C02F 2201/324
Lamp cleaning installations
Official title: Lamp cleaning installations, e.g. brushes
C02F2201/324 (Lamp cleaning installations) appears on 128 US grants and 119 published applications in this corpus.
Search patents in C02F- Granted patents
- 128
- Published applications
- 119
- Assignees
- 76
- Inventors
- 241
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 8 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 6 | 0 |
| 2000 | 4 | 0 |
| 2001 | 5 | 1 |
| 2002 | 4 | 1 |
| 2003 | 6 | 4 |
| 2004 | 1 | 8 |
| 2005 | 4 | 8 |
| 2006 | 6 | 3 |
| 2007 | 2 | 3 |
| 2008 | 5 | 10 |
| 2009 | 2 | 2 |
| 2010 | 5 | 1 |
| 2011 | 4 | 11 |
| 2012 | 3 | 13 |
| 2013 | 6 | 6 |
| 2014 | 4 | 7 |
| 2015 | 1 | 6 |
| 2016 | 2 | 3 |
| 2017 | 3 | 5 |
| 2018 | 0 | 3 |
| 2019 | 4 | 6 |
| 2020 | 5 | 4 |
| 2021 | 4 | 1 |
| 2022 | 0 | 4 |
| 2023 | 3 | 4 |
| 2024 | 1 | 3 |
| 2025 | 3 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Apparatus and method for disinfecting fluids29 Sep 2026US 12,747,169 B2Hiigenz LLC
- Device for cleaning a surface4 Nov 2025US 12,460,161 B2Trojan Technologies Group Ulc
- Water treatment device15 Jul 2025US 12,358,816 B2
- Cleaning arrangement for a liquid treatment system4 Mar 2025US 12,240,769 B2Wallenius Water Innovation AB
- Apparatus and method for disinfecting fluids18 Jun 2024US 12,012,340 B2Hygenz LLC
- Fluid treatment unit24 Apr 2025US 2025/0128968 A1Ultraaqua A/S
- Fluid sterilization device27 Mar 2025US 2025/0100903 A1Toshiba Lighting & Technology Corporation
- Apparatus and method for disinfecting fluids5 Dec 2024US 2024/0400420 A1Hiigenz LLC
- Ph dependent soluble polymers25 Jan 2024US 2024/0026253 A1Trojan Technologies Group Ulc
- Device for monitoring degradation of wastewater from nuclear power plant decontamination and operation method thereof25 Jan 2024US 2024/0029908 A1Korea Hydro & Nuclear Power Co., Ltd.
Most cited
By later US patents
- Water treatment system for swimming pools and potable water151US 4,752,401 ASafe Water Systems International, Inc. · 1988
- Waste purification apparatus and method58US 4,367,410 APure Water Systems, Inc. · 1983
- Apparatus for the irradiation of fluids57US 4,002,918 A1977
- Treatment of fluids with electromagnetic radiation54US 5,832,361 A1998
- UV reactor assembly with improved lamp cooling means53US 5,372,781 ASolarchem Enterprises Inc. · 1994