B01D 2257/504
Carbon dioxide
B01D2257/504 (Carbon dioxide) appears on 4,959 US grants and 7,586 published applications in this corpus.
Search patents in B01D- Granted patents
- 4,959
- Published applications
- 7,586
- Assignees
- 2,197
- Inventors
- 12,344
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 14 | 0 |
| 1978 | 7 | 0 |
| 1979 | 3 | 0 |
| 1980 | 7 | 0 |
| 1981 | 9 | 0 |
| 1982 | 8 | 0 |
| 1983 | 7 | 0 |
| 1984 | 14 | 0 |
| 1985 | 8 | 0 |
| 1986 | 8 | 0 |
| 1987 | 12 | 0 |
| 1988 | 22 | 0 |
| 1989 | 14 | 0 |
| 1990 | 17 | 0 |
| 1991 | 13 | 0 |
| 1992 | 21 | 0 |
| 1993 | 11 | 0 |
| 1994 | 4 | 0 |
| 1995 | 6 | 0 |
| 1996 | 15 | 0 |
| 1997 | 22 | 0 |
| 1998 | 25 | 0 |
| 1999 | 41 | 0 |
| 2000 | 30 | 0 |
| 2001 | 30 | 12 |
| 2002 | 34 | 28 |
| 2003 | 44 | 44 |
| 2004 | 27 | 33 |
| 2005 | 19 | 42 |
| 2006 | 23 | 56 |
| 2007 | 25 | 67 |
| 2008 | 27 | 118 |
| 2009 | 48 | 144 |
| 2010 | 84 | 278 |
| 2011 | 107 | 323 |
| 2012 | 167 | 335 |
| 2013 | 239 | 332 |
| 2014 | 268 | 323 |
| 2015 | 230 | 315 |
| 2016 | 266 | 315 |
| 2017 | 260 | 316 |
| 2018 | 255 | 353 |
| 2019 | 274 | 348 |
| 2020 | 272 | 348 |
| 2021 | 252 | 380 |
| 2022 | 302 | 426 |
| 2023 | 325 | 569 |
| 2024 | 382 | 658 |
| 2025 | 373 | 802 |
| 2026 | 283 | 621 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Contactor assembly and sorbent cartridge having sorbent bed for contactor assembly6 Oct 2026US 12,752,232 B2Mosaic Materials, Inc.
- System and method for direct air capture of water and CO26 Oct 2026US 12,752,234 B2Battelle Memorial Institute
- CO2 recovery system and CO2 recovery method6 Oct 2026US 12,752,235 B2Mitsubishi Heavy Industries, Ltd.
- High throughput moving panel direct air capture system6 Oct 2026US 12,752,238 B2Zero Carbon Systems, Inc.
- System and method embodiments for treating produced water using supercritical water desalination coupled with supercritical water oxidation6 Oct 2026US 12,753,101 B1Triad National Security, LLC
- Method and device for separating a carbon dioxide-containing gas by partial condensation and/or distillation and/or solidification8 Oct 2026US 2026/0306989 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Systems and methods for optimizing carbon dioxide capture using sorbents8 Oct 2026US 2026/0306990 A1GE Vernova Infrastructure Technology LLC
- Systems and methods for optimizing carbon dioxide capture using water vapor adsorption8 Oct 2026US 2026/0306991 A1GE Vernova Infrastructure Technology LLC
- Method for treating a fluid, fluid discharge device for a fluid and associated system8 Oct 2026US 2026/0306992 A1
- Systems for optimizing carbon dioxide capture8 Oct 2026US 2026/0306993 A1GE Vernova Infrastructure Technology LLC
Most cited
By later US patents
- Microcomponent assembly for efficient contacting of fluid191US 6,126,723 ABattelle Memorial Institute · 2000
- High frequency pressure swing adsorption186US 6,176,897 B1Questor Industries Inc. · 2001
- High temperature fuel cell power plant165US 7,097,925 B2QuestAir Technologies Inc. · 2006
- Removal of water and carbon dioxide from atmospheric air159US 4,711,645 AAir Products and Chemicals, Inc. · 1987
- Carbon dioxide pressure swing adsorption process using modified alumina adsorbents155US 5,917,136 AAir Products and Chemicals, Inc. · 1999