B01D 2255/802
Photocatalytic
B01D2255/802 (Photocatalytic) appears on 508 US grants and 813 published applications in this corpus.
Search patents in B01D- Granted patents
- 508
- Published applications
- 813
- Assignees
- 481
- Inventors
- 1,780
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 4 | 0 |
| 1997 | 5 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 10 | 0 |
| 2001 | 7 | 5 |
| 2002 | 9 | 16 |
| 2003 | 14 | 20 |
| 2004 | 15 | 30 |
| 2005 | 8 | 37 |
| 2006 | 7 | 26 |
| 2007 | 12 | 25 |
| 2008 | 10 | 26 |
| 2009 | 10 | 37 |
| 2010 | 23 | 32 |
| 2011 | 15 | 26 |
| 2012 | 11 | 32 |
| 2013 | 24 | 32 |
| 2014 | 15 | 23 |
| 2015 | 23 | 27 |
| 2016 | 20 | 28 |
| 2017 | 14 | 26 |
| 2018 | 16 | 32 |
| 2019 | 25 | 36 |
| 2020 | 23 | 42 |
| 2021 | 22 | 58 |
| 2022 | 26 | 53 |
| 2023 | 41 | 57 |
| 2024 | 32 | 39 |
| 2025 | 31 | 32 |
| 2026 | 25 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Photocatalytic air treatment29 Sep 2026US 12,746,509 B2Dyson Technology Limited
- Photocatalyst filter and electronic device comprising same15 Sep 2026US 12,734,266 B2Samsung Electronics Co., Ltd.
- Filter for air purification and manufacturing method thereof15 Sep 2026US 12,734,512 B2Hyundai Motor Company
- Air purifier15 Sep 2026US 12,736,443 B2Samsung Electronics Co., Ltd.
- Air purifier with air treatment basket30 Jun 2026US 12,667,809 B2BISSELL Inc.
- V2alc@v2o5/tio2 heterojunction composite photocatalyst, preparation method, and application thereof10 Sep 2026US 2026/0264054 A1United Arab Emirates University
- Multi-step defluorination of mixtures of fluorinated compounds10 Sep 2026US 2026/0265162 A1International Business Machines Corporation
- Electronic nose for rapid detection23 Jul 2026US 2026/0210922 A1Ainos, Inc.
- Photocatalytic sanitizing device with condensation system16 Jul 2026US 2026/0199834 A1Universidad De Guadalajara
- Intelligent networked energy recovery ventilator16 Jul 2026US 2026/0202081 A1Microjet Technology Co., Ltd.
Most cited
By later US patents
- Titanium dioxide photo-catalyzer130US 5,919,422 AToyoda Gosei Co., Ltd. · 1999
- Architectural material using metal oxide exhibiting photocatalytic activity112US 5,595,813 ATakenaka Corporation · 1997
- Titanium dioxide photocatalyst84US 6,387,844 B12002
- Magnetic activated carbon and the removal of contaminants from fluid streams84US 7,879,136 B2Engineering Performance Solutions, LLC · 2011
- Method and apparatus for destroying organic compounds in fluid74US 5,501,801 ABoard of Control of Michigan Technology University · 1996