B01D 35/043
Reversible faucet filters
Official title: {Reversible faucet filters}
B01D35/043 (Reversible faucet filters) appears on 66 US grants and 9 published applications in this corpus.
Search patents in B01D- Granted patents
- 66
- Published applications
- 9
- Assignees
- 32
- Inventors
- 112
- Latest grant
- 30 Nov 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 6 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 5 | 0 |
| 1997 | 2 | 0 |
| 1998 | 9 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 4 | 1 |
| 2002 | 2 | 1 |
| 2003 | 1 | 2 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 1 |
| 2021 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Filter attachment30 Nov 2021US 11,185,805 B2Sawyer Products, Inc.
- Offset filtered showerhead29 Nov 2016US 9,504,940 B2
- Dual-flow filter cartridge5 Oct 2004US 6,800,200 B2Cuno Incorporated
- Faucet-mounted water filtration device3 Jun 2003US 6,571,960 B2Kimberly-Clark Worldwide, Inc.
- Faucet assembly with a filtering device disposed in a faucet body15 Oct 2002US 6,464,871 B1Globe Union Industrial Corp.
- Filter attachment9 Sep 2021US 2021/0275946 A1Sawyer Products, Inc.
- Multistage shower water filter and water filtering method6 Aug 2020US 2020/0247700 A1
- Water outlet fitting with drinking water filter19 Dec 2019US 2019/0382986 A1Franke Technology and Trademark Ltd
- Offset filtered showerhead22 Oct 2015US 2015/0298143 A1
- Dual-flow filter cartridge24 Feb 2005US 2005/0040097 A1
Most cited
By later US patents
- Water treatment device with volume totalization valve104US 5,527,451 ARecovery Engineering, Inc. · 1996
- Water filter apparatus94US 4,686,037 ATeledyne Industries, Inc. · 1987
- Water filter92US 4,504,389 AAssociated Mills, Inc. · 1985
- Faucet-mounted water treatment device76US 5,928,504 ARecovery Engineering, Inc. · 1999
- Faucet having multiple water discharges73US 5,823,229 AMoen Incorporated · 1998