B01D 2258/014
Stoichiometric gasoline engines
B01D2258/014 (Stoichiometric gasoline engines) appears on 213 US grants and 351 published applications in this corpus.
Search patents in B01D- Granted patents
- 213
- Published applications
- 351
- Assignees
- 107
- Inventors
- 745
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
| 2006 | 1 | 2 |
| 2007 | 1 | 5 |
| 2008 | 1 | 4 |
| 2009 | 0 | 20 |
| 2010 | 5 | 37 |
| 2011 | 6 | 22 |
| 2012 | 20 | 11 |
| 2013 | 23 | 13 |
| 2014 | 10 | 17 |
| 2015 | 15 | 16 |
| 2016 | 15 | 13 |
| 2017 | 11 | 10 |
| 2018 | 7 | 9 |
| 2019 | 7 | 12 |
| 2020 | 10 | 18 |
| 2021 | 13 | 24 |
| 2022 | 13 | 22 |
| 2023 | 17 | 30 |
| 2024 | 14 | 33 |
| 2025 | 17 | 15 |
| 2026 | 6 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for manufacturing exhaust gas purification catalyst29 Sep 2026US 12,746,538 B2Cataler Corporation
- Oxygen storage/release material and method for producing the same17 Mar 2026US 12,576,394 B2Cataler Corporation
- Catalysts for gasoline engine exhaust gas treatments10 Mar 2026US 12,569,829 B2Johnson Matthey Public Limited Company
- Exhaust gas purification catalyst17 Feb 2026US 12,551,877 B2Mitsui Kinzoku Company, Limited
- Anionic PGM carboxylate assisted PGM nanoparticle synthesis for exhaust gas treatment applications10 Feb 2026US 12,544,738 B2Johnson Matthey Public Limited Company
- An exhaust gas treatment system for treating an exhaust gas stream exiting a gasoline engine1 Oct 2026US 2026/0295528 A1
- Catalyst article for treating exhaust gas, its method of manufacture and uses thereof10 Sep 2026US 2026/0264015 A1Johnson Matthey Public Limited Company
- Gasoline particulate filter20 Aug 2026US 2026/0243183 A1
- Gpf with improved washcoat distribution13 Aug 2026US 2026/0233163 A1Umicore AG & Co. KG
- A multifunctional catalyst system30 Jul 2026US 2026/0216650 A1Dinex A/S
Most cited
By later US patents
- Exhaust system with emissions storage device and plasma reactor111US 5,746,984 ALow Emissions Technologies Research and Development Partnership · 1998
- Removal of particulates from the exhaust gas of internal combustion engines operated with a predominantly stoichiometric air/fuel mixture40US 8,066,963 B2Umicore AG & Co. KG · 2011
- Apparatus, system, and method for reducing NOx emissions from an engine system38US 8,281,572 B2Cummins IP, Inc. · 2012
- Palladium-supported catalyst composites37US 8,568,675 B2BASF SE · 2013
- Mixed-phase ceramic oxide three-way catalyst formulations and methods for preparing the catalysts35US 7,641,875 B1Catalytic Solutions, Inc. · 2010