B01D 53/8643
Removing mixtures of carbon monoxide or hydrocarbons and nitrogen oxides
Official title: {Removing mixtures of carbon monoxide or hydrocarbons and nitrogen oxides}
B01D53/8643 (Removing mixtures of carbon monoxide or hydrocarbons and nitrogen oxides) appears on 201 US grants and 198 published applications in this corpus.
Search patents in B01D- Granted patents
- 201
- Published applications
- 198
- Assignees
- 167
- Inventors
- 572
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 5 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 8 | 0 |
| 1997 | 0 | 0 |
| 1998 | 6 | 0 |
| 1999 | 6 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 2 |
| 2002 | 3 | 7 |
| 2003 | 3 | 7 |
| 2004 | 4 | 8 |
| 2005 | 3 | 6 |
| 2006 | 1 | 6 |
| 2007 | 3 | 8 |
| 2008 | 6 | 6 |
| 2009 | 6 | 8 |
| 2010 | 8 | 10 |
| 2011 | 9 | 11 |
| 2012 | 10 | 6 |
| 2013 | 5 | 4 |
| 2014 | 8 | 12 |
| 2015 | 9 | 10 |
| 2016 | 4 | 8 |
| 2017 | 5 | 13 |
| 2018 | 13 | 11 |
| 2019 | 5 | 6 |
| 2020 | 8 | 17 |
| 2021 | 7 | 9 |
| 2022 | 10 | 8 |
| 2023 | 11 | 7 |
| 2024 | 6 | 4 |
| 2025 | 4 | 1 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Three-way conversion catalyst composition comprising platinum-rhodium bimetallic components11 Aug 2026US 12,702,968 B2BASF Mobile Emissions Catalysts LLC
- Methane combustion catalyst, method for producing the same and method for purifying combustion exhaust gas20 Jan 2026US 12,528,075 B2Tanaka Kikinzoku Kogyo K.K.
- Noxious gas purificant and its preparation and purification method thereof25 Nov 2025US 12,478,945 B2
- Device system and method having sintering flue gas CO catalytic heat exchange and medium-and-low-temperature SCR denitration connected in series20 May 2025US 12,303,828 B2Institute of Process Engineering, Chinese Academy of Sciences
- Cerium-zirconium-aluminum-based composite material, cGPF catalyst and preparation method therefor1 Apr 2025US 12,264,106 B2Sinotech PLC, L.L.C.
- Process for removing nitric oxide, nitrous oxide and carbon monoxide from a gas stream30 Jul 2026US 2026/0216642 A1BASF SE
- Nh3-scr denitration system and method for synergistic purification of co21 May 2026US 2026/0138087 A1Institute of Process Engineering, Chinese Academy of Sciences
- Catalyst for synergistic removal of nitrogen oxides and co as well as preparation method and use thereof29 Jan 2026US 2026/0027560 A1Zhejiang University
- Batch-type complex temperature treatment machine using high-temperature plasma, and method for treating exhaust gas thereof17 Apr 2025US 2025/0121327 A1Vitzro Nextech Co., LTD.
- Device system and method having sintering flue gas co catalytic heat exchange and medium-and-low-temperature scr denitration connected in series19 Dec 2024US 2024/0416276 A1Institute of Process Engineering, Chinese Academy of Sciences
Most cited
By later US patents
- Thermally enhanced compact reformer179US 5,858,314 AZtek Corporation · 1999
- Catalytic system for the reducton of nitrogen oxides100US 5,589,147 AMobil Oil Corporation · 1996
- Process and device for the catalytic cleaning of the exhaust gas from a combustion plant84US 6,444,177 B1Siemens Aktiengesellschaft · 2002
- Catalytic abatement system78US 4,054,418 AE. I. Du Pont de Nemours and Company · 1977
- Layered catalyst composite76US 6,764,665 B2Engelhard Corporation · 2004