B01D 2255/502
Beta zeolites
B01D2255/502 (Beta zeolites) appears on 257 US grants and 347 published applications in this corpus.
Search patents in B01D- Granted patents
- 257
- Published applications
- 347
- Assignees
- 106
- Inventors
- 585
- Latest grant
- 13 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 3 |
| 2004 | 2 | 0 |
| 2005 | 2 | 2 |
| 2006 | 0 | 3 |
| 2007 | 2 | 2 |
| 2008 | 1 | 7 |
| 2009 | 1 | 24 |
| 2010 | 6 | 24 |
| 2011 | 9 | 27 |
| 2012 | 15 | 23 |
| 2013 | 15 | 16 |
| 2014 | 19 | 16 |
| 2015 | 19 | 41 |
| 2016 | 21 | 26 |
| 2017 | 24 | 19 |
| 2018 | 14 | 25 |
| 2019 | 24 | 26 |
| 2020 | 24 | 15 |
| 2021 | 20 | 9 |
| 2022 | 8 | 11 |
| 2023 | 8 | 12 |
| 2024 | 6 | 6 |
| 2025 | 10 | 5 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hydrogen oxidation catalysts for hydrogen-internal combustion engine systems13 Jan 2026US 12,523,169 B2BASF Mobile Emissions Catalysts LLC
- Diesel oxidation catalyst6 Jan 2026US 12,515,208 B2Umicore AG & Co. KG
- Yttrium-doped catalyst support30 Dec 2025US 12,508,575 B2BASF Mobile Emissions Catalysts LLC
- Ammonia oxidation catalyst device16 Sep 2025US 12,415,178 B2Cataler Corporation
- Exhaust gas treatment system for controlling hydrocarbon adsorption/desorption in hydrocarbon trap24 Jun 2025US 12,338,762 B2GM Global Technology Operations LLC
- Improved hydrocarbon trap for cold-start hydrocarbon control from internal combustion engines1 Oct 2026US 2026/0295527 A1
- Catalyst for the treatment of an exhaust gas stream containing one or more of formaldehyde, nitrogen oxide (no), and hydrocarbons having a specific mn loading19 Mar 2026US 2026/0077339 A1BASF SE
- Purification system5 Mar 2026US 2026/0061368 A1Isuzu Motors Limited
- Flue gas treatment device and design method of flue gas treatment device1 Jan 2026US 2026/0002460 A1Mitsubishi Heavy Industries, Ltd.
- Scr catalysts with blended oxides and h-zeolites11 Dec 2025US 2025/0375736 A1
Most cited
By later US patents
- Catalyzed SCR filter and emission treatment system132US 7,229,597 B2BASFD Catalysts LLC · 2007
- Thermally regenerable nitric oxide adsorbent90US 8,105,559 B2Johnson Matthey Public Limited Company · 2012
- Process and catalyst system for SCR of NOx81US 8,062,617 B2Haldor TopsøE A/S · 2011
- Diesel oxidation catalyst composite with layer structure for carbon monoxide and hydrocarbon conversion79US 8,211,392 B2BASF SE · 2012
- High temperature catalyst and process for selective catalytic reduction of NOx in exhaust gases of fossil fuel combustion78US 7,695,703 B2Siemens Energy, Inc. · 2010