Y10S 16/21
Checks, closers, check valve construction
Y10S16/21 (Checks, closers, check valve construction) appears on 25 US grants and 2 published applications in this corpus.
Search patents in Y10S- Granted patents
- 25
- Published applications
- 2
- Assignees
- 16
- Inventors
- 36
- Latest grant
- 4 Jan 2011
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 4 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 3 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Door damper4 Jan 2011US 7,861,371 B2Moonju Hardware Co., Ltd
- Damper for a pivot door3 Sep 2002US 6,442,795 B1Girefa Enterprise Co., Ltd.
- Door closer20 Aug 2002US 6,434,788 B1
- Door stop13 Aug 2002US 6,430,775 B1Expanded Technologies Corp.
- Door closer with hydraulic back checking17 Jul 2001US 6,260,236 B1Jackson Corporation
Most cited
By later US patents
- Door and window closer48US 4,003,102 A1977
- Door stop45US 4,831,688 A1989
- Hydraulic door closer45US 4,847,946 ASam Kyong Hardware Co., Ltd. · 1989
- Door closer incorporating self-cleaning and temperature compensating flow control valve43US 4,573,238 ANewman-Tonks Engineering Limited · 1986
- Door closer41US 4,999,872 ADorma GmbH + Co. KG · 1991