F01N 3/0218
The filtering elements being made from spirally-wound filtering material
Official title: {the filtering elements being made from spirally-wound filtering material}
F01N3/0218 (The filtering elements being made from spirally-wound filtering material) appears on 29 US grants and 19 published applications in this corpus.
Search patents in F01N- Granted patents
- 29
- Published applications
- 19
- Assignees
- 21
- Inventors
- 57
- Latest grant
- 13 Sep 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 5 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 0 | 1 |
| 2003 | 0 | 1 |
| 2004 | 1 | 1 |
| 2005 | 0 | 3 |
| 2006 | 0 | 0 |
| 2007 | 2 | 2 |
| 2008 | 1 | 0 |
| 2009 | 1 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 2 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 1 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 1 |
| 2020 | 0 | 1 |
| 2021 | 1 | 1 |
| 2022 | 2 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Catalyst having a metal honeycomb body13 Sep 2022US 11,441,469 B2Vitesco Technologies GmbH
- Catalytic converter for an internal combustion engine and method for operating a catalytic converter7 Jun 2022US 11,352,929 B2Dr. Ing. h,c.F. Porsche Aktiengesellschaft
- Filtering media member for filtering particulate matter in a fluid stream21 Sep 2021US 11,123,675 B2DCL International Inc.
- Audio preview of music18 Jun 2019US 10,327,041 B2Apple Inc.
- Audio preview of music29 Aug 2017US 9,749,709 B2Apple Inc.
- Method for improving the coating of a honeycomb body with a catalytically active coating14 Nov 2024US 2024/0375094 A1Vitesco Technologies GmbH
- Catalyst having a metal honeycomb body17 Jun 2021US 2021/0178379 A1Vitesco Technologies GmbH
- Catalytic converter for an internal combustion engine and method for operating a catalytic converter6 Aug 2020US 2020/0248601 A1Dr. Ing. h,c.F. Porsche Aktiengesellschaft
- Filtering media member for filtering particulate matter in a fluid stream24 Jan 2019US 2019/0022569 A1DCL International Inc.
- Audio preview of music14 Dec 2017US 2017/0359629 A1Apple Inc.
Most cited
By later US patents
- Exhaust gas filter147US 4,652,286 AMatsushita Electric Industrial Co., Ltd. · 1987
- Diesel particulate filter element and filter74US 5,298,046 AMinnesota Mining and Manufacturing Company · 1994
- Filter for gases57US 5,009,857 ASchwaebische Huettenwerke GmbH · 1991
- Regenerable filter for exhaust gases of an internal-combustion engine51US 5,207,807 AIveco Fiat S.p.A. · 1993
- Particulate trap for purifying diesel engine exhaust46US 5,458,664 ASumitomo Electric Industries, Ltd. · 1995