F01N 3/0215
The filtering elements having the form of disks or plates
Official title: {the filtering elements having the form of disks or plates}
F01N3/0215 (The filtering elements having the form of disks or plates) appears on 54 US grants and 45 published applications in this corpus.
Search patents in F01N- Granted patents
- 54
- Published applications
- 45
- Assignees
- 52
- Inventors
- 137
- Latest grant
- 22 Oct 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 8 | 0 |
| 1991 | 5 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 2 |
| 2002 | 1 | 1 |
| 2003 | 2 | 2 |
| 2004 | 1 | 0 |
| 2005 | 1 | 4 |
| 2006 | 0 | 3 |
| 2007 | 3 | 4 |
| 2008 | 0 | 5 |
| 2009 | 0 | 0 |
| 2010 | 2 | 0 |
| 2011 | 2 | 1 |
| 2012 | 2 | 2 |
| 2013 | 0 | 4 |
| 2014 | 3 | 1 |
| 2015 | 1 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 2 |
| 2018 | 0 | 3 |
| 2019 | 1 | 1 |
| 2020 | 4 | 3 |
| 2021 | 2 | 3 |
| 2022 | 1 | 1 |
| 2023 | 1 | 1 |
| 2024 | 1 | 0 |
| 2025 | 0 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Pollutant filtering assembly22 Oct 2024US 12,121,841 B2
- Diesel particulate filtration (DPF) system3 Oct 2023US 11,772,079 B2South Bank University Enterprises Ltd.
- Internal combustion engine exhaust modification system15 Mar 2022US 11,274,583 B1Sonix Enterprises Inc.
- Emission reducing louvers27 Apr 2021US 10,989,075 B2Mitsubishi Power Americas, Inc.
- Carbon cutter machine30 Mar 2021US 10,961,885 B2
- Exhaust treatment system, method for treatment of an exhaust stream and control system therefore23 Jul 2026US 2026/0210278 A1Scania CV AB
- Exhaust gas treatment device and small combustion installation equipped therewith27 Feb 2025US 2025/0065267 A1Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- Pollutant Filtering Assembly14 Sep 2023US 2023/0285886 A1
- Constructive arrangement applied in air diffuser for combustion engines6 Jan 2022US 2022/0003150 A1Nelymeire De Paula - ME
- Diesel Particulate Filtration (DPF) System2 Dec 2021US 2021/0370275 A9South Bank University Enterprises Ltd.
Most cited
By later US patents
- Method of filtering particles from a flue gas, a flue gas filter means and a vehicle65US 5,497,620 A1996
- Regenerable diesel exhaust filter and heater53US 5,457,945 APall Corporation · 1995
- Ceramic foam prefilter for diesel exhaust filter system46US 5,053,062 ADonaldson Company, Inc. · 1991
- Exhaust gas cleaner44US 5,141,714 ARiken · 1992
- Apparatus for the purification of exhaust gas from diesel motors42US 4,900,517 ADegussa AG · 1990