Y10S 250/90
Optical liquid level sensors
Y10S250/90 (Optical liquid level sensors) appears on 111 US grants and 18 published applications in this corpus.
Search patents in Y10S- Granted patents
- 111
- Published applications
- 18
- Assignees
- 78
- Inventors
- 167
- Latest grant
- 17 Jun 2014
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 4 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 5 | 0 |
| 1988 | 3 | 0 |
| 1989 | 4 | 0 |
| 1990 | 10 | 0 |
| 1991 | 5 | 0 |
| 1992 | 1 | 0 |
| 1993 | 5 | 0 |
| 1994 | 7 | 0 |
| 1995 | 6 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 0 |
| 2002 | 3 | 4 |
| 2003 | 4 | 3 |
| 2004 | 3 | 3 |
| 2005 | 3 | 0 |
| 2006 | 4 | 2 |
| 2007 | 2 | 2 |
| 2008 | 1 | 1 |
| 2009 | 0 | 0 |
| 2010 | 2 | 1 |
| 2011 | 1 | 1 |
| 2012 | 1 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
Most cited
By later US patents
- Fill-level indicator for a liquefied-petroleum-gas tank290US 6,658,933 B2Clesse Industries · 2003
- Optical fuel level sensor141US 6,668,645 B1TI Group Automotive Systems, L.L.C. · 2003
- Fiber optic detection system120US 5,362,971 ATerrascope Systems, Inc. · 1994
- Ink tank with an ink level detector having a viewing window105US 5,616,929 AFuji Xerox Co., Ltd. · 1997
- Optical position sensor for determining the interface between a clear and an opaque fluid72US 7,049,622 B1Sandia Corporation · 2006