C01B 32/50
Carbon dioxide
C01B32/50 (Carbon dioxide) appears on 1,009 US grants and 1,363 published applications in this corpus.
Search patents in C01B- Granted patents
- 1,009
- Published applications
- 1,363
- Assignees
- 721
- Inventors
- 2,997
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 6 | 0 |
| 1978 | 18 | 0 |
| 1979 | 3 | 0 |
| 1980 | 0 | 0 |
| 1981 | 5 | 0 |
| 1982 | 6 | 0 |
| 1983 | 15 | 0 |
| 1984 | 9 | 0 |
| 1985 | 12 | 0 |
| 1986 | 6 | 0 |
| 1987 | 11 | 0 |
| 1988 | 13 | 0 |
| 1989 | 7 | 0 |
| 1990 | 7 | 0 |
| 1991 | 9 | 0 |
| 1992 | 7 | 0 |
| 1993 | 8 | 0 |
| 1994 | 6 | 0 |
| 1995 | 11 | 0 |
| 1996 | 7 | 0 |
| 1997 | 8 | 0 |
| 1998 | 10 | 0 |
| 1999 | 6 | 0 |
| 2000 | 10 | 0 |
| 2001 | 12 | 2 |
| 2002 | 8 | 9 |
| 2003 | 12 | 17 |
| 2004 | 12 | 13 |
| 2005 | 7 | 13 |
| 2006 | 7 | 12 |
| 2007 | 6 | 24 |
| 2008 | 8 | 19 |
| 2009 | 7 | 18 |
| 2010 | 12 | 32 |
| 2011 | 10 | 44 |
| 2012 | 19 | 31 |
| 2013 | 38 | 37 |
| 2014 | 20 | 54 |
| 2015 | 35 | 74 |
| 2016 | 39 | 58 |
| 2017 | 50 | 73 |
| 2018 | 57 | 66 |
| 2019 | 50 | 54 |
| 2020 | 39 | 60 |
| 2021 | 52 | 78 |
| 2022 | 62 | 102 |
| 2023 | 67 | 116 |
| 2024 | 70 | 146 |
| 2025 | 60 | 137 |
| 2026 | 43 | 74 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- System for preparing isotope-labeled carbon dioxide and method therefor6 Oct 2026US 12,753,080 B2Institute of Process Engineering, Chinese Academy of Sciences
- Leaktight and thermally insulating vessel, and associated method for placing under vacuum15 Sep 2026US 12,736,181 B2Gaztransport Et Technigaz
- Method and device for producing energy products by catalytically cracking a solid hydrocarbon material without coke formation1 Sep 2026US 12,723,200 B2DMS Co., Ltd.
- Integrated carbon sequestration and power generation system and methods of use1 Sep 2026US 12,723,540 B2Arbor Energy and Resources Corporation
- Systems and methods for controllable synthesis of energetic nanocomposites18 Aug 2026US 12,709,586 B2
- Carbon dioxide adsorption battery, charge/discharge device, and carbon dioxide concentration device8 Oct 2026US 2026/0307004 A1Kuraray Co., Ltd.
- Carbon dioxide reaction device1 Oct 2026US 2026/0296896 A1Yueqing Wanyin Aquarium Equipment Co., Ltd
- Cleaning of co2 containing feed gases24 Sep 2026US 2026/0285689 A1Topsoe A/S
- Cleaning of co2 containing feed gases24 Sep 2026US 2026/0285690 A1Topsoe A/S
- Coupled supercritical fluid - carbon capture apparatus and method of use thereof24 Sep 2026US 2026/0285782 A1
Most cited
By later US patents
- Integrated flameless distributed combustion/steam reforming membrane reactor for hydrogen production and use thereof in zero emissions hybrid power system186US 6,821,501 B2Shell Oil Company · 2004
- Carbon dioxide recovery156US 4,762,543 AAmoco Corporation · 1988
- Distillative separations of gas mixtures containing methane, carbon dioxide and other components129US 4,462,814 AKoch Process Systems, Inc. · 1984
- Method and apparatus for extracting carbon dioxide from air125US 7,708,806 B2Global Research Technologies, LLC · 2010
- Method for the fixation of carbon dioxide118US 5,364,611 AMitsubishi Jukogyo Kabushiki Kaisha · 1994