B01D 2255/2042
Barium
B01D2255/2042 (Barium) appears on 458 US grants and 585 published applications in this corpus.
Search patents in B01D- Granted patents
- 458
- Published applications
- 585
- Assignees
- 154
- Inventors
- 1,123
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 5 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 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 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 5 | 0 |
| 1999 | 6 | 0 |
| 2000 | 8 | 0 |
| 2001 | 6 | 4 |
| 2002 | 16 | 19 |
| 2003 | 9 | 10 |
| 2004 | 8 | 6 |
| 2005 | 7 | 4 |
| 2006 | 5 | 13 |
| 2007 | 1 | 9 |
| 2008 | 1 | 10 |
| 2009 | 4 | 21 |
| 2010 | 12 | 27 |
| 2011 | 9 | 26 |
| 2012 | 16 | 18 |
| 2013 | 18 | 25 |
| 2014 | 22 | 25 |
| 2015 | 19 | 38 |
| 2016 | 23 | 33 |
| 2017 | 36 | 41 |
| 2018 | 26 | 43 |
| 2019 | 39 | 31 |
| 2020 | 24 | 43 |
| 2021 | 22 | 23 |
| 2022 | 22 | 37 |
| 2023 | 21 | 30 |
| 2024 | 21 | 26 |
| 2025 | 20 | 19 |
| 2026 | 13 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Complex oxides for reactive oxygen separation and related applications6 Oct 2026US 12,752,260 B2North Carolina State University
- Multi-layer TWC formulations with optimalized PGM loadings29 Sep 2026US 12,746,510 B2Johnson Matthey Public Limited Company
- Layered tri-metallic catalytic article and method of manufacturing the catalytic article29 Sep 2026US 12,746,532 B2BASF Mobile Emissions Catalysts LLC
- Exhaust gas purification device and method for manufacturing exhaust gas purification device29 Sep 2026US 12,746,533 B2Cataler Corporation
- Composite, zoned oxidation catalyst for a compression ignition internal combustion engine25 Aug 2026US 12,714,990 B2Johnson Matthey Public Limited Company
- Improved three-way catalysts23 Jul 2026US 2026/0208106 A1
- Catalyst article having improved barium distribution9 Jul 2026US 2026/0192252 A1Johnson Matthey Public Limited Company
- Catalyzed particulate filter9 Apr 2026US 2026/0097364 A1
- Exhaust gas purification catalyst12 Mar 2026US 2026/0070043 A1Mazda Motor Corporation
- Abatement apparatus and method18 Dec 2025US 2025/0381520 A1
Most cited
By later US patents
- Exhaust gas purification apparatus for an internal combustion engine149US 5,402,641 AToyota Jidosha Kabushiki Kaisha · 1995
- Exhaust gas purification device for an engine103US 5,472,673 AToyota Jidosha Kabushiki Kaisha · 1995
- Multi-zoned catalytic trap and methods of making and using the same88US 6,375,910 B1Engelhard Corporation · 2002
- Composite oxide, composite oxide carrier and catalyst76US 6,306,794 B1Kabushiki Kaisha Toyota Chuo Kenkyusho · 2001
- Exhaust gas purifying catalyst and manufacturing method thereof65US 7,851,405 B2Nissan Motor Co., Ltd. · 2010