Y10T 137/4658
With auxiliary means for varying liquid level
Y10T137/4658 (With auxiliary means for varying liquid level) appears on 17 US grants and 2 published applications in this corpus.
Search patents in Y10T- Granted patents
- 17
- Published applications
- 2
- Assignees
- 11
- Inventors
- 22
- Latest grant
- 17 Dec 2013
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 2 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Method for reducing the air feed from the atmosphere into the expansion vessel of high-voltage systems filled with insulating liquid and device for carrying out the method17 Dec 2013US 8,607,813 B2Gatron Corporation
- Sewer system vent monitor22 Sep 2009US 7,591,278 B1
- Method and apparatus for shifting speeds in a fluid-actuated motor28 Apr 2009US 7,523,792 B2National-Oilwell, L. P.
- System and method for monitoring wet bulb temperature in a flue gas stream7 Mar 1989US 4,809,537 AElectric Power Research Institute, Inc.
- Ventilated toilet31 Jan 1989US 4,800,596 A
- Method for reducing the air feed from the atmosphere into the expansion vessel of high-voltage systems filled with insulating liquid and device for carrying out the method19 May 2011US 2011/0114364 A1Gatron Corporation
- Method and apparatus for shifting speeds in a fluid-actuated motor2 Nov 2006US 2006/0243493 A1National-Oilwell, L. P.
Most cited
By later US patents
- Ventilated toilet24US 4,800,596 A1989
- Method and apparatus for shifting speeds in a fluid-actuated motor23US 7,523,792 B2National-Oilwell, L. P. · 2009
- System and method for monitoring wet bulb temperature in a flue gas stream14US 4,809,537 AElectric Power Research Institute, Inc. · 1989
- Liquid seal vent10US 4,773,441 A1988
- Liquid seal valve7US 4,411,286 APeabody Holmes Limited · 1983