F01N 3/0864
Oxygen
Official title: {Oxygen}
F01N3/0864 (Oxygen) appears on 171 US grants and 180 published applications in this corpus.
Search patents in F01N- Granted patents
- 171
- Published applications
- 180
- Assignees
- 61
- Inventors
- 431
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 8 | 2 |
| 2002 | 9 | 1 |
| 2003 | 3 | 2 |
| 2004 | 2 | 5 |
| 2005 | 5 | 0 |
| 2006 | 1 | 5 |
| 2007 | 3 | 13 |
| 2008 | 3 | 10 |
| 2009 | 6 | 16 |
| 2010 | 8 | 6 |
| 2011 | 5 | 4 |
| 2012 | 16 | 10 |
| 2013 | 2 | 4 |
| 2014 | 7 | 4 |
| 2015 | 4 | 10 |
| 2016 | 9 | 8 |
| 2017 | 4 | 15 |
| 2018 | 19 | 12 |
| 2019 | 12 | 9 |
| 2020 | 7 | 7 |
| 2021 | 12 | 12 |
| 2022 | 5 | 5 |
| 2023 | 6 | 9 |
| 2024 | 5 | 7 |
| 2025 | 3 | 1 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Exhaust gas purification catalyst6 Oct 2026US 12,752,237 B2Cataler Corporation
- Method for manufacturing gasoline particulate filter10 Feb 2026US 12,544,739 B2Johnson Matthey Public Limited Company
- Ce—Zr composite oxide and exhaust gas purification catalyst using same6 Jan 2026US 12,515,201 B2Umicore Shokubai Japan Co., Ltd.
- Systems and methods for filter regeneration with cylinder deactivation16 Dec 2025US 12,497,927 B2Cummins Inc.
- High entropy rare earth oxides for emissions control30 Sep 2025US 12,427,477 B2Ford Global Technologies, LLC
- Exhaust Gas Purification Catalyst23 Jul 2026US 2026/0208107 A1Cataler Corporation
- Catalyst for Exhaust Gas Purification9 Apr 2026US 2026/0097363 A1Cataler Corporation
- Catalyzed particulate filter9 Apr 2026US 2026/0097364 A1
- Method to Determine the Oxygen Storage Capacity of a Catalytic Converter of an Exhaust Gas System of an Internal Combustion Engine15 May 2025US 2025/0154891 A1Marelli Europe S.P.A.
- Catalytic wall flow filter1 Aug 2024US 2024/0254906 A1Johnson Matthey Public Limited Company
Most cited
By later US patents
- Method and apparatus for desulfating a no.sub.x trap176US 5,974,788 AFord Global Technologies, LLC · 1999
- No exhaust emission control method and arrangement83US 5,992,142 AVolkswagen Aktiengesellschaft · 1999
- Engine exhaust treatment apparatus and method of use49US 6,497,851 B1Englehard Corporation · 2002
- Nitrogen oxide storage material and nitrogen oxide storing catalyst prepared therefrom42US 6,350,421 B1dmc2 Degussa Metals Catalysts Cerdec AG · 2002
- Method and apparatus for desulfating a NOx trap41US 6,199,373 B1Ford Global Technologies, LLC · 2001