Inventor · disambiguated record
Ralph Ferguson
Also filed as: FERGUSON RALPH · FERGUSON RALPH C
3 granted patents·124 citations·filing 1986–2004
73Inventor score
Top patents by PatentIndex Score
3 records- 0181US7014355B2Electronic parking meter systemINNOVAPARK COMPANY LLC·Filed 2001·Granted Mar 21, 2006·94 cites·30 claims
- 0257US7274302B2Light emitting diode traffic control deviceUSA SIGNAL TECHNOLOGY LLC·Filed 2004·Granted Sep 25, 2007·26 cites·26 claims
- 0322US4723868AApparatus for installing circular traffic loopsFERGUSON RALPH C·Filed 1986·Granted Feb 9, 1988·4 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →