Inventor · disambiguated record
Ronald Barker
Also filed as: BARKER RONALD · BARKER RONALD D
4 granted patents·1 pending application·215 citations·filing 1978–2004
81Inventor score
Top patents by PatentIndex Score
5 records- 0185US6892942B1Roadside control device for a toll apparatus installed in a motor vehicleVODAFONE HOLDING GMBH·Filed 1999·Granted May 17, 2005·103 cites·20 claims
- 0255US4246538AMethod of investigating the electrical resistivity of the ground and apparatus for use in the methodBARKER RONALD D·Filed 1978·Granted Jan 20, 1981·14 cites·10 claims
- 0353US6388581B1Method and system for monitoring the proper operation of a debiting deviceMANNESMANN AG·Filed 1999·Granted May 14, 2002·27 cites·13 claims
- 0447US6816707B1Debiting device for deducting tollsVODAFONE HOLDING GMBH·Filed 1999·Granted Nov 9, 2004·71 cites·14 claims
- 0537US2008077649A1Method and System for Carrying Out Transactions Between Units in a NetworkBARKER RONALD·Filed 2004·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →