B01D 53/9468
In different layers
Official title: {in different layers}
B01D53/9468 (In different layers) appears on 196 US grants and 281 published applications in this corpus.
Search patents in B01D- Granted patents
- 196
- Published applications
- 281
- Assignees
- 63
- Inventors
- 571
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 1 |
| 2004 | 2 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 3 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 0 | 2 |
| 2010 | 2 | 8 |
| 2011 | 2 | 7 |
| 2012 | 7 | 11 |
| 2013 | 6 | 7 |
| 2014 | 10 | 7 |
| 2015 | 6 | 17 |
| 2016 | 6 | 10 |
| 2017 | 12 | 20 |
| 2018 | 13 | 29 |
| 2019 | 21 | 31 |
| 2020 | 15 | 23 |
| 2021 | 23 | 19 |
| 2022 | 21 | 29 |
| 2023 | 16 | 19 |
| 2024 | 12 | 16 |
| 2025 | 12 | 11 |
| 2026 | 7 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Layered tri-metallic catalytic article and method of manufacturing the catalytic article29 Sep 2026US 12,746,532 B2BASF Mobile Emissions Catalysts LLC
- Electrically heated exhaust gas purification catalyst22 Sep 2026US 12,741,271 B2Mitsui Kinzoku Company, Limited
- Selective ammonia oxidation catalyst19 May 2026US 12,629,662 B2BASF Mobile Emissions Catalysts LLC
- Exhaust gas purification catalyst device7 Apr 2026US 12,594,525 B2Cataler Corporation
- Emission control catalyst article with PGM-gradient architecture17 Mar 2026US 12,576,395 B2BASF Mobile Emissions Catalysts LLC
- Exhaust gas purification catalyst composition, exhaust gas purification catalyst and exhaust gas purification system3 Sep 2026US 2026/0257173 A1Mitsui Mining & Smelting Co., Ltd.
- Exhaust Gas Purification Catalyst20 Aug 2026US 2026/0243188 A1Cataler Corporation
- 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
- A copper- and and manganese-containing catalyst for the treatment of an exhaust gas stream containing one or more of formaldehyde, nitrogen oxide (no), and hydrocarbons9 Jul 2026US 2026/0192251 A1
- Exhaust Gas Purifying Catalyst and Catalyst Body using the Same7 May 2026US 2026/0124581 A1Cataler Corporation
Most cited
By later US patents
- Catalytic wall-flow filter103US 6,753,294 B1Johnson Matthey Public Limited Company · 2004
- Method for treating soot-containing exhaust56US 7,097,817 B2Johnson Matthey Public Limited Company · 2006
- Method and apparatus for combination catalyst for reduction of NOx in combustion products31US 7,803,338 B2Caterpillar Inc. · 2010
- Integrated SCR and AMOx catalyst systems28US 8,293,182 B2BASF SE · 2012
- Catalyst system to be used in automobile exhaust gas purification apparatus, exhaust gas purification apparatus using the same and exhaust gas purification method25US 8,202,819 B2Daiichi Kigenso Kagaku Kogyo Co., Ltd. · 2012