F01N 2250/14
Absorption or adsorption, and filtering
Official title: absorption or adsorption, and filtering
F01N2250/14 (Absorption or adsorption, and filtering) appears on 97 US grants and 100 published applications in this corpus.
Search patents in F01N- Granted patents
- 97
- Published applications
- 100
- Assignees
- 56
- Inventors
- 276
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 1 |
| 2002 | 1 | 3 |
| 2003 | 1 | 5 |
| 2004 | 7 | 14 |
| 2005 | 6 | 10 |
| 2006 | 9 | 9 |
| 2007 | 6 | 7 |
| 2008 | 4 | 6 |
| 2009 | 5 | 8 |
| 2010 | 5 | 5 |
| 2011 | 1 | 5 |
| 2012 | 6 | 4 |
| 2013 | 3 | 2 |
| 2014 | 2 | 3 |
| 2015 | 2 | 2 |
| 2016 | 4 | 3 |
| 2017 | 2 | 1 |
| 2018 | 2 | 0 |
| 2019 | 1 | 4 |
| 2020 | 0 | 3 |
| 2021 | 3 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 4 | 3 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Post-combustion engine exhaust gases absorber18 Aug 2026US 12,710,005 B2
- Lean NOx trap plus low temperature NOx adsorber system for low temperature NOx trapping29 Oct 2024US 12,129,779 B2BASF SE
- Reduction of tailpipe emissions from gasoline internal combustion engines with a combination of sorbents22 Oct 2024US 12,123,333 B2Saudi Arabian Oil Company
- Logic for improved delta pressure based soot estimation on low restriction particulate filters9 Jan 2024US 11,867,112 B1International Engine Intellectual Property Company, LLC
- Single brick SCR/ASC/PNA/DOC close-coupled catalyst2 Jan 2024US 11,857,925 B2Johnson Matthey Public Limited Company
- Post-Combustion Engine Exhaust Gases Absorber28 Nov 2024US 2024/0392712 A1
- Reduction of tailpipe emissions from gasoline internal combustion engines with a combination of sorbents30 May 2024US 2024/0175382 A1Aramco Overseas Company B.V.
- Emissions reduction from vehicles by consuming low carbon fuel blends and utilizing carbon capture using adsorbent material4 Jan 2024US 2024/0003276 A1Saudi Arabian Oil Company
- Lean nox trap plus low temperature nox adsorber system for low temperature nox trapping5 Jan 2023US 2023/0003150 A1BASF SE
- Single brick scr/asc/pna/doc close-coupled catalyst3 Jun 2021US 2021/0162344 A1Johnson Matthey Public Limited Company
Most cited
By later US patents
- Exhaust gas purification system for low emission vehicle147US 6,167,696 AFord Motor Company · 2001
- Method for purifying exhaust gas of a diesel engine146US 5,746,989 AToyota Jidosha Kabushiki Kaisha · 1998
- Exhaust emission control device for a diesel engine106US 4,934,142 AToyota Jidosha Kabushiki Kaisha · 1990
- Narrow speed range diesel-powered engine system w/ aftertreatment devices90US 7,063,642 B1Eaton Corporation · 2006
- Device for purifying the exhaust gas of a diesel engine85US 5,711,149 AToyota Jidosha Kabushiki Kaisha · 1998