B01D 2256/20
Carbon monoxide
B01D2256/20 (Carbon monoxide) appears on 227 US grants and 284 published applications in this corpus.
Search patents in B01D- Granted patents
- 227
- Published applications
- 284
- Assignees
- 146
- Inventors
- 715
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 6 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 5 | 0 |
| 2001 | 5 | 2 |
| 2002 | 5 | 0 |
| 2003 | 3 | 6 |
| 2004 | 1 | 0 |
| 2005 | 3 | 3 |
| 2006 | 2 | 1 |
| 2007 | 1 | 1 |
| 2008 | 0 | 2 |
| 2009 | 1 | 6 |
| 2010 | 1 | 7 |
| 2011 | 2 | 5 |
| 2012 | 9 | 12 |
| 2013 | 3 | 15 |
| 2014 | 7 | 15 |
| 2015 | 8 | 7 |
| 2016 | 8 | 23 |
| 2017 | 17 | 11 |
| 2018 | 14 | 18 |
| 2019 | 16 | 22 |
| 2020 | 13 | 17 |
| 2021 | 14 | 22 |
| 2022 | 11 | 26 |
| 2023 | 15 | 24 |
| 2024 | 15 | 16 |
| 2025 | 11 | 11 |
| 2026 | 9 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method and system for separating a gas mixture25 Aug 2026US 12,714,965 B2Linde Aktiengesellschaft
- High recovery process for purification of multicomponent gases30 Jun 2026US 12,667,803 B2Praxair Technology, Inc.
- GIS-type zeolite formed body, adsorption apparatus, separation method, and GIS-type zeolite16 Jun 2026US 12,654,149 B2Asahi Kasei Kabushiki Kaisha
- Method for generating carbon monoxide, method for producing precursor, and material for chemical looping system26 May 2026US 12,637,355 B2Eneos Corporation
- Process and plant for producing methanol and ammonia26 May 2026US 12,637,357 B2L'Air Liquide, Societe Anonyme Pour l'Etude et l'Exploitation des Procedes
- Integration of fuel cell system and co2 capture unit for hydrogen production8 Oct 2026US 2026/0312105 A1Uop LLC
- Generation and utilization of ammoniated water in gasification1 Oct 2026US 2026/0297445 A1SunGas Renewables, Inc.
- Methanol Production System that Reuses Unreacted Gas for Efficient Methanol Production10 Sep 2026US 2026/0264037 A1Doosan Enerbility Co., Ltd.
- Selective carbon monoxide uptake by porous materials with metal carbanions30 Jul 2026US 2026/0217751 A1The Regents of the University of California
- Electrolyzer Loop Augmentation for Chemical Production Line with Carbon Monoxide Tail Gas18 Jun 2026US 2026/0168119 A1Dioxycle
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
- Separation of a sour syngas stream136US 8,268,044 B2Air Products and Chemicals, Inc. · 2012
- Production of hydrogen and carbon monoxide106US 4,861,351 AAir Products and Chemicals, Inc. · 1989
- Hydrogen and carbon monoxide production by hydrocarbon steam reforming and pressure swing adsorption purification92US 5,096,470 AThe BOC Group, Inc. · 1992
- Separation of gas mixtures including hydrogen88US 5,234,472 AThe BOC Group, Inc. · 1993