B01D 2256/24
Hydrocarbons
B01D2256/24 (Hydrocarbons) appears on 1,727 US grants and 2,152 published applications in this corpus.
Search patents in B01D- Granted patents
- 1,727
- Published applications
- 2,152
- Assignees
- 770
- Inventors
- 4,182
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 7 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 6 | 0 |
| 1982 | 8 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 4 | 0 |
| 1986 | 6 | 0 |
| 1987 | 5 | 0 |
| 1988 | 6 | 0 |
| 1989 | 6 | 0 |
| 1990 | 9 | 0 |
| 1991 | 4 | 0 |
| 1992 | 9 | 0 |
| 1993 | 6 | 0 |
| 1994 | 5 | 0 |
| 1995 | 6 | 0 |
| 1996 | 7 | 0 |
| 1997 | 5 | 0 |
| 1998 | 4 | 0 |
| 1999 | 8 | 0 |
| 2000 | 12 | 0 |
| 2001 | 15 | 1 |
| 2002 | 15 | 7 |
| 2003 | 11 | 14 |
| 2004 | 4 | 9 |
| 2005 | 2 | 15 |
| 2006 | 7 | 12 |
| 2007 | 10 | 9 |
| 2008 | 7 | 31 |
| 2009 | 10 | 27 |
| 2010 | 15 | 58 |
| 2011 | 19 | 51 |
| 2012 | 40 | 81 |
| 2013 | 56 | 65 |
| 2014 | 54 | 101 |
| 2015 | 68 | 104 |
| 2016 | 81 | 169 |
| 2017 | 108 | 136 |
| 2018 | 130 | 206 |
| 2019 | 160 | 158 |
| 2020 | 131 | 157 |
| 2021 | 114 | 157 |
| 2022 | 138 | 135 |
| 2023 | 115 | 127 |
| 2024 | 124 | 134 |
| 2025 | 106 | 112 |
| 2026 | 51 | 76 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Gas separation system and method for producing methane-enriched gas15 Sep 2026US 12,734,474 B2Ube Corporation
- Dehydrogenation and pyrolysis product recovery with heat integration8 Sep 2026US 12,728,378 B2Uop LLC
- System and method for separating a gas mixture25 Aug 2026US 12,714,968 B2Haffmans B.V.
- Gas separation membrane, and preparation method therefor and use thereof25 Aug 2026US 12,714,972 B2Changshu 3F Zhonghao New Chemical Materials Co., Ltd.
- Processes and systems for upgrading a hydrocarbon25 Aug 2026US 12,716,038 B2ExxonMobil Chemical Patents 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
- Systems and methods for using facilitated transport membranes to separate olefins and paraffins8 Oct 2026US 2026/0308087 A1
- Integration of fuel cell system and co2 capture unit for hydrogen production8 Oct 2026US 2026/0312105 A1Uop LLC
- Co2 separation system1 Oct 2026US 2026/0298533 A1National Institute for Materials Science National Institute for Materials Science
Most cited
By later US patents
- Process for purifying a gas by adsorption of the impurities on several active carbons147US 6,402,813 B2L 'Air Liquide-Societe 'Anonyme a 'Directoire et Conseil de Surveillance pour l 'Etude et L'Exploitation des Procedes Georges Claude · 2002
- Regeneration of adsorbents138US 4,784,672 AAir Products and Chemicals, Inc. · 1988
- Process for separating components of a gas stream137US 4,701,187 AAir Products and Chemicals, Inc. · 1987
- Recovery of methane from land fill gas136US 4,770,676 AAir Products and Chemicals, Inc. · 1988
- Heavy hydrocarbon recovery from pressure swing adsorption unit tail gas134US 6,610,124 B1Engelhard Corporation · 2003