C02F 1/30
Treatment of water, waste water, or sewage: by irradiation
Official title: by irradiation
C02F1/30 (Treatment of water, waste water, or sewage: by irradiation) appears on 3,747 US grants and 4,573 published applications in this corpus.
Search patents in C02F- Granted patents
- 3,747
- Published applications
- 4,573
- Assignees
- 2,232
- Inventors
- 8,442
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 13 | 0 |
| 1977 | 13 | 0 |
| 1978 | 8 | 0 |
| 1979 | 11 | 0 |
| 1980 | 18 | 0 |
| 1981 | 17 | 0 |
| 1982 | 10 | 0 |
| 1983 | 5 | 0 |
| 1984 | 8 | 0 |
| 1985 | 4 | 0 |
| 1986 | 12 | 0 |
| 1987 | 8 | 0 |
| 1988 | 21 | 0 |
| 1989 | 24 | 0 |
| 1990 | 30 | 0 |
| 1991 | 38 | 0 |
| 1992 | 37 | 0 |
| 1993 | 38 | 0 |
| 1994 | 41 | 0 |
| 1995 | 51 | 0 |
| 1996 | 56 | 0 |
| 1997 | 31 | 0 |
| 1998 | 50 | 0 |
| 1999 | 68 | 0 |
| 2000 | 66 | 0 |
| 2001 | 77 | 16 |
| 2002 | 83 | 97 |
| 2003 | 101 | 109 |
| 2004 | 87 | 116 |
| 2005 | 62 | 166 |
| 2006 | 87 | 169 |
| 2007 | 71 | 129 |
| 2008 | 75 | 153 |
| 2009 | 71 | 141 |
| 2010 | 94 | 155 |
| 2011 | 82 | 181 |
| 2012 | 82 | 158 |
| 2013 | 114 | 159 |
| 2014 | 120 | 202 |
| 2015 | 117 | 166 |
| 2016 | 116 | 193 |
| 2017 | 131 | 210 |
| 2018 | 129 | 233 |
| 2019 | 153 | 249 |
| 2020 | 210 | 251 |
| 2021 | 210 | 245 |
| 2022 | 164 | 248 |
| 2023 | 174 | 229 |
| 2024 | 168 | 221 |
| 2025 | 185 | 191 |
| 2026 | 106 | 186 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Control center box and flexible bathtub6 Oct 2026US 12,751,582 B2Jiaxing Virpol Sanitary Ware co., LTD.
- Water treatment apparatus and water treatment method6 Oct 2026US 12,753,097 B2Organo Corporation
- Water purification system29 Sep 2026US 12,747,167 B2Fermi Forward Discovery Group, LLC
- Fluid sterilization device29 Sep 2026US 12,747,168 B2Toyoda Gosei Co., Ltd.
- Apparatus and method for disinfecting fluids29 Sep 2026US 12,747,169 B2Hiigenz LLC
- Automated liquid dispensing device8 Oct 2026US 2026/0305569 A1Automated Pet Care Products, LLC d/b/a WHISKER
- Systems, Methods, and Apparatuses for Producing and Packaging Medical Fluids8 Oct 2026US 2026/0307835 A1
- Sterilizing apparatus8 Oct 2026US 2026/0308021 A1Seoul Visoys Co., Ltd.
- Methods and systems for continuous pfas destruction1 Oct 2026US 2026/0296928 A1Claros Technologies Inc.
- Method for degradation of pfas based on sonocatalysis1 Oct 2026US 2026/0296932 A1Schlumberger Technology Corporation
Most cited
By later US patents
- UV-emitting phosphor and lamp containing same525US 7,396,491 B2Osram Sylvania Inc. · 2008
- Electrochemical production of ozone and hydrogen peroxide465US 5,972,196 ALynntech, Inc. · 1999
- Inductively coupled ballast circuit436US 6,825,620 B2Access Business Group International LLC · 2004
- Water treatment system with an inductively coupled ballast432US 6,436,299 B1Amway Corporation · 2002
- Inductively powered lamp assembly370US 6,731,071 B2Access Business Group International LLC · 2004