Inventor · disambiguated record
Paul Franklin Steel
Also filed as: STEEL PAUL FRANKLIN
5 granted patents·115 citations·filing 1976–2008
81Inventor score
Top patents by PatentIndex Score
5 records- 0184US4113983AInput filtering apparatus for loudspeakersTELEDYNE ACOUSTIC RESEARCH·Filed 1976·Granted Sep 12, 1978·34 cites·8 claims
- 0272US6705448B1Method and apparatus for validating currencyMARS INC·Filed 1999·Granted Mar 16, 2004·50 cites·21 claims
- 0351US5715926AMoney validationMARS INC·Filed 1995·Granted Feb 10, 1998·16 cites·20 claims
- 0448US5971128AApparatus for validating items of value, and method of calibrating such apparatusMARS INC·Filed 1995·Granted Oct 26, 1999·15 cites·12 claims
- 0544US8849572B2Apparatus for determining the concentration of a conductive fluid present in a fluid filled boreholeMASON GUY HARVEY·Filed 2008·Granted Sep 30, 2014·0 cites·18 claims
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