Inventor · disambiguated record
David J. Francis
Also filed as: FRANCIS DAVID · FRANCIS DAVID J
3 granted patents·104 citations·filing 1976–1999
75Inventor score
Top patents by PatentIndex Score
3 records- 0188US6780369B1Method of finishing plastic concrete mixtureFACE INTERNAT CORP·Filed 1999·Granted Aug 24, 2004·55 cites·5 claims
- 0275US4996092AShaped foamMINNESOTA MINING & MFG·Filed 1990·Granted Feb 26, 1991·36 cites·24 claims
- 0355US4057185AMethod and means for operating a pair of pinch rollsARMCO STEEL CORP·Filed 1976·Granted Nov 8, 1977·13 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →