Y02C 20/10
Capture or disposal of greenhouse gases: of nitrous oxide
Official title: of nitrous oxide (N2O)
Y02C20/10 (Capture or disposal of greenhouse gases: of nitrous oxide) appears on 854 US grants and 888 published applications in this corpus.
Search patents in Y02C- Granted patents
- 854
- Published applications
- 888
- Assignees
- 432
- Inventors
- 2,120
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 9 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 5 | 0 |
| 1990 | 6 | 0 |
| 1991 | 6 | 0 |
| 1992 | 9 | 0 |
| 1993 | 10 | 0 |
| 1994 | 14 | 0 |
| 1995 | 13 | 0 |
| 1996 | 14 | 0 |
| 1997 | 6 | 0 |
| 1998 | 17 | 0 |
| 1999 | 9 | 0 |
| 2000 | 19 | 0 |
| 2001 | 18 | 8 |
| 2002 | 28 | 15 |
| 2003 | 18 | 33 |
| 2004 | 15 | 24 |
| 2005 | 21 | 25 |
| 2006 | 14 | 24 |
| 2007 | 15 | 29 |
| 2008 | 14 | 32 |
| 2009 | 21 | 34 |
| 2010 | 23 | 43 |
| 2011 | 24 | 55 |
| 2012 | 26 | 43 |
| 2013 | 36 | 44 |
| 2014 | 45 | 37 |
| 2015 | 33 | 58 |
| 2016 | 39 | 41 |
| 2017 | 50 | 46 |
| 2018 | 37 | 65 |
| 2019 | 35 | 41 |
| 2020 | 36 | 34 |
| 2021 | 41 | 39 |
| 2022 | 25 | 25 |
| 2023 | 28 | 36 |
| 2024 | 24 | 23 |
| 2025 | 21 | 17 |
| 2026 | 12 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Process for working-up a nitrous oxide comprising off-gas stream11 Aug 2026US 12,702,951 B2BASF SE
- Exhaust gas aftertreatment system in an exhaust gas system of an ammonia combustion engine, method and use thereof16 Jun 2026US 12,655,783 B2Hug Engineering AG
- Selective ammonia oxidation catalyst19 May 2026US 12,629,662 B2BASF Mobile Emissions Catalysts LLC
- Waste gas treatment apparatus for semiconductor and display processes14 Apr 2026US 12,604,697 B2
- Adsorber, purification system, and purification method7 Apr 2026US 12,595,960 B2Air Products and Chemicals, Inc.
- Process for removing nitric oxide, nitrous oxide and carbon monoxide from a gas stream30 Jul 2026US 2026/0216642 A1BASF SE
- Reducing the content of nox and n2o in the offgas from firing plants operated with nh3 for catalytic decomposition of nh330 Jul 2026US 2026/0216648 A1
- Reduction of nox and n2o in the exhaust gas of ship motors operated using nh330 Jul 2026US 2026/0216649 A1
- Catalyst for the abatement of ammonia and nitrogen oxide emissions from the exhaust gases of combustion engines16 Jul 2026US 2026/0199836 A1Umicore AG & Co. KG
- Gas decomposition catalyst and method and scrubber system for decomposing nitrous oxide (n2o) gas by using the same2 Jul 2026US 2026/0183752 A1Samsung Electronics Co., Ltd.
Most cited
By later US patents
- Ventilation apparatus and anesthesia delivery system310US 6,131,571 AUniversity of Florida · 2000
- Storage and delivery system for gaseous hydride, halide, and organometallic group V compounds164US 5,518,528 AAdvanced Technology Materials, Inc. · 1996
- Staged metal-promoted zeolite catalysts and method for catalytic reduction of nitrogen oxides using the same156US 5,516,497 AEngelhard Corporation · 1996
- Filter and method for removing mercury, bacteria, pathogens and other vapors from gas134US 4,917,862 A1990
- NOx emission-control system using a virtual sensor122US 6,882,929 B2Caterpillar Inc. · 2005