Y10T 137/3331
With co-acting valve in liquid flow path
Y10T137/3331 (With co-acting valve in liquid flow path) appears on 292 US grants and 88 published applications in this corpus.
Search patents in Y10T- Granted patents
- 292
- Published applications
- 88
- Assignees
- 144
- Inventors
- 324
- Latest grant
- 19 Nov 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 7 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 10 | 0 |
| 1981 | 7 | 0 |
| 1982 | 7 | 0 |
| 1983 | 3 | 0 |
| 1984 | 5 | 0 |
| 1985 | 10 | 0 |
| 1986 | 8 | 0 |
| 1987 | 9 | 0 |
| 1988 | 2 | 0 |
| 1989 | 6 | 0 |
| 1990 | 15 | 0 |
| 1991 | 12 | 0 |
| 1992 | 9 | 0 |
| 1993 | 9 | 0 |
| 1994 | 7 | 0 |
| 1995 | 4 | 0 |
| 1996 | 10 | 0 |
| 1997 | 6 | 0 |
| 1998 | 8 | 0 |
| 1999 | 9 | 0 |
| 2000 | 13 | 0 |
| 2001 | 6 | 1 |
| 2002 | 8 | 4 |
| 2003 | 9 | 7 |
| 2004 | 12 | 13 |
| 2005 | 8 | 3 |
| 2006 | 6 | 10 |
| 2007 | 2 | 9 |
| 2008 | 2 | 7 |
| 2009 | 3 | 5 |
| 2010 | 3 | 4 |
| 2011 | 7 | 3 |
| 2012 | 8 | 5 |
| 2013 | 2 | 1 |
| 2014 | 5 | 4 |
| 2015 | 3 | 2 |
| 2016 | 6 | 2 |
| 2017 | 4 | 1 |
| 2018 | 2 | 1 |
| 2019 | 2 | 2 |
| 2020 | 0 | 0 |
| 2021 | 2 | 2 |
| 2022 | 3 | 0 |
| 2023 | 1 | 1 |
| 2024 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Vacuum breaker valve19 Nov 2024US 12,146,599 B2
- Automatic draining back flow prevention device17 Oct 2023US 11,788,264 B2WCM Industries, Inc.
- Automatic draining back flow prevention device11 Oct 2022US 11,466,438 B2WCM Industries, Inc.
- Backflow prevention device with reduced pressure zone30 Aug 2022US 11,428,334 B2Giacomini S.p. A.
- Integrated one way valve25 Jan 2022US 11,231,118 B1Hanon Systems
- Vacuum Breaker Valve24 Oct 2024US 2024/0353045 A1
- Automatic draining back flow prevention device23 Feb 2023US 2023/0058099 A1WCM Industries, Inc.
- Automatic draining back flow prevention device7 Oct 2021US 2021/0310223 A1WCM Industries, Inc.
- Backflow prevention device with reduced pressure zone2 Sep 2021US 2021/0270377 A1Giacomini S.p. A.
- Automatic draining back flow prevention device17 Oct 2019US 2019/0316333 A1WCM Industries, Inc.
Most cited
By later US patents
- Tub transfer-diverter valve with built-in vacuum breaker and back-flow preventer105US 4,953,585 ARubinet Brass Canada Limited · 1990
- Hand spray mounts with integral backflow prevention91US 6,611,971 B1I. W. Industries, Inc. · 2003
- In line back flow preventer82US 4,284,097 AAmtrol Inc. · 1981
- Check valve assembly and method for mounting and installing check valves within a housing73US 5,584,315 AAmes Company, Inc. · 1996
- Backflow preventer and relief valve assembly72US 3,996,962 ARockwell International Corporation · 1976