C02F 2201/3221
Lamps suspended above a water surface or pipe
C02F2201/3221 (Lamps suspended above a water surface or pipe) appears on 119 US grants and 129 published applications in this corpus.
Search patents in C02F- Granted patents
- 119
- Published applications
- 129
- Assignees
- 94
- Inventors
- 272
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 0 |
| 2002 | 7 | 8 |
| 2003 | 6 | 6 |
| 2004 | 8 | 4 |
| 2005 | 2 | 3 |
| 2006 | 1 | 3 |
| 2007 | 3 | 5 |
| 2008 | 0 | 4 |
| 2009 | 4 | 1 |
| 2010 | 2 | 5 |
| 2011 | 3 | 5 |
| 2012 | 1 | 4 |
| 2013 | 3 | 1 |
| 2014 | 3 | 4 |
| 2015 | 2 | 7 |
| 2016 | 2 | 4 |
| 2017 | 4 | 11 |
| 2018 | 6 | 7 |
| 2019 | 6 | 7 |
| 2020 | 4 | 8 |
| 2021 | 6 | 4 |
| 2022 | 4 | 7 |
| 2023 | 2 | 6 |
| 2024 | 2 | 5 |
| 2025 | 3 | 6 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Drinking water dispenser with built-in UV sterilization system23 Jun 2026US 12,662,399 B2Scandinavian Innovation Group Oy
- UV disinfectant system27 Jan 2026US 12,533,433 B2Safe Foods Corporation
- Fluid disinfection apparatus and methods18 Nov 2025US 12,473,213 B2The University of British Columbia
- Ultraviolet light disinfection apparatus, control box and massage pool22 Apr 2025US 12,281,031 B2Oriental Recreational Products (Shanghai) Co., Ltd
- Ultraviolet light for sump water treatment7 Jan 2025US 12,187,627 B1
- Methods and systems for pfas destruction using photochemical/electrochemical reduction of reagents16 Jul 2026US 2026/0200765 A1Claros Technologies Inc.
- Fluid treatment device28 May 2026US 2026/0145968 A1Seoul Viosys Co., Ltd.
- Uv disinfectant system9 Apr 2026US 2026/0097141 A1Safe Foods Corporation
- Bottled water dispenser with a system for treating water in a bottle with UV radiation12 Mar 2026US 2026/0070816 A1Scandinavian Innovation Group Oy
- Drinking Water Dispenser with Built-in UV Sterilization System6 Nov 2025US 2025/0340461 A1Scandinavian Innovation Group Oy
Most cited
By later US patents
- Water purification system108US 5,227,053 AConventure Corporation · 1993
- UV water disinfector96US 5,780,860 AThe Regents of the University of California · 1998
- Ultraviolet wastewater disinfection system and method83US 6,403,030 B12002
- Ultraviolet fluid disinfection system and method82US 6,447,720 B1Remotelight, Inc. · 2002
- Portable ultraviolet water sterilizer76US 4,755,292 A1988