B01D 2255/405
Spinels
B01D2255/405 (Spinels) appears on 74 US grants and 112 published applications in this corpus.
Search patents in B01D- Granted patents
- 74
- Published applications
- 112
- Assignees
- 45
- Inventors
- 164
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 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 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 6 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 3 |
| 2010 | 0 | 2 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 3 |
| 2014 | 5 | 9 |
| 2015 | 2 | 22 |
| 2016 | 9 | 18 |
| 2017 | 9 | 14 |
| 2018 | 5 | 10 |
| 2019 | 6 | 2 |
| 2020 | 6 | 6 |
| 2021 | 2 | 8 |
| 2022 | 6 | 1 |
| 2023 | 4 | 4 |
| 2024 | 3 | 3 |
| 2025 | 0 | 2 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Exhaust gas purification catalyst device7 Apr 2026US 12,594,525 B2Cataler Corporation
- Exhaust gas purification catalyst17 Feb 2026US 12,551,877 B2Mitsui Kinzoku Company, Limited
- Catalyst for direct NOx decomposition and a method for making and using the catalyst10 Dec 2024US 12,161,971 B2Toyota Motor Engineering & Manufacturing North America, Inc.
- Catalyst with magnetic ferrite support material10 Dec 2024US 12,163,455 B2BASF Mobile Emissions Catalysts LLC
- Dual dispersed MOx-CuOx/Co3O4 supported metal oxide catalysts for direct NOx decomposition30 Apr 2024US 11,969,715 B2Toyota Motor Engineering & Manufacturing North America, Inc.
- Multi-phase catalyst system for sustainable reduction of nitrous oxide emissions25 Jun 2026US 2026/0175207 A1
- Mixed metal oxide catalysts and compositions and processes for the production thereof18 Jun 2026US 2026/0166527 A1Aether Catalyst Solutions, Inc.
- Catalyst for synergistic removal of nitrogen oxides and co as well as preparation method and use thereof29 Jan 2026US 2026/0027560 A1Zhejiang University
- A process for treating gas streams with high concentration of n2o11 Sep 2025US 2025/0281877 A1Topsoe A/S
- Exhaust gas purification catalytic device17 Apr 2025US 2025/0121359 A1Cataler Corporation
Most cited
By later US patents
- Method for improving lean performance of PGM catalyst systems: synergized PGM26US 8,845,987 B1Clean Diesel Technologies Inc. (Cdti) · 2014
- Spinel-based catalysts for reducing exhaust emissions of NO.sub.x24US 5,736,114 ARhone-Poulenc Chimie · 1998
- Thermally stable compositions of OSM free of rare earth metals21US 8,853,121 B1Clean Diesel Technology Inc. · 2014
- High surface area ruthenium bonding supports on monolithic ceramics20US 3,990,998 AExxon Research & Engineering Co. · 1976
- Process and apparatus for cleaning a gas flow19US 6,696,389 B1DaimlerChrysler AG · 2004