F01N 2900/1616
Nh3-slip from catalyst
Official title: NH3-slip from catalyst
F01N2900/1616 (Nh3-slip from catalyst) appears on 230 US grants and 264 published applications in this corpus.
Search patents in F01N- Granted patents
- 230
- Published applications
- 264
- Assignees
- 85
- Inventors
- 491
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 1 |
| 2009 | 0 | 2 |
| 2010 | 2 | 12 |
| 2011 | 2 | 19 |
| 2012 | 7 | 13 |
| 2013 | 15 | 12 |
| 2014 | 14 | 19 |
| 2015 | 23 | 31 |
| 2016 | 21 | 15 |
| 2017 | 16 | 28 |
| 2018 | 17 | 17 |
| 2019 | 29 | 24 |
| 2020 | 20 | 15 |
| 2021 | 12 | 8 |
| 2022 | 15 | 13 |
| 2023 | 13 | 13 |
| 2024 | 10 | 5 |
| 2025 | 6 | 10 |
| 2026 | 7 | 4 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Engine device6 Oct 2026US 12,753,713 B2Yanmar Holdings Co., Ltd.
- Exhaust gas purification apparatus1 Sep 2026US 12,723,529 B2Isuzu Motors Limited
- System and method for adaptive control of ammonia-NOx ratio28 Jul 2026US 12,692,810 B2Caterpillar Inc.
- Purification system24 Mar 2026US 12,584,432 B2Isuzu Motors Limited
- Method for exhaust gas after-treatment of an internal combustion engine having at least one SCR catalyst27 Jan 2026US 12,535,024 B2Robert Bosch GmbH
- Method for operating a drive device and corresponding drive device16 Jul 2026US 2026/0199835 A1Audi AG
- System and method for adaptive control of ammonia-nox ratio18 Jun 2026US 2026/0168418 A1Caterpillar Inc.
- Emission apparatuses for sensor cross-sensitivity to ammonia and associated systems and methods14 May 2026US 2026/0133171 A1Safety Power Inc.
- Systems and methods for doser bias detection in aftertreatment systems9 Apr 2026US 2026/0098491 A1Cummins Emission Solutions Inc.
- Method for monitoring an exhaust gas catalytic converter of an internal combustion engine25 Sep 2025US 2025/0297568 A1Rolls-Royce Solutions GmbH
Most cited
By later US patents
- Method for adjusting a reductant used in an internal combustion engine to reduce NOx43US 7,320,781 B22008
- Nitrogen oxide estimation downstream of a selective catalytic reduction catalyst20US 8,061,126 B2GM Global Technology Operations LLC · 2011
- Abnormality diagnosis device for a sensor17US 9,624,804 B2Toyota Jidosha Kabushiki Kaisha · 2017
- Apparatus, system, and method for reducing NOx emissions on an SCR catalyst16US 8,161,730 B2Cummins IP, Inc. · 2012
- Method, system, and apparatus for diagnosing an exhaust aftertreatment component16US 9,273,587 B2Cummins IP, Inc. · 2016