Y02P 20/156
Methane [ch4]
Official title: Methane [CH4]
Y02P20/156 (Methane [ch4]) appears on 135 US grants and 105 published applications in this corpus.
Search patents in Y02P- Granted patents
- 135
- Published applications
- 105
- Assignees
- 79
- Inventors
- 358
- Latest grant
- 26 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 4 | 0 |
| 1988 | 6 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 5 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 1 |
| 2003 | 3 | 3 |
| 2004 | 2 | 0 |
| 2005 | 1 | 2 |
| 2006 | 1 | 0 |
| 2007 | 0 | 3 |
| 2008 | 1 | 0 |
| 2009 | 0 | 2 |
| 2010 | 1 | 1 |
| 2011 | 0 | 3 |
| 2012 | 2 | 8 |
| 2013 | 5 | 5 |
| 2014 | 3 | 7 |
| 2015 | 7 | 8 |
| 2016 | 9 | 7 |
| 2017 | 6 | 7 |
| 2018 | 4 | 13 |
| 2019 | 9 | 10 |
| 2020 | 10 | 9 |
| 2021 | 7 | 7 |
| 2022 | 3 | 5 |
| 2023 | 6 | 2 |
| 2024 | 4 | 1 |
| 2025 | 2 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Method for electrochemical hydrogen separation from natural-gas pipelines26 Aug 2025US 12,397,261 B2BASF Catalysts Germany GmbH
- Method for adjusting an oxygen production unit with different set points for each adsorber29 Jul 2025US 12,370,491 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Sulfur-doped carbonaceous porous materials3 Sep 2024US 12,076,704 B2The University of Liverpool
- Adsorption and desorption apparatus13 Aug 2024US 12,059,646 B2Commonwealth Scientific and Industrial Research Organisation
- Functionalization of zeolites5 Mar 2024US 11,918,974 B2The Regents of the University of Colorado
- Hydrogen purification devices27 Feb 2025US 2025/0065260 A1Element 1 Corp.
- A process for separating h2 from a gas mixture7 Mar 2024US 2024/0075423 A1BASF SE
- Sulfur-doped carbonaceous porous materials29 Jun 2023US 2023/0201796 A1The University of Liverpool
- Method for electrochemical hydrogen separation from natural-gas pipelines13 Apr 2023US 2023/0111285 A1BASF SE
- Improvements relating to gas separation10 Nov 2022US 2022/0355268 A1University of Limerick
Most cited
By later US patents
- Selective adsorption process139US 3,986,849 AUnion Carbide Corporation · 1976
- Process for separating components of a gas stream137US 4,701,187 AAir Products and Chemicals, Inc. · 1987
- Hydrogen purification by selective adsorption111US 4,077,779 AAir Products and Chemicals, Inc. · 1978
- PSA multicomponent separation utilizing tank equalization101US 4,816,039 AThe BOC Group, Inc. · 1989
- Separation of gas mixtures including hydrogen88US 5,234,472 AThe BOC Group, Inc. · 1993