Y10T 137/5421
Piston type valve
Y10T137/5421 (Piston type valve) appears on 5 US grants and 0 published applications in this corpus.
Search patents in Y10T- Granted patents
- 5
- Published applications
- 0
- Assignees
- 3
- Inventors
- 4
- Latest grant
- 2 Apr 2013
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Yard hydrant with improved valve2 Apr 2013US 8,408,238 B1
- Hydrant design30 Jan 2001US 6,178,988 B2Baker Manufacturing Company
- Yard hydrant1 Mar 1994US 5,289,840 AMerrill Manufacturing Company
- Yard hydrant8 Feb 1983US 4,372,339 AMerrill Manufacturing Company
- Sanitary yard hydrant29 Aug 1978US 4,109,671 AIndustrial Value Analysis Inc.
No published applications in this class yet.
Most cited
By later US patents
- Sanitary yard hydrant27US 4,109,671 AIndustrial Value Analysis Inc. · 1978
- Yard hydrant13US 4,372,339 AMerrill Manufacturing Company · 1983
- Hydrant design8US 6,178,988 B2Baker Manufacturing Company · 2001
- Yard hydrant6US 5,289,840 AMerrill Manufacturing Company · 1994
- Yard hydrant with improved valve6US 8,408,238 B12013