Inventor · disambiguated record
Dwight B. Pfenning
Also filed as: HIGGINBOTTOM LONNIE C · PFENNING DWIGHT B
2 granted patents·234 citations·filing 1977–1988
71Inventor score
Top patents by PatentIndex Score
2 records- 0180US4174925AApparatus for exchanging energy between high and low pressure systemsCEDOMIR M SLIEPCEVICH·Filed 1977·Granted Nov 20, 1979·58 cites·24 claims
- 0279US4929818AMethod and apparatus for vending a containerized product on multiple occasions following at least one refill of the container with the productRAINBARREL CORP·Filed 1988·Granted May 29, 1990·176 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →