B01D 2255/9207
Specific surface
B01D2255/9207 (Specific surface) appears on 358 US grants and 476 published applications in this corpus.
Search patents in B01D- Granted patents
- 358
- Published applications
- 476
- Assignees
- 230
- Inventors
- 1,236
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 8 | 0 |
| 1999 | 5 | 0 |
| 2000 | 4 | 0 |
| 2001 | 5 | 1 |
| 2002 | 3 | 1 |
| 2003 | 2 | 3 |
| 2004 | 3 | 0 |
| 2005 | 0 | 4 |
| 2006 | 1 | 4 |
| 2007 | 0 | 2 |
| 2008 | 4 | 6 |
| 2009 | 1 | 17 |
| 2010 | 3 | 21 |
| 2011 | 6 | 33 |
| 2012 | 16 | 22 |
| 2013 | 21 | 14 |
| 2014 | 16 | 28 |
| 2015 | 15 | 21 |
| 2016 | 20 | 13 |
| 2017 | 13 | 21 |
| 2018 | 12 | 33 |
| 2019 | 24 | 33 |
| 2020 | 28 | 33 |
| 2021 | 16 | 43 |
| 2022 | 32 | 52 |
| 2023 | 37 | 31 |
| 2024 | 16 | 23 |
| 2025 | 21 | 11 |
| 2026 | 12 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Selective catalytic reduction catalyst for the treatment of an exhaust gas8 Sep 2026US 12,728,409 B2BASF Mobile Emissions Catalysts LLC
- Composite, zoned oxidation catalyst for a compression ignition internal combustion engine25 Aug 2026US 12,714,990 B2Johnson Matthey Public Limited Company
- Selective ammonia oxidation catalyst19 May 2026US 12,629,662 B2BASF Mobile Emissions Catalysts LLC
- Cerium- and zirconium-based mixed oxides24 Mar 2026US 12,582,966 B2Rhodia Operations
- Selective catalytic reduction catalyst and a process for preparing a selective catalytic reduction catalyst10 Mar 2026US 12,569,810 B2BASF Mobile Emissions Catalysts LLC
- Gpf with improved washcoat distribution13 Aug 2026US 2026/0233163 A1Umicore AG & Co. KG
- Method for the production of supported catalysts25 Jun 2026US 2026/0175208 A1Blücher GmbH
- Methods for preparing molecular sieves using 1,1-diethyl-2,6-dimethylpiperidin-1-ium and molecular sieves prepared therefrom16 Apr 2026US 2026/0102760 A1
- Cerium- and Zirconium-Based Mixed Oxide26 Feb 2026US 2026/0054253 A1Rhodia Operation
- Catalysts for Reducing Methane Slip and Methods and Exhaust Systems Using the Same8 Jan 2026US 2026/0008011 A1His Majesty the King In Right of Canada, AS Represented By the Minister of Natural Resources
Most cited
By later US patents
- Monomodal and polymodal catalyst supports and catalysts having narrow pore size distributions and their production129US 5,935,897 ABASF SE · 1999
- Engine exhaust gas purification catalyst and exhaust gas purifier84US 6,047,544 ANissan Motor Co., Ltd. · 2000
- Rare earth containing catalyst composition76US 3,993,572 AEngelhard Minerals & Chemicals Corporation · 1976
- Composite oxide, composite oxide carrier and catalyst76US 6,306,794 B1Kabushiki Kaisha Toyota Chuo Kenkyusho · 2001
- Layered catalyst composite76US 6,764,665 B2Engelhard Corporation · 2004