B01D 2255/504
Zsm 5 zeolites
Official title: ZSM 5 zeolites
B01D2255/504 (Zsm 5 zeolites) appears on 181 US grants and 225 published applications in this corpus.
Search patents in B01D- Granted patents
- 181
- Published applications
- 225
- Assignees
- 108
- Inventors
- 545
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 5 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 5 | 0 |
| 2001 | 4 | 2 |
| 2002 | 1 | 1 |
| 2003 | 1 | 3 |
| 2004 | 0 | 3 |
| 2005 | 2 | 1 |
| 2006 | 2 | 4 |
| 2007 | 2 | 2 |
| 2008 | 1 | 7 |
| 2009 | 1 | 11 |
| 2010 | 4 | 17 |
| 2011 | 6 | 15 |
| 2012 | 6 | 16 |
| 2013 | 10 | 9 |
| 2014 | 12 | 9 |
| 2015 | 10 | 24 |
| 2016 | 12 | 14 |
| 2017 | 14 | 17 |
| 2018 | 13 | 23 |
| 2019 | 16 | 16 |
| 2020 | 14 | 4 |
| 2021 | 9 | 4 |
| 2022 | 4 | 5 |
| 2023 | 4 | 5 |
| 2024 | 4 | 5 |
| 2025 | 3 | 4 |
| 2026 | 4 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Process for preparing zeolite material having an AFX framework structure and zeolite material as prepared9 Jun 2026US 12,649,666 B2BASF Mobile Emissions Catalysts LLC
- SCR catalyst having excellent sulfur tolerance24 Mar 2026US 12,582,973 B2Posco Holdings Inc.
- Catalytic material for treating an exhaust gas produced by a natural gas engine10 Feb 2026US 12,544,743 B2Johnson Matthey Public Limited Company
- Hydrogen oxidation catalysts for hydrogen-internal combustion engine systems13 Jan 2026US 12,523,169 B2BASF Mobile Emissions Catalysts LLC
- Exhaust gas treatment system for controlling hydrocarbon adsorption/desorption in hydrocarbon trap24 Jun 2025US 12,338,762 B2GM Global Technology Operations LLC
- Composite of manganese-based oxide and zeolite useful as nh3-scr catalyst24 Sep 2026US 2026/0284594 A1
- Catalyst system9 Jul 2026US 2026/0192288 A1Johnson Matthey Public Limited Company
- Method for increasing loading capacity of honeycomb catalyst support and preparation of denitrification catalyst based on catalyst support30 Apr 2026US 2026/0115693 A1Fuzhou University
- Preparation method for and use of molecular sieve-based honeycomb monolithic denitrification catalyst30 Apr 2026US 2026/0115704 A1Fuzhou University
- Abatement apparatus and method18 Dec 2025US 2025/0381520 A1
Most cited
By later US patents
- Plasma fuel processing for NOx control of lean burn engines101US 6,176,078 B1Engelhard Corporation · 2001
- Catalytic system for the reducton of nitrogen oxides100US 5,589,147 AMobil Oil Corporation · 1996
- Lean-burn nox catalyst/nox trap system83US 5,727,385 AFord Global Technologies, LLC · 1998
- Reactor system for reducing NOx emissions from boilers80US 7,943,097 B2Catalytic Solutions, Inc. · 2011
- Process and catalyst for reducing nitrogen oxides47US 6,843,971 B2Umicore AG & Co. KG · 2005