C02F 1/687
Devices for dosing solid compounds
Official title: {Devices for dosing solid compounds}
C02F1/687 (Devices for dosing solid compounds) appears on 157 US grants and 182 published applications in this corpus.
Search patents in C02F- Granted patents
- 157
- Published applications
- 182
- Assignees
- 126
- Inventors
- 356
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 4 | 1 |
| 2003 | 1 | 4 |
| 2004 | 2 | 4 |
| 2005 | 2 | 5 |
| 2006 | 5 | 4 |
| 2007 | 3 | 3 |
| 2008 | 2 | 5 |
| 2009 | 1 | 3 |
| 2010 | 3 | 10 |
| 2011 | 3 | 3 |
| 2012 | 2 | 9 |
| 2013 | 3 | 11 |
| 2014 | 3 | 4 |
| 2015 | 8 | 6 |
| 2016 | 5 | 8 |
| 2017 | 6 | 6 |
| 2018 | 9 | 11 |
| 2019 | 6 | 6 |
| 2020 | 11 | 12 |
| 2021 | 10 | 14 |
| 2022 | 6 | 14 |
| 2023 | 10 | 8 |
| 2024 | 4 | 11 |
| 2025 | 11 | 7 |
| 2026 | 7 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Filter for controlling pH of purified water and water purifier including the same22 Sep 2026US 12,741,892 B2Coway Co., Ltd.
- Introduction of an additive to water12 May 2026US 12,623,898 B1Brita LP
- Environmental treatment distribution systems and methods14 Apr 2026US 12,599,116 B2Lillianah Technologies Inc.
- System and method for producing alkaline water having pH stability and increased mineral content7 Apr 2026US 12,595,192 B2Generosity Water, Inc.
- Device for distributing mineralized water and associated method10 Mar 2026US 12,570,561 B2
- Self-mediated saltless whole home water treatment systems and methods27 Aug 2026US 2026/0250172 A1Pentair Residential Filtration, LLC
- Environmental treatment distribution systems and methods20 Aug 2026US 2026/0240126 A1Lillianah Technologies Inc.
- Drainpipe biocide delivery apparatus30 Jul 2026US 2026/0216388 A1
- System and method for producing alkaline water having ph stability and increased mineral content23 Jul 2026US 2026/0209078 A1Generosity Water, Inc.
- Waterborne Cleaning Robot with Sterilization Function23 Jul 2026US 2026/0209090 A1Ningbo SurgeEdge Management Co., Ltd
Most cited
By later US patents
- Apparatus for treating effluents71US 5,145,256 AEnvironmental Equipment Corporation · 1992
- Fluid container having an additive dispensing system66US 7,670,479 B2PUR Water Purification, Inc. · 2010
- Continuous polymer feed system for a waste water treatment plant50US 4,470,907 ANoranda Mines Limited · 1984
- Water filtration vessel45US 5,922,378 A1999
- Metering and wetting system41US 4,077,612 A1978