C02F 2201/3227
Units with two or more lamps
C02F2201/3227 (Units with two or more lamps) appears on 483 US grants and 622 published applications in this corpus.
Search patents in C02F- Granted patents
- 483
- Published applications
- 622
- Assignees
- 320
- Inventors
- 1,087
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 4 | 0 |
| 1989 | 3 | 0 |
| 1990 | 7 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 7 | 0 |
| 1995 | 6 | 0 |
| 1996 | 7 | 0 |
| 1997 | 5 | 0 |
| 1998 | 2 | 0 |
| 1999 | 5 | 0 |
| 2000 | 6 | 0 |
| 2001 | 13 | 1 |
| 2002 | 9 | 11 |
| 2003 | 18 | 13 |
| 2004 | 9 | 13 |
| 2005 | 7 | 17 |
| 2006 | 10 | 19 |
| 2007 | 6 | 10 |
| 2008 | 13 | 16 |
| 2009 | 11 | 12 |
| 2010 | 11 | 19 |
| 2011 | 6 | 25 |
| 2012 | 11 | 26 |
| 2013 | 15 | 24 |
| 2014 | 18 | 33 |
| 2015 | 19 | 34 |
| 2016 | 16 | 31 |
| 2017 | 17 | 32 |
| 2018 | 18 | 29 |
| 2019 | 29 | 32 |
| 2020 | 28 | 33 |
| 2021 | 25 | 46 |
| 2022 | 21 | 26 |
| 2023 | 23 | 23 |
| 2024 | 19 | 36 |
| 2025 | 23 | 39 |
| 2026 | 12 | 22 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- UV reaction apparatus for treating waste liquid caused by system decontamination in nuclear power plant18 Aug 2026US 12,709,556 B2Korea Hydro & Nuclear Power Co., Ltd.
- Apparatus for sterilizing a liquid7 Jul 2026US 12,673,882 B2OSRAM GmbH
- Methods of PFAS destruction using UV irradiation at 222 nanometers16 Jun 2026US 12,655,051 B2Claros Technologies Inc.
- Metal working fluid decontamination apparatus21 Apr 2026US 12,605,474 B2
- Device and method for sterilising a fluid flowing therethrough24 Mar 2026US 12,583,768 B2OSRAM GmbH
- Fluid sterilization module and dental cleaning device24 Sep 2026US 2026/0283765 A1Xiamen Aihu Dental Technology Co., Ltd.
- Ultraviolet generator24 Sep 2026US 2026/0284247 A1Evoqua Water Technologies LLC
- Water treatment apparatus for decomposing perfluorinated compound on basis of vacuum ultraviolet rays24 Sep 2026US 2026/0285710 A1Seoul National University R&Db Foundation
- Uv-led assembly with pcb substrate integrated into housing24 Sep 2026US 2026/0285711 A1Trojan Technologies Group Ulc
- Methods of PFAS Destruction using UV Irradiation at 222 Nanometers17 Sep 2026US 2026/0274731 A1Claros Technologies Inc.
Most cited
By later US patents
- Apparatus for sanitizing liquids with ultra-violet radiation and ozone108US 4,179,616 AThetford Corporation · 1979
- Device for irradiating flowing liquids and/or gases with UV light89US 5,200,156 AWedeco Gesellschaft fur Entkeimungsanlagen mbH · 1993
- Apparatus for irradiating media with UV-light88US 4,948,980 AWedeco Gesellschaft fur Entkeimungsanlagen mbH · 1990
- Ultraviolet lamp rack assembly87US 5,019,256 AFischer & Porter Co. · 1991
- Compact high-throughput ultraviolet processing chamber87US 5,124,131 AUltraviolet Energy Generators, Inc. · 1992