F01N 3/0878
Bypassing absorbents or adsorbents
Official title: {Bypassing absorbents or adsorbents}
F01N3/0878 (Bypassing absorbents or adsorbents) appears on 299 US grants and 231 published applications in this corpus.
Search patents in F01N- Granted patents
- 299
- Published applications
- 231
- Assignees
- 99
- Inventors
- 613
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 6 | 0 |
| 1995 | 11 | 0 |
| 1996 | 12 | 0 |
| 1997 | 14 | 0 |
| 1998 | 12 | 0 |
| 1999 | 13 | 0 |
| 2000 | 8 | 0 |
| 2001 | 17 | 7 |
| 2002 | 15 | 9 |
| 2003 | 9 | 30 |
| 2004 | 27 | 28 |
| 2005 | 21 | 14 |
| 2006 | 13 | 20 |
| 2007 | 8 | 13 |
| 2008 | 4 | 12 |
| 2009 | 4 | 17 |
| 2010 | 10 | 14 |
| 2011 | 15 | 10 |
| 2012 | 12 | 6 |
| 2013 | 6 | 8 |
| 2014 | 11 | 5 |
| 2015 | 7 | 5 |
| 2016 | 5 | 2 |
| 2017 | 3 | 3 |
| 2018 | 1 | 2 |
| 2019 | 5 | 1 |
| 2020 | 0 | 2 |
| 2021 | 1 | 4 |
| 2022 | 3 | 2 |
| 2023 | 4 | 6 |
| 2024 | 5 | 1 |
| 2025 | 4 | 6 |
| 2026 | 3 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method for controlling a cold light off catalyst8 Sep 2026US 12,729,639 B2Fca US LLC
- Mild-hybrid electric vehicle (MHEV) emissions aftertreatment system18 Aug 2026US 12,710,025 B2Saudi Arabian Oil Company
- Exhaust aftertreatment unit5 May 2026US 12,618,348 B2Volvo Truck Corporation
- Active hydrocarbon trap for reduction of emissions from internal combustion engines using a four valve configuration25 Nov 2025US 12,480,433 B2Saudi Arabian Oil Company
- Active hydrocarbon trap for reduction of emissions from internal combustion engines using a three-valve configuration7 Oct 2025US 12,435,655 B2Saudi Arabian Oil Company
- System and method for controlling a cold light off catalyst3 Sep 2026US 2026/0258742 A1Fca US LLC
- System and method for bypassing carbon capture system of gas turbine engine18 Jun 2026US 2026/0166486 A1
- Mild-hybrid electric vehicle (mhev) emissions aftertreatment system19 Mar 2026US 2026/0078723 A1Aramco Services Company
- Active hydrocarbon trap for reduction of emissions from internal combustion engines using a two-valve configuration15 Jan 2026US 2026/0015962 A1Saudi Arabian Oil Company
- Exhaust aftertreatment unit2 Oct 2025US 2025/0305433 A1Volvo Truck Corporation
Most cited
By later US patents
- Exhaust gas purification device for an internal combustion engine197US 5,974,791 AToyota Jidosha Kabushiki Kaisha · 1999
- Dual converter engine exhaust system for reducing hydrocarbon emissions137US 5,125,231 ACorning Incorporated · 1992
- Apparatus, method, and system for concentrating adsorbable pollutants and abatement thereof119US 6,105,365 AEngelhard Corporation · 2000
- Integrated NOx and PM reduction devices for the treatment of emissions from internal combustion engines116US 7,062,904 B1Eaton Corporation · 2006
- Exhaust emission control device for a diesel engine106US 4,934,142 AToyota Jidosha Kabushiki Kaisha · 1990