Y10T 137/3149
Back flow prevention by vacuum breaking [e.g., anti-siphon devices]
Y10T137/3149 (Back flow prevention by vacuum breaking [e.g., anti-siphon devices]) appears on 512 US grants and 187 published applications in this corpus.
Search patents in Y10T- Granted patents
- 512
- Published applications
- 187
- Assignees
- 249
- Inventors
- 633
- Latest grant
- 19 Nov 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 12 | 0 |
| 1978 | 6 | 0 |
| 1979 | 5 | 0 |
| 1980 | 16 | 0 |
| 1981 | 9 | 0 |
| 1982 | 9 | 0 |
| 1983 | 7 | 0 |
| 1984 | 11 | 0 |
| 1985 | 16 | 0 |
| 1986 | 8 | 0 |
| 1987 | 17 | 0 |
| 1988 | 3 | 0 |
| 1989 | 16 | 0 |
| 1990 | 21 | 0 |
| 1991 | 20 | 0 |
| 1992 | 11 | 0 |
| 1993 | 14 | 0 |
| 1994 | 13 | 0 |
| 1995 | 6 | 0 |
| 1996 | 17 | 0 |
| 1997 | 12 | 0 |
| 1998 | 16 | 0 |
| 1999 | 21 | 0 |
| 2000 | 15 | 0 |
| 2001 | 11 | 1 |
| 2002 | 15 | 5 |
| 2003 | 11 | 9 |
| 2004 | 13 | 17 |
| 2005 | 9 | 7 |
| 2006 | 11 | 20 |
| 2007 | 6 | 15 |
| 2008 | 10 | 15 |
| 2009 | 7 | 14 |
| 2010 | 6 | 8 |
| 2011 | 12 | 11 |
| 2012 | 16 | 17 |
| 2013 | 11 | 6 |
| 2014 | 15 | 11 |
| 2015 | 8 | 6 |
| 2016 | 10 | 6 |
| 2017 | 8 | 5 |
| 2018 | 4 | 4 |
| 2019 | 4 | 2 |
| 2020 | 2 | 3 |
| 2021 | 5 | 3 |
| 2022 | 5 | 0 |
| 2023 | 1 | 1 |
| 2024 | 1 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
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.
- Decorative air gap cap cover15 Feb 2022US 11,248,369 B2United Air Gap Covers Inc.
- 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.
- Decorative air gap cap cover18 Feb 2021US 2021/0047814 A1United Air Gap Covers 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
- Accessory faucet79US 4,635,673 AWPM, Inc. · 1987
- Check valve assembly and method for mounting and installing check valves within a housing73US 5,584,315 AAmes Company, Inc. · 1996