Y02P 20/151
Reduction of greenhouse gas [ghg] emissions
Official title: Reduction of greenhouse gas [GHG] emissions, e.g. CO2
Y02P20/151 (Reduction of greenhouse gas [ghg] emissions) appears on 1,937 US grants and 2,130 published applications in this corpus.
Search patents in Y02P- Granted patents
- 1,937
- Published applications
- 2,130
- Assignees
- 950
- Inventors
- 4,592
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 12 | 0 |
| 1978 | 13 | 0 |
| 1979 | 5 | 0 |
| 1980 | 14 | 0 |
| 1981 | 17 | 0 |
| 1982 | 15 | 0 |
| 1983 | 19 | 0 |
| 1984 | 22 | 0 |
| 1985 | 22 | 0 |
| 1986 | 10 | 0 |
| 1987 | 16 | 0 |
| 1988 | 28 | 0 |
| 1989 | 14 | 0 |
| 1990 | 11 | 0 |
| 1991 | 15 | 0 |
| 1992 | 16 | 0 |
| 1993 | 9 | 0 |
| 1994 | 9 | 0 |
| 1995 | 7 | 0 |
| 1996 | 9 | 0 |
| 1997 | 12 | 0 |
| 1998 | 12 | 0 |
| 1999 | 23 | 0 |
| 2000 | 19 | 0 |
| 2001 | 23 | 6 |
| 2002 | 20 | 29 |
| 2003 | 35 | 26 |
| 2004 | 16 | 30 |
| 2005 | 13 | 24 |
| 2006 | 18 | 33 |
| 2007 | 16 | 45 |
| 2008 | 17 | 64 |
| 2009 | 24 | 75 |
| 2010 | 56 | 134 |
| 2011 | 49 | 129 |
| 2012 | 65 | 150 |
| 2013 | 109 | 120 |
| 2014 | 103 | 136 |
| 2015 | 89 | 143 |
| 2016 | 116 | 126 |
| 2017 | 119 | 121 |
| 2018 | 104 | 120 |
| 2019 | 106 | 105 |
| 2020 | 101 | 111 |
| 2021 | 83 | 119 |
| 2022 | 76 | 84 |
| 2023 | 81 | 103 |
| 2024 | 67 | 44 |
| 2025 | 46 | 37 |
| 2026 | 27 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- 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.
- Steel mill offgas separation and purification18 Aug 2026US 12,708,874 B2Air Products and Chemicals, Inc.
- System and method for conditioning syngas and capturing carbon dioxide from conditioned syngas for production of power, chemicals, and other value added products11 Aug 2026US 12,702,950 B2Dastur Energy, Inc.
- Direct capture of CO2 from air and point sources14 Jul 2026US 12,678,727 B2ExxonMobil Technology and Engineering Company
- Process for capture and conversion of carbon dioxide13 Aug 2026US 2026/0233155 A1The Governors of the University of Alberta
- Process for producing a carbon product and carbon fibers through a carbon neutral or carbon negative process13 Aug 2026US 2026/0233165 A1Carbon Utility LLC
- Systems and methods for e-methanol production30 Jul 2026US 2026/0217633 A1Saudi Arabian Oil Company
- Method for producing calcium carbonate from a flue gas16 Jul 2026US 2026/0200752 A1Nan Ya Plastics Corporation
- Integrated zeolite membrane-reactor and adsorption process for co2 capture and conversion to methanol9 Jul 2026US 2026/0192237 A1
Most cited
By later US patents
- Methanol plant retrofit for acetic acid manufacture208US 6,232,352 B1Acetex limited · 2001
- Microcomponent assembly for efficient contacting of fluid191US 6,126,723 ABattelle Memorial Institute · 2000
- Removal of CO.sub.2 and/or H.sub.2 S and/or COS from gases containing these constituents172US 4,336,233 ABASF SE · 1982
- High temperature fuel cell power plant165US 7,097,925 B2QuestAir Technologies Inc. · 2006
- Carbon dioxide recovery156US 4,762,543 AAmoco Corporation · 1988