C02F 1/003
Using household-type filters for producing potable water
Official title: {using household-type filters for producing potable water, e.g. pitchers, bottles, faucet mounted devices (C02F9/20 takes precedence)}
C02F1/003 (Using household-type filters for producing potable water) appears on 1,279 US grants and 1,423 published applications in this corpus.
Search patents in C02F- Granted patents
- 1,279
- Published applications
- 1,423
- Assignees
- 617
- Inventors
- 2,529
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 4 | 0 |
| 1979 | 6 | 0 |
| 1980 | 5 | 0 |
| 1981 | 6 | 0 |
| 1982 | 4 | 0 |
| 1983 | 3 | 0 |
| 1984 | 0 | 0 |
| 1985 | 9 | 0 |
| 1986 | 6 | 0 |
| 1987 | 16 | 0 |
| 1988 | 13 | 0 |
| 1989 | 13 | 0 |
| 1990 | 11 | 0 |
| 1991 | 20 | 0 |
| 1992 | 29 | 0 |
| 1993 | 24 | 0 |
| 1994 | 15 | 0 |
| 1995 | 17 | 0 |
| 1996 | 26 | 0 |
| 1997 | 25 | 0 |
| 1998 | 21 | 0 |
| 1999 | 31 | 0 |
| 2000 | 36 | 0 |
| 2001 | 40 | 7 |
| 2002 | 34 | 32 |
| 2003 | 32 | 41 |
| 2004 | 13 | 27 |
| 2005 | 20 | 48 |
| 2006 | 16 | 43 |
| 2007 | 20 | 30 |
| 2008 | 16 | 29 |
| 2009 | 13 | 34 |
| 2010 | 16 | 45 |
| 2011 | 17 | 34 |
| 2012 | 26 | 40 |
| 2013 | 29 | 39 |
| 2014 | 24 | 68 |
| 2015 | 29 | 56 |
| 2016 | 30 | 83 |
| 2017 | 39 | 71 |
| 2018 | 60 | 83 |
| 2019 | 63 | 99 |
| 2020 | 75 | 99 |
| 2021 | 70 | 60 |
| 2022 | 60 | 75 |
| 2023 | 50 | 76 |
| 2024 | 38 | 77 |
| 2025 | 62 | 69 |
| 2026 | 44 | 58 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Shower system with a filter6 Oct 2026US 12,753,092 B2
- Water filtration assembly and freeze prevention22 Sep 2026US 12,741,885 B2Haier US Appliance Solutions, Inc.
- Automatic shutoff valve for a water filter assembly15 Sep 2026US 12,734,468 B2Haier US Appliance Solutions, Inc.
- Filtering shower assembly system8 Sep 2026US 12,729,137 B2
- Water mixing device and water purifier including the same1 Sep 2026US 12,724,435 B2Coway Co., Ltd.
- Automated liquid dispensing device8 Oct 2026US 2026/0305569 A1Automated Pet Care Products, LLC d/b/a WHISKER
- Gravity-flow filter assembly1 Oct 2026US 2026/0296921 A1Hydros Bottle, LLC
- A water treatment cartridge1 Oct 2026US 2026/0296943 A1HCL Technologies Limited
- Water filtration assembly and method for assembly24 Sep 2026US 2026/0284561 A1Haier US Appliance Solutions, Inc.
- Water filtration assembly and method for electronics assembly24 Sep 2026US 2026/0285706 A1Haier US Appliance Solutions, Inc.
Most cited
By later US patents
- Combination therapies for B-cell lymphomas comprising administration of anti-CD20 antibody199US 6,455,043 B1IDEC Pharmaceuticals Corporation · 2002
- Quick-change filter cartridge and head therefor175US 4,735,716 ACuno Corporated · 1988
- Personal water filter bottle system161US 6,569,329 B1Innova Pure Water Inc. · 2003
- Electronic monitoring unit for monitoring number of uses of cartridge155US 5,328,597 AThe Clorox Company · 1994
- Water treatment device having means to count times used and limit useage145US 5,190,643 AMr. Coffee, Inc. · 1993