C02F 1/002
Using small portable filters for producing potable water
Official title: {using small portable filters for producing potable water, e.g. personal travel or emergency equipment, survival kits, combat gear (C02F1/003 takes precedence)}
C02F1/002 (Using small portable filters for producing potable water) appears on 308 US grants and 417 published applications in this corpus.
Search patents in C02F- Granted patents
- 308
- Published applications
- 417
- Assignees
- 248
- Inventors
- 890
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 5 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 4 | 0 |
| 1989 | 4 | 0 |
| 1990 | 1 | 0 |
| 1991 | 8 | 0 |
| 1992 | 5 | 0 |
| 1993 | 2 | 0 |
| 1994 | 4 | 0 |
| 1995 | 4 | 0 |
| 1996 | 7 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 5 | 0 |
| 2002 | 7 | 4 |
| 2003 | 1 | 1 |
| 2004 | 1 | 8 |
| 2005 | 4 | 9 |
| 2006 | 2 | 7 |
| 2007 | 1 | 8 |
| 2008 | 6 | 13 |
| 2009 | 5 | 10 |
| 2010 | 4 | 28 |
| 2011 | 3 | 18 |
| 2012 | 13 | 19 |
| 2013 | 12 | 21 |
| 2014 | 11 | 30 |
| 2015 | 15 | 22 |
| 2016 | 4 | 26 |
| 2017 | 17 | 23 |
| 2018 | 16 | 27 |
| 2019 | 18 | 24 |
| 2020 | 22 | 29 |
| 2021 | 20 | 16 |
| 2022 | 16 | 21 |
| 2023 | 10 | 11 |
| 2024 | 12 | 14 |
| 2025 | 13 | 13 |
| 2026 | 7 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Pure water systems25 Aug 2026US 12,715,790 B2Unger Marketing International, LLC
- Pressing surface for filtration container assembly11 Aug 2026US 12,702,941 B2Grayl Inc.
- Portable water bottle cap with built-in filter28 Jul 2026US 12,692,050 B2Envioneer Co., Ltd
- Water-recycling personal care device and system16 Jun 2026US 12,653,352 B2ELC Management LLC
- Filtering container for liquids31 Mar 2026US 12,590,016 B2Laica S.P.A.
- Filter for drinking straw13 Aug 2026US 2026/0232123 A1AGA Imports LLC
- Pen shaped handheld apparatus for generating a water from an ambient humid air6 Aug 2026US 2026/0225935 A1Majmaah University
- Filter system for handheld containers of consumable liquids2 Jul 2026US 2026/0184600 A1Cap Zero, LLC
- Water filtration device25 Jun 2026US 2026/0176160 A1Caware Filtering Corporation
- Water Filtration and Storage Device25 Jun 2026US 2026/0176161 A1
Most cited
By later US patents
- Filtering apparatus97US 4,828,698 APall Corporation · 1989
- Personal water purification systems93US 5,273,649 A1993
- Bottle with an integrated filtration assembly that is manually operated using a plunger90US 8,313,644 B2OZOlab · 2012
- Enhanced in-bottle filtration mechanism and techniques84US 6,136,189 AInnova Pure Water Inc. · 2000
- Universal filter for soda pop and bottled water bottles84US 6,395,170 B12002