C02F 1/006
Water distributors either inside a treatment tank or directing the water to
Official title: {Water distributors either inside a treatment tank or directing the water to several treatment tanks; Water treatment plants incorporating these distributors, with or without chemical or biological tanks (for settling tanks B01D21/24)}
C02F1/006 (Water distributors either inside a treatment tank or directing the water to) appears on 561 US grants and 653 published applications in this corpus.
Search patents in C02F- Granted patents
- 561
- Published applications
- 653
- Assignees
- 438
- Inventors
- 1,466
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 4 | 0 |
| 1978 | 4 | 0 |
| 1979 | 6 | 0 |
| 1980 | 1 | 0 |
| 1981 | 7 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 7 | 0 |
| 1987 | 7 | 0 |
| 1988 | 6 | 0 |
| 1989 | 9 | 0 |
| 1990 | 1 | 0 |
| 1991 | 6 | 0 |
| 1992 | 8 | 0 |
| 1993 | 5 | 0 |
| 1994 | 10 | 0 |
| 1995 | 3 | 0 |
| 1996 | 6 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 2 | 0 |
| 2001 | 7 | 2 |
| 2002 | 9 | 4 |
| 2003 | 6 | 8 |
| 2004 | 6 | 15 |
| 2005 | 7 | 16 |
| 2006 | 8 | 37 |
| 2007 | 15 | 14 |
| 2008 | 8 | 31 |
| 2009 | 14 | 23 |
| 2010 | 18 | 35 |
| 2011 | 13 | 37 |
| 2012 | 20 | 38 |
| 2013 | 16 | 34 |
| 2014 | 24 | 35 |
| 2015 | 22 | 21 |
| 2016 | 18 | 26 |
| 2017 | 20 | 19 |
| 2018 | 19 | 25 |
| 2019 | 27 | 25 |
| 2020 | 25 | 38 |
| 2021 | 27 | 43 |
| 2022 | 32 | 42 |
| 2023 | 26 | 29 |
| 2024 | 21 | 22 |
| 2025 | 19 | 12 |
| 2026 | 20 | 22 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Electrochemical nitrogen and phosphorus removal device and method29 Sep 2026US 12,747,176 B2Beijing Drainage Group Co., Ltd
- System condition detection using inlet pressure8 Sep 2026US 12,729,519 B2Fluid Handling LLC
- Wafer cleaning water supply system and wafer cleaning water supply method1 Sep 2026US 12,727,422 B2Kurita Water Industries Ltd.
- Filter assembly25 Aug 2026US 12,715,785 B2Samsung Electronics Co., Ltd.
- Soft-water system25 Aug 2026US 12,715,795 B2Kyungdong Navien Co., Ltd.
- Ultrapure water processing system with water hammer shock mitigation function17 Sep 2026US 2026/0274710 A1Flowtech Co., Ltd.
- Bathroom system20 Aug 2026US 2026/0243065 A1Kohler Co.
- Dispensing device for purified water6 Aug 2026US 2026/0225918 A1Merck Patent GmbH
- Scum removal system in sewage treatment plant30 Jul 2026US 2026/0217571 A1Utsunomiya Kogyo Co., Ltd.
- Arrangement and method for treatment of water in a vessel for culture of marine organisms30 Jul 2026US 2026/0217578 A1Searas AS
Most cited
By later US patents
- Control of activated sludge wastewater treating process for enhanced phosphorous removal105US 4,271,026 AAir Products and Chemicals, Inc. · 1981
- Multiple zone batch treatment process102US 5,192,442 AZimpro Passavant Environmental Systems, Inc. · 1993
- Apparatus and method for continuous depyrogenation and production of sterile water for injection95US 7,122,149 B2Applied Research Associates, Inc. · 2006
- Equipment for treating waste water94US 4,824,563 AMeidensha Corporation · 1989
- Water reuse system89US 4,162,218 A1979