F01N 2560/021
For measuring or detecting ammonia nh3
Official title: for measuring or detecting ammonia NH3
F01N2560/021 (For measuring or detecting ammonia nh3) appears on 256 US grants and 311 published applications in this corpus.
Search patents in F01N- Granted patents
- 256
- Published applications
- 311
- Assignees
- 106
- Inventors
- 602
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 1 |
| 2003 | 2 | 4 |
| 2004 | 3 | 2 |
| 2005 | 1 | 3 |
| 2006 | 1 | 3 |
| 2007 | 2 | 11 |
| 2008 | 2 | 11 |
| 2009 | 2 | 10 |
| 2010 | 6 | 22 |
| 2011 | 7 | 27 |
| 2012 | 18 | 18 |
| 2013 | 18 | 14 |
| 2014 | 18 | 12 |
| 2015 | 15 | 14 |
| 2016 | 18 | 19 |
| 2017 | 13 | 17 |
| 2018 | 13 | 16 |
| 2019 | 13 | 22 |
| 2020 | 18 | 19 |
| 2021 | 20 | 23 |
| 2022 | 22 | 9 |
| 2023 | 14 | 13 |
| 2024 | 10 | 6 |
| 2025 | 11 | 10 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method for adaptive control of ammonia-NOx ratio28 Jul 2026US 12,692,810 B2Caterpillar Inc.
- 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
- Apparatus for reducing greenhouse gas emission in vessel and vessel including the same18 Nov 2025US 12,472,460 B2Daewoo Shipbuilding & Marine Engineering Co., Ltd.
- Method and device for measuring nitrogen oxide and ammonia emissions from an exhaust gas aftertreatment system for combustion exhaust gases7 Oct 2025US 12,436,065 B2Robert Bosch GmbH
- Systems and methods for managing ammonia slip with a heater29 Jul 2025US 12,372,019 B2Cummins Inc.
- Sensing system for gas turbine power plant exhaust30 Jul 2026US 2026/0218640 A1Mitsubishi Power Americas, Inc.
- 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.
- Assembly and method for monitoring an ammonia exhaust gas purification plant27 Nov 2025US 2025/0362264 A1Dräger Safety AG & Co. KGaA
Most cited
By later US patents
- Method and apparatus for controlled introduction of a reducing agent into a nitrogen oxide-containing exhaust gas153US 5,628,186 ASiemens Aktiengesellschaft · 1997
- Exhaust gas aftertreatment device for internal combustion engines70US 5,369,956 AMercedes-Benz AG · 1994
- Method for reducing the nitrogen oxide concentration in the exhaust of an internal combustion engine or of a firing system68US 5,540,047 ASiemens Aktiengesellschaft · 1996
- Method and apparatus for metering a reagent into a flowing medium62US 5,643,536 ASiemens Aktiengesellschaft · 1997
- Method and system for NOx reduction61US 6,427,439 B1Ford Global Technologies, LLC · 2002