F01N 2330/20
Plastics
Official title: Plastics, e.g. polymers, polyester, polyurethane
F01N2330/20 (Plastics) appears on 33 US grants and 26 published applications in this corpus.
Search patents in F01N- Granted patents
- 33
- Published applications
- 26
- Assignees
- 22
- Inventors
- 89
- Latest grant
- 25 Mar 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 2 |
| 2004 | 0 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 0 | 2 |
| 2010 | 1 | 2 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 1 |
| 2014 | 0 | 1 |
| 2015 | 3 | 0 |
| 2016 | 0 | 2 |
| 2017 | 1 | 1 |
| 2018 | 0 | 2 |
| 2019 | 1 | 3 |
| 2020 | 2 | 2 |
| 2021 | 2 | 1 |
| 2022 | 2 | 2 |
| 2023 | 2 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Catalytic support for catalysis processes25 Mar 2025US 12,257,572 B2
- Method for forming a catalyst article28 Nov 2023US 11,826,739 B2
- Exhaust filter system for internal combustion engines and method of using same10 Oct 2023US 11,781,455 B2The Original Carbon Trap Inc.
- Article of manufacture for securing a catalyst substrate17 May 2022US 11,331,624 B2Cummins Emission Solutions Inc.
- Honeycomb structure, honeycomb structure type catalyst and production methods therefor19 Apr 2022US 11,305,270 B2N. E. Chemcat Corporation
- Particulate filters2 Mar 2023US 2023/0067575 A1
- Exhaust filter system for internal combustion engines and method of using same24 Nov 2022US 2022/0372901 A1The Original Carbon Trap Inc.
- Catalytic support for catalysis processes11 Aug 2022US 2022/0250045 A1
- Method4 Nov 2021US 2021/0339234 A1Johnson Matthey Catalysts (Germany) GMBH
- Foam-Based Substrate For Catalytic Converter19 Nov 2020US 2020/0360896 A1
Most cited
By later US patents
- Foam catalyst support for exhaust purification83US 6,040,266 AUltramet · 2000
- Melt-spun ceramic fiber filter and method55US 6,860,917 B2Fleetguard, Inc. · 2005
- Sintered ceramic filter structure having body compressively stressed by sintered ceramic material having different sintering shrinkage ratio43US 4,732,593 ANippondenso Co., Ltd. · 1988
- Automotive exhaust system33US 4,530,418 A1985
- Method for reducing particulates discharged by combustion means32US 4,304,096 ARegents of the University of Minnesota · 1981