B01J 37/0244
Coatings comprising several layers
Official title: {Coatings comprising several layers}
B01J37/0244 (Coatings comprising several layers) appears on 1,305 US grants and 1,640 published applications in this corpus.
Search patents in B01J- Granted patents
- 1,305
- Published applications
- 1,640
- Assignees
- 531
- Inventors
- 3,098
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 7 | 0 |
| 1992 | 5 | 0 |
| 1993 | 10 | 0 |
| 1994 | 5 | 0 |
| 1995 | 11 | 0 |
| 1996 | 11 | 0 |
| 1997 | 14 | 0 |
| 1998 | 15 | 0 |
| 1999 | 11 | 0 |
| 2000 | 20 | 0 |
| 2001 | 20 | 13 |
| 2002 | 22 | 31 |
| 2003 | 28 | 51 |
| 2004 | 22 | 38 |
| 2005 | 22 | 41 |
| 2006 | 24 | 30 |
| 2007 | 22 | 36 |
| 2008 | 15 | 45 |
| 2009 | 31 | 66 |
| 2010 | 42 | 78 |
| 2011 | 43 | 64 |
| 2012 | 44 | 76 |
| 2013 | 56 | 79 |
| 2014 | 68 | 99 |
| 2015 | 72 | 113 |
| 2016 | 88 | 98 |
| 2017 | 74 | 89 |
| 2018 | 82 | 101 |
| 2019 | 87 | 82 |
| 2020 | 56 | 66 |
| 2021 | 53 | 51 |
| 2022 | 49 | 72 |
| 2023 | 48 | 78 |
| 2024 | 43 | 73 |
| 2025 | 46 | 37 |
| 2026 | 21 | 33 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Filter for air purification and manufacturing method thereof15 Sep 2026US 12,734,512 B2Hyundai Motor Company
- Selective catalytic reduction catalyst for the treatment of an exhaust gas8 Sep 2026US 12,728,409 B2BASF Mobile Emissions Catalysts LLC
- Composite for air purification, method of manufacturing the same, and filter including the same25 Aug 2026US 12,714,958 B2Hyundai Motor Company
- Composite, zoned oxidation catalyst for a compression ignition internal combustion engine25 Aug 2026US 12,714,990 B2Johnson Matthey Public Limited Company
- Methane oxidation catalysts, methods of using thereof, and methods of making thereof10 Sep 2026US 2026/0264057 A1Yale University
- Exhaust gas purification catalyst composition, exhaust gas purification catalyst and exhaust gas purification system3 Sep 2026US 2026/0257173 A1Mitsui Mining & Smelting Co., Ltd.
- Catalyst noble metal particles27 Aug 2026US 2026/0249275 A1Cataler Corporation
- Exhaust Gas Purification Catalyst20 Aug 2026US 2026/0243188 A1Cataler Corporation
- Supported photocatalyst, method of making and uses of the same13 Aug 2026US 2026/0233211 A1
Most cited
By later US patents
- Layered catalyst composite162US 5,597,771 AEngelhard Corporation · 1997
- Catalyst composition containing segregated platinum and rhodium components151US 5,057,483 AEngelhard Corporation · 1991
- Four-way diesel exhaust catalyst and method of use122US 6,093,378 AEngelhard Corporation · 2000
- Catalyst for exhaust gas purification and process for production thereof114US 5,439,865 AKrosaki Corporation · 1995
- Pt-Pd diesel oxidation catalyst with CO/HC light-off and HC storage function101US 7,576,031 B2BASF Catalysts LLC · 2009