Inventor
CALDWELL DAVID W
US45 patents
⚠️ This page may combine multiple inventors who share the name “CALDWELL DAVID W”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOUCHSENSOR TECH LLC
15 patentsUS7098414B2Aug 29, 2006
Integrated touch sensor and light apparatus
TOUCHSENSOR TECH LLC121 citations99
US6713897B2Mar 30, 2004
Touch switch with integral control circuit
TOUCHSENSOR TECH LLC121 citations99
US6320282B1Nov 20, 2001
Touch switch with integral control circuit
TOUCHSENSOR TECH LLC937 citations99
US6310611B1Oct 30, 2001
Differential touch sensor and control circuit therefor
TOUCHSENSOR TECH LLC1,027 citations99
USRE42199EMar 8, 2011
Integrated touch sensor and light apparatus
TOUCHSENSOR TECH LLC57 citations98
US7361860B2Apr 22, 2008
Integrated touch sensor and light apparatus
TOUCHSENSOR TECH LLC74 citations98
US7242393B2Jul 10, 2007
Touch sensor with integrated decoration
TOUCHSENSOR TECH LLC84 citations98
US7030513B2Apr 18, 2006
Touch switch with integral control circuit
TOUCHSENSOR TECH LLC96 citations98
US7260438B2Aug 21, 2007
Intelligent shelving system
TOUCHSENSOR TECH LLC70 citations97
US7175304B2Feb 13, 2007
Integrated low profile display
TOUCHSENSOR TECH LLC60 citations97
US6897390B2May 24, 2005
Molded/integrated touch switch/control panel assembly and method for making same
TOUCHSENSOR TECH LLC167 citations97
US7218498B2May 15, 2007
Touch switch with integral control circuit
TOUCHSENSOR TECH LLC57 citations96
US6944018B2Sep 13, 2005
Control system input apparatus and method
TOUCHSENSOR TECH LLC62 citations96
US7840286B2Nov 23, 2010
Intelligent shelving system
TOUCHSENSOR TECH LLC41 citations94
US7906875B2Mar 15, 2011
Touch switches and practical applications therefor
TOUCHSENSOR TECH LLC17 citations90
ALSENTIS LLC
8 patentsUS9851834B2Dec 26, 2017
Time domain differential techniques to characterize various stimuli
ALSENTIS LLC6 citations79
US12429985B2Sep 30, 2025
Simultaneous time domain differential sensing and electric field sensing
ALSENTIS LLC0 citations62
US11730910B2Aug 22, 2023
Simultaneous time domain differential sensing and electric field sensing
ALSENTIS LLC0 citations62
US11592942B2Feb 28, 2023
Simultaneous time domain differential sensing and electric field sensing
ALSENTIS LLC0 citations62
US11592943B2Feb 28, 2023
Simultaneous time domain differential sensing and electric field sensing
ALSENTIS LLC0 citations62
US11561652B2Jan 24, 2023
Simultaneous time domain differential sensing and electric field sensing
ALSENTIS LLC0 citations62
US10248264B2Apr 2, 2019
Apparatus and method for determining a stimulus, including a touch input and a stylus input
ALSENTIS LLC1 citations58
US10185439B2Jan 22, 2019
Time domain differential techniques to characterize various stimuli
ALSENTIS LLC0 citations47
DONNELLY CORP
6 patentsUS5289365AFeb 22, 1994
Modular network control system
DONNELLY CORP187 citations99
US5239152AAug 24, 1993
Touch sensor panel with hidden graphic mode
DONNELLY CORP432 citations99
US5189417AFeb 23, 1993
Detection circuit for matrix touch pad
DONNELLY CORP116 citations98
US5164609ANov 17, 1992
Controllable power distribution system
DONNELLY CORP118 citations97
US5157273AOct 20, 1992
Modular power outlet strip
DONNELLY CORP66 citations96
US5153572AOct 6, 1992
Touch-sensitive control circuit
DONNELLY CORP93 citations96
CALDWELL DAVID W
6 patentsUS8135482B2Mar 13, 2012
Intelligent shelving system
CALDWELL DAVID W55 citations95
US8866497B2Oct 21, 2014
Apparatus and method for determining a touch input
CALDWELL DAVID W4 citations71
US9306561B2Apr 5, 2016
Touch switches and practical applications therefor
CALDWELL DAVID W3 citations70
US4099477AJul 11, 1978
Engine powered water craft
CALDWELL DAVID W6 citations62
US8307549B2Nov 13, 2012
Method of making an electrical circuit
CALDWELL DAVID W4 citations60
US8227940B2Jul 24, 2012
Touch switches and practical applications therefor
CALDWELL DAVID W2 citations59