| 1979 | 5 | 0 |
| 1980 | 4 | 0 |
| 1981 | 6 | 0 |
| 1982 | 8 | 0 |
| 1983 | 9 | 0 |
| 1984 | 9 | 0 |
| 1985 | 18 | 0 |
| 1986 | 9 | 0 |
| 1987 | 12 | 0 |
| 1988 | 8 | 0 |
| 1989 | 8 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 7 | 0 |
| 1997 | 1 | 0 |
| 1998 | 5 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 1 |
| 2003 | 2 | 2 |
| 2004 | 0 | 3 |
| 2005 | 1 | 6 |
| 2006 | 2 | 3 |
| 2007 | 3 | 4 |
| 2008 | 5 | 4 |
| 2009 | 1 | 2 |
| 2010 | 1 | 5 |
| 2011 | 3 | 3 |
| 2012 | 3 | 8 |
| 2013 | 6 | 16 |
| 2014 | 11 | 21 |
| 2015 | 10 | 23 |
| 2016 | 15 | 25 |
| 2017 | 17 | 25 |
| 2018 | 22 | 25 |
| 2019 | 33 | 22 |
| 2020 | 16 | 20 |
| 2021 | 14 | 20 |
| 2022 | 16 | 15 |
| 2023 | 6 | 19 |
| 2024 | 6 | 12 |
| 2025 | 10 | 11 |
| 2026 | 9 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Process for treating a gas stream from plastic pyrolisis and/or biomass pyrolisis, and installation for integration into a steam cracker11 Aug 2026US 12,703,671 B2Technip Energies France
- Apparatus and process for removal of heavy hydrocarbons from a feed gas11 Aug 2026US 12,703,831 B2Honeywell Lng LLC
- Reactor system for acetylene absorption and selective hydrogenation30 Jun 2026US 12,668,558 B2Chevron U.S.A.Inc.
- Membrane-based separation processes enhanced with an absorption device23 Jun 2026US 12,662,437 B2ExxonMobil Chemical Patents Inc.
- Method for upgrading bio-based material and upgraded material26 May 2026US 12,637,623 B2Neste Oyj
- Binary polyethyleneimine emulsion breaker compositions for ethylene plant quench water systems24 Sep 2026US 2026/0285785 A1Ecolab USA Inc.
- Reactor system for acetylene absorption and selective hydrogenation10 Sep 2026US 2026/0265164 A1Chevron U.S.A.Inc.
- Method for upgrading bio-based material and upgraded material10 Sep 2026US 2026/0265614 A1Neste Oyj
- Method for purifying isopropyl alcohol20 Aug 2026US 2026/0242316 A1LG Chem.Ltd.
- Contaminant removal systems4 Jun 2026US 2026/0151728 A1Honeywell International Inc.
Most cited
By later US patents
- Process for recovering helium from a gas stream99US 5,224,350 AAdvanced Extraction Technologies, Inc. · 1993
- Absorption process without external solvent97US 5,462,583 AAdvanced Extraction Technologies, Inc. · 1995
- Process for separating nitrogen from methane using microchannel process technology86US 7,250,074 B2Velocys, Inc. · 2007
- Process for recovery of natural gas liquids from a sweetened natural gas stream76US 4,421,535 AEl Paso Hydrocarbons Company · 1983
- Removal of mercury from gas streams using hydrogen sulfide and amines69US 4,044,098 APhillips Petroleum Company · 1977