Inventor · disambiguated record
David A. Evens
Also filed as: EVENS DAVID A
4 granted patents·28 citations·filing 1974–1992
74Inventor score
Top patents by PatentIndex Score
4 records- 0140US4906334ABroke pulping apparatus and reel stand with brakeLAKE SUPERIOR PAPER IND·Filed 1989·Granted Mar 6, 1990·8 cites·7 claims
- 0236US4013423AFluid cat cracker apparatusCONTINENTAL OIL CO·Filed 1974·Granted Mar 22, 1977·6 cites·2 claims
- 0335US4416323AAir cooler freeze protectionCONOCO INC·Filed 1980·Granted Nov 22, 1983·8 cites·4 claims
- 0430US5236475APapermaking apparatus including bafflesLAKE SUPERIOR PAPER IND·Filed 1992·Granted Aug 17, 1993·6 cites·13 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →