Inventor
JOHNSON CHARLES A
US31 patents
⚠️ This page may combine multiple inventors who share the name “JOHNSON CHARLES A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
AMTECH SYSTEMS LLC
9 patentsUS8344886B2Jan 1, 2013
RFID vehicle tag with manually adjustable data fields
AMTECH SYSTEMS LLC18 citations92
US9313559B2Apr 12, 2016
Automatic mode detection in a dual operating mode RFID tag
AMTECH SYSTEMS LLC8 citations83
US10275949B2Apr 30, 2019
RFID vehicle tag with manually adjustable data fields
AMTECH SYSTEMS LLC1 citations73
US9305404B2Apr 5, 2016
RFID vehicle tag with manually adjustable data fields
AMTECH SYSTEMS LLC3 citations73
US10607044B2Mar 31, 2020
Automatic mode detection in a dual operating mode RFID tag
AMTECH SYSTEMS LLC0 citations51
US10346648B2Jul 9, 2019
Automatic mode detection in a dual operating mode RFID tag
AMTECH SYSTEMS LLC0 citations51
US9996715B2Jun 12, 2018
Automatic mode detection in a dual operating mode RFID tag
AMTECH SYSTEMS LLC0 citations51
US9607190B2Mar 28, 2017
Automatic mode detection in a dual operating mode RFID tag
AMTECH SYSTEMS LLC0 citations51
US8770472B2Jul 8, 2014
System and method for automated HOV lane toll collection
AMTECH SYSTEMS LLC0 citations45
GRAVELLE KELLY
4 patentsUS8836511B2Sep 16, 2014
RFID vehicle tag with manually adjustable data fields
GRAVELLE KELLY4 citations83
US8618916B2Dec 31, 2013
Automatic mode detection in a dual operating mode RFID tag
GRAVELLE KELLY3 citations73
US8279048B2Oct 2, 2012
RFID tag with piezoelectric sensor for power and input data
GRAVELLE KELLY3 citations62
US8514080B2Aug 20, 2013
RFID tag with occupancy status recall
GRAVELLE KELLY0 citations51
TC LICENSE LTD
3 patentsUS7557715B1Jul 7, 2009
Destructible RFID transponder
TC LICENSE LTD35 citations90
US7791481B2Sep 7, 2010
Light activated RFID tag
TC LICENSE LTD50 citations89
US7928831B1Apr 19, 2011
System and method for handling user keys and user passwords in a tagging system where the tag itself is capable of carrying only a single key or password
TC LICENSE LTD1 citations42
JOHNSON CHARLES A
3 patentsHOME CURTAIN CORP
3 patentsUS4087297AMay 2, 1978
Hand held welding device, and method of using same
HOME CURTAIN CORP19 citations81
US4088519AMay 9, 1978
Heat control for ultrasonic pattern rolls
HOME CURTAIN CORP7 citations73
US4060438ANov 29, 1977
Process for imparting color on a discrete basis to the thermally fused portion of quilted synthetic resinous materials
HOME CURTAIN CORP16 citations73