B01D 2255/1021
Platinum
B01D2255/1021 (Platinum) appears on 1,506 US grants and 1,958 published applications in this corpus.
Search patents in B01D- Granted patents
- 1,506
- Published applications
- 1,958
- Assignees
- 555
- Inventors
- 3,333
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 7 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 5 | 0 |
| 1993 | 2 | 0 |
| 1994 | 8 | 0 |
| 1995 | 9 | 0 |
| 1996 | 5 | 0 |
| 1997 | 8 | 0 |
| 1998 | 16 | 0 |
| 1999 | 20 | 0 |
| 2000 | 28 | 0 |
| 2001 | 15 | 9 |
| 2002 | 19 | 16 |
| 2003 | 18 | 26 |
| 2004 | 19 | 21 |
| 2005 | 13 | 13 |
| 2006 | 12 | 41 |
| 2007 | 10 | 31 |
| 2008 | 14 | 44 |
| 2009 | 19 | 97 |
| 2010 | 52 | 134 |
| 2011 | 46 | 106 |
| 2012 | 67 | 94 |
| 2013 | 94 | 80 |
| 2014 | 85 | 109 |
| 2015 | 86 | 110 |
| 2016 | 86 | 108 |
| 2017 | 100 | 129 |
| 2018 | 89 | 125 |
| 2019 | 107 | 104 |
| 2020 | 86 | 90 |
| 2021 | 68 | 85 |
| 2022 | 66 | 94 |
| 2023 | 67 | 98 |
| 2024 | 58 | 89 |
| 2025 | 52 | 55 |
| 2026 | 34 | 50 |
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
- Methane mitigation system with use of waste heat for power generation25 Aug 2026US 12,714,971 B2Enhanced Energy Group LLC
- Composite, zoned oxidation catalyst for a compression ignition internal combustion engine25 Aug 2026US 12,714,990 B2Johnson Matthey Public Limited Company
- Three-way conversion catalyst composition comprising platinum-rhodium bimetallic components11 Aug 2026US 12,702,968 B2BASF Mobile Emissions Catalysts LLC
- Particles with an ASTM D-5757 attrition index between 5 and 2511 Aug 2026US 12,702,969 B2Cochise Technology, LLC
- Exhaust purification device8 Oct 2026US 2026/0307009 A1Mazda Motor Corporation
- System for treating an exhaust gas8 Oct 2026US 2026/0307052 A1Johnson Matthey Public Limited Company
- An exhaust gas treatment system for treating an exhaust gas stream exiting a gasoline engine1 Oct 2026US 2026/0295528 A1
- System for processing gas and method for processing gas using the same17 Sep 2026US 2026/0273460 A1Research & Business Foundation Sungkyunkwan University
- Catalyst article for treating exhaust gas, its method of manufacture and uses thereof10 Sep 2026US 2026/0264015 A1Johnson Matthey Public Limited Company
Most cited
By later US patents
- Exhaust gas purification device for an internal combustion engine197US 5,974,791 AToyota Jidosha Kabushiki Kaisha · 1999
- NOx decreasing apparatus for an internal combustion engine153US 5,412,946 AKabushiki Kaisha Toyota Chuo Kenkyusho · 1995
- Method and apparatus for emission control148US 6,314,722 B1Matros Technologies, Inc. · 2001
- Apparatus, method, and system for concentrating adsorbable pollutants and abatement thereof119US 6,105,365 AEngelhard Corporation · 2000
- Exhaust gas purification device for an engine103US 5,472,673 AToyota Jidosha Kabushiki Kaisha · 1995