Inventor · disambiguated record

David A. Heffner

Also filed as: HEFFNER DAVID A

2 granted patents·117 citations·filing 1987–1989

68Inventor score

Technology areasB09C Y10S

Files withCHEVRON RES1 CHEVRON RES & TECH1

Top patents by PatentIndex Score

2 records

0187US4765902AProcess for in situ biodegradation of hydrocarbon contaminated soilCHEVRON RES·Filed 1987·Granted Aug 23, 1988·84 cites·11 claims
0274US5017289AProcess for in situ biodegradation of hydrocarbon contaminated soilCHEVRON RES & TECH·Filed 1989·Granted May 21, 1991·33 cites·24 claims

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