B01D 53/9495
Controlling the catalytic process
Official title: {Controlling the catalytic process}
B01D53/9495 (Controlling the catalytic process) appears on 1,327 US grants and 1,206 published applications in this corpus.
Search patents in B01D- Granted patents
- 1,327
- Published applications
- 1,206
- Assignees
- 313
- Inventors
- 2,501
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 7 | 0 |
| 1995 | 20 | 0 |
| 1996 | 12 | 0 |
| 1997 | 14 | 0 |
| 1998 | 35 | 0 |
| 1999 | 37 | 0 |
| 2000 | 44 | 0 |
| 2001 | 51 | 16 |
| 2002 | 39 | 35 |
| 2003 | 37 | 46 |
| 2004 | 41 | 56 |
| 2005 | 33 | 41 |
| 2006 | 35 | 33 |
| 2007 | 24 | 40 |
| 2008 | 15 | 42 |
| 2009 | 28 | 61 |
| 2010 | 41 | 74 |
| 2011 | 36 | 32 |
| 2012 | 57 | 26 |
| 2013 | 57 | 52 |
| 2014 | 47 | 57 |
| 2015 | 64 | 81 |
| 2016 | 53 | 45 |
| 2017 | 55 | 80 |
| 2018 | 54 | 89 |
| 2019 | 91 | 82 |
| 2020 | 80 | 46 |
| 2021 | 56 | 32 |
| 2022 | 37 | 31 |
| 2023 | 31 | 36 |
| 2024 | 47 | 40 |
| 2025 | 19 | 15 |
| 2026 | 9 | 18 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Exhaust gas aftertreatment system with two SCR catalysts29 Sep 2026US 12,747,686 B1FEV Group GmbH
- Exhaust system and components thereof28 Jul 2026US 12,692,809 B2ECC TEC MSJ Incorporated
- Systems and methods for controlling tailpipe exhaust emissions14 Jul 2026US 12,680,490 B2Cummins Inc.
- Performance enhancement of a platinum-containing catalyst via exhaust gas hydrogen enrichment16 Jun 2026US 12,654,160 B2BASF Mobile Emissions Catalysts LLC
- Emission treatment catalysts, systems and methods26 May 2026US 12,636,613 B2BASF Mobile Emissions Catalysts LLC
- Control method of aftertreatment system, control program, aftertreatment system, and engine system1 Oct 2026US 2026/0295529 A1Yanmar Holdings Co., Ltd.
- Exhaust gas aftertreatment system with two scr catalysts1 Oct 2026US 2026/0298123 A1FEV Group GmbH
- Systems and methods for controlling tailpipe exhaust emissions1 Oct 2026US 2026/0298125 A1Cummins Inc.
- Exhaust aftertreatment system, an engine system, and methods for controlling operation thereof3 Sep 2026US 2026/0258743 A1Volvo Truck Corporation
- Systems and methods for diesel oxidation catalyst aging prognostics and diagnosis27 Aug 2026US 2026/0249244 A1Cummins Inc.
Most cited
By later US patents
- Exhaust gas purification device for an internal combustion engine197US 5,974,791 AToyota Jidosha Kabushiki Kaisha · 1999
- Apparatus and method for internal combustion engine control173US 5,657,625 AMitsubishi Jidosha Kogyo Kabushiki Kaisha · 1997
- Reducing no.sub.x emissions from an engine by temperature-controlled urea injection for selective catalytic reduction171US 6,063,350 AClean Diesel Technologies, Inc. · 2000
- Low emission, diesel-cycle engine158US 6,470,682 B2The United States of America as represented by the Administrator of the United States Environmental Protection Agency · 2002
- Staged reductant injection for improved NO.sub.x reduction157US 6,125,629 AEngelhard Corporation · 2000