F01N 3/037
By means of inertial or centrifugal separators
Official title: by means of inertial or centrifugal separators, e.g. of cyclone type, optionally combined or associated with agglomerators
F01N3/037 (By means of inertial or centrifugal separators) appears on 141 US grants and 83 published applications in this corpus.
Search patents in F01N- Granted patents
- 141
- Published applications
- 83
- Assignees
- 95
- Inventors
- 261
- Latest grant
- 25 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 3 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 5 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 5 | 0 |
| 1994 | 1 | 0 |
| 1995 | 4 | 0 |
| 1996 | 5 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 2 | 4 |
| 2003 | 3 | 6 |
| 2004 | 4 | 5 |
| 2005 | 2 | 6 |
| 2006 | 2 | 2 |
| 2007 | 5 | 6 |
| 2008 | 2 | 9 |
| 2009 | 2 | 2 |
| 2010 | 6 | 0 |
| 2011 | 2 | 1 |
| 2012 | 4 | 8 |
| 2013 | 1 | 2 |
| 2014 | 1 | 4 |
| 2015 | 5 | 6 |
| 2016 | 3 | 5 |
| 2017 | 3 | 0 |
| 2018 | 4 | 3 |
| 2019 | 4 | 1 |
| 2020 | 5 | 2 |
| 2021 | 3 | 4 |
| 2022 | 1 | 1 |
| 2023 | 6 | 3 |
| 2024 | 3 | 1 |
| 2025 | 4 | 0 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Diesel engine exhaust gas recirculation system for NO.sub.x control incorporating a compressed air regenerative particulate control system76US 5,426,936 ACeraMem Corporation · 1995
- Methods for reducing harmful emissions from a diesel engine61US 6,003,303 AClean Diesel Technologies, Inc. · 1999
- Operation of diesel engines with reduced particulate emission by utilization of platinum group metal fuel additive and pass-through catalytic oxidizer57US 5,501,714 APlatinum Plus, Inc. · 1996
- Method for catalyzing fuel for powering internal combustion engines51US 5,034,020 APlatinum Plus, Inc. · 1991
- Open end diesel particulate trap47US 6,835,224 B2General Motors Corporation · 2004