B01D 53/9431
Processes characterised by a specific device
Official title: {Processes characterised by a specific device}
B01D53/9431 (Processes characterised by a specific device) appears on 1,198 US grants and 1,294 published applications in this corpus.
Search patents in B01D- Granted patents
- 1,198
- Published applications
- 1,294
- Assignees
- 387
- Inventors
- 2,686
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 4 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 5 | 0 |
| 1995 | 6 | 0 |
| 1996 | 3 | 0 |
| 1997 | 8 | 0 |
| 1998 | 15 | 0 |
| 1999 | 18 | 0 |
| 2000 | 17 | 0 |
| 2001 | 29 | 15 |
| 2002 | 32 | 30 |
| 2003 | 39 | 55 |
| 2004 | 36 | 66 |
| 2005 | 42 | 47 |
| 2006 | 33 | 44 |
| 2007 | 23 | 53 |
| 2008 | 21 | 51 |
| 2009 | 28 | 61 |
| 2010 | 37 | 49 |
| 2011 | 42 | 35 |
| 2012 | 53 | 27 |
| 2013 | 38 | 43 |
| 2014 | 40 | 51 |
| 2015 | 47 | 93 |
| 2016 | 57 | 73 |
| 2017 | 71 | 82 |
| 2018 | 63 | 58 |
| 2019 | 73 | 76 |
| 2020 | 69 | 72 |
| 2021 | 67 | 47 |
| 2022 | 40 | 53 |
| 2023 | 49 | 44 |
| 2024 | 48 | 32 |
| 2025 | 21 | 22 |
| 2026 | 11 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Exhaust gas rectifier and exhaust gas purification system1 Sep 2026US 12,723,530 B2Yanmar Holdings Co., Ltd.
- Vapor displacement refueling including data communications, zero gravity and chemical looping combustion system25 Aug 2026US 12,718,682 B2
- Decomposition chamber with guide swirl mixer11 Aug 2026US 12,704,086 B2Cummins Emission Solutions Inc.
- Exhaust system and components thereof28 Jul 2026US 12,692,809 B2ECC TEC MSJ Incorporated
- Doser mount for exhaust aftertreatment system9 Jun 2026US 12,650,089 B2Cummins Emission Solutions Inc.
- Structural body and design method therefor, and liquid droplet atomization system including structural body1 Oct 2026US 2026/0295526 A1Tokai University Educational System
- Exhaust aftertreatment system24 Sep 2026US 2026/0286878 A1Donaldson Company, Inc.
- Exhaust aftertreatment system, an engine system, and methods for controlling operation thereof3 Sep 2026US 2026/0258743 A1Volvo Truck Corporation
- Exhaust system and features thereof27 Aug 2026US 2026/0251080 A1ECC TEC MSJ Incorporated
- Exhaust purification device13 Aug 2026US 2026/0235058 A1Tokyo Roki Co., Ltd.
Most cited
By later US patents
- Method and apparatus for reducing nitrogen oxides from internal combustion engine207US 5,272,871 AKabushiki Kaisha Toyota Chuo Kenkyusho · 1993
- 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
- Staged reductant injection for improved NO.sub.x reduction157US 6,125,629 AEngelhard Corporation · 2000
- NOx decreasing apparatus for an internal combustion engine153US 5,412,946 AKabushiki Kaisha Toyota Chuo Kenkyusho · 1995
- Method and apparatus for emission control148US 6,314,722 B1Matros Technologies, Inc. · 2001