Inventor
TENDLER ROBERT K
US34 patents
⚠️ This page may combine multiple inventors who share the name “TENDLER ROBERT K”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TENDLER ROBERT K
19 patentsUS4937796AJun 26, 1990
Vehicle backing aid
TENDLER ROBERT K393 citations99
US4833477AMay 23, 1989
Emergency vessel location system
TENDLER ROBERT K144 citations98
US8172393B2May 8, 2012
Method and apparatus for viewing polarized displays
TENDLER ROBERT K16 citations92
US8060117B1Nov 15, 2011
Location based information system
TENDLER ROBERT K17 citations92
US7844282B1Nov 30, 2010
Location based information system
TENDLER ROBERT K12 citations92
US7374282B2May 20, 2008
Method and apparatus for viewing polarized displays
TENDLER ROBERT K21 citations92
US5231699AJul 27, 1993
Dual watch radio system
TENDLER ROBERT K21 citations92
US5163158ANov 10, 1992
Modular communications system including a portable unit range extender and selective-call system
TENDLER ROBERT K43 citations91
US5073972ADec 17, 1991
Modular communications system including a portable unit range extender and selective-call system
TENDLER ROBERT K43 citations91
US8380224B1Feb 19, 2013
Location based information system
TENDLER ROBERT K8 citations84
US5187978AFeb 23, 1993
Knotmeter impeller eliminator system
TENDLER ROBERT K19 citations82
US4672590AJun 9, 1987
Talking depth sounder
TENDLER ROBERT K15 citations74
US4621348ANov 4, 1986
Talking depth sounder
TENDLER ROBERT K8 citations74
US4616350AOct 7, 1986
Talking depth sounder
TENDLER ROBERT K10 citations74
US4489405ADec 18, 1984
Talking depth sounder
TENDLER ROBERT K12 citations74
US4309016AJan 5, 1982
Wall hanger
TENDLER ROBERT K13 citations74
US4916674AApr 10, 1990
Method and apparatus for improving the shallow water performance of a depth sounder
TENDLER ROBERT K4 citations63
US4498655AFeb 12, 1985
Wall hanger
TENDLER ROBERT K4 citations63
US4918671AApr 17, 1990
Depth sounder operation for hostile environments
TENDLER ROBERT K0 citations52
TENDLER CELLULAR INC
11 patentsUS7447508B1Nov 4, 2008
Location based information system
TENDLER CELLULAR INC94 citations99
US7050818B2May 23, 2006
Location based service request system
TENDLER CELLULAR INC97 citations99
US6778820B2Aug 17, 2004
Method and apparatus for assuring that a telephone wager is placed within the wagering jurisdiction
TENDLER CELLULAR INC296 citations99
US6519463B2Feb 11, 2003
Location based service request system
TENDLER CELLULAR INC322 citations99
US6014555AJan 11, 2000
System for providing the telephone number of a telephone making an emergency call
TENDLER CELLULAR INC153 citations99
US5736962AApr 7, 1998
Time since last fix annunciation system for GPS-based wireless rescue system
TENDLER CELLULAR INC175 citations99
US5598460AJan 28, 1997
Emergency back-up system for enhancing reliability or rescue
TENDLER CELLULAR INC199 citations99
US6516198B1Feb 4, 2003
System for location reporting
TENDLER CELLULAR INC93 citations98
US7305243B1Dec 4, 2007
Location based information system
TENDLER CELLULAR INC27 citations92
US7164921B2Jan 16, 2007
Auxiliary switch activated GPS-equipped wireless phone
TENDLER CELLULAR INC92 citations92
US5649059AJul 15, 1997
Alpha-numeric verbal scroll technique for use in an emergency location system
TENDLER CELLULAR INC36 citations86
TRAPANI GIORGIO
3 patentsUS9372353B2Jun 21, 2016
Method and apparatus for forming sunglass lenses with a predetermined gradient
TRAPANI GIORGIO6 citations81
US9678364B2Jun 13, 2017
Method and apparatus for forming sunglass lenses with a predetermined gradient
TRAPANI GIORGIO2 citations70
US9128302B2Sep 8, 2015
Method and apparatus for making polarized sunglasses
TRAPANI GIORGIO0 citations49