Individual holder
WALTON CHARLES A
20 granted patents·5 pending applications·2,068 citations·filing 1978–2005
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
25 records- 0199US4654658AIdentification system with vector phase angle detectionWALTON CHARLES A·Filed 1984·Granted Mar 31, 1987·127 cites·9 claims
- 0297US4980539APortable warmerWALTON CHARLES A·Filed 1990·Granted Dec 25, 1990·132 cites·9 claims
- 0395US4384288APortable radio frequency emitting identifierWALTON CHARLES A·Filed 1980·Granted May 17, 1983·261 cites·5 claims
- 0494US4546241AElectronic proximity identification systemWALTON CHARLES A·Filed 1982·Granted Oct 8, 1985·215 cites·8 claims
- 0594US4236068APersonal identification and signaling systemWALTON CHARLES A·Filed 1979·Granted Nov 25, 1980·126 cites·26 claims
- 0694US4223830AIdentification systemWALTON CHARLES A·Filed 1978·Granted Sep 23, 1980·128 cites·13 claims
- 0791US4388524AElectronic identification and recognition system with code changeable reactanceWALTON CHARLES A·Filed 1981·Granted Jun 14, 1983·156 cites·15 claims
- 0890US4782342AProximity identification system with lateral flux pathsWALTON CHARLES A·Filed 1986·Granted Nov 1, 1988·74 cites·28 claims
- 0990US4473825AElectronic identification system with power input-output interlock and increased capabilitiesWALTON CHARLES A·Filed 1982·Granted Sep 25, 1984·154 cites·12 claims
- 1088US4580041AElectronic proximity identification system with simplified low power identifierWALTON CHARLES A·Filed 1983·Granted Apr 1, 1986·134 cites·10 claims
- 1185US4600829AElectronic proximity identification and recognition system with isolated two-way couplingWALTON CHARLES A·Filed 1984·Granted Jul 15, 1986·111 cites·12 claims
- 1282US4202350ADevice for measuring pulse, breathing and running rate for joggersWALTON CHARLES A·Filed 1978·Granted May 13, 1980·96 cites·3 claims
- 1378US4459474AIdentification system with separation and direction capability and improved noise rejectionWALTON CHARLES A·Filed 1981·Granted Jul 10, 1984·74 cites·6 claims
- 1473US4656472AProximity identification system with power aided identifierWALTON CHARLES A·Filed 1985·Granted Apr 7, 1987·93 cites·24 claims
- 1566US5342116AProgrammer's anti-slump chair with knee supportWALTON CHARLES A·Filed 1992·Granted Aug 30, 1994·33 cites·20 claims
- 1665US5021778ACapacitance coupled proximity identification systemWALTON CHARLES A·Filed 1989·Granted Jun 4, 1991·62 cites·10 claims
- 1758US5159332AProximity identification system with flux concentration in operating regionWALTON CHARLES A·Filed 1991·Granted Oct 27, 1992·29 cites·2 claims
- 1858US4307728APortable device for measuring heartbeat rate with compensation for extraneous signalsWALTON CHARLES A·Filed 1979·Granted Dec 29, 1981·30 cites·2 claims
- 1953US2007093367A1Back treatment with slant table and user adjustmentsWALTON CHARLES A·Filed 2005·Application pending·0 cites
- 2052US2006152364A1RFID with field changeable identificationWALTON CHARLES A·Filed 2004·Application pending·0 cites
- 2150US2007017558A1Surface cleaner with multiple angled orificesWALTON CHARLES A·Filed 2005·Application pending·0 cites
- 2248US2007093323A1Ball for racquetball with training markingsWALTON CHARLES A·Filed 2005·Application pending·0 cites
- 2348US2005219951A1Finding underground animals using transducer probesWALTON CHARLES A·Filed 2004·Application pending·0 cites
- 2443US5022099ARadiation helmetWALTON CHARLES A·Filed 1990·Granted Jun 11, 1991·25 cites·4 claims
- 2542US4888474AProximity identification system with lateral flux magnetic rod couplingWALTON CHARLES A·Filed 1988·Granted Dec 19, 1989·8 cites·31 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →