Inventor · disambiguated record

Doug J. Mccallum

Also filed as: MCCALLUM DOUG J

2 granted patents·72 citations·filing 1989–1990

66Inventor score

Technology areasE21B

Files withCHEVRON RES1 CHEVRON RES & TECH1

Top patents by PatentIndex Score

2 records

0166US5131471ASingle well injection and production systemCHEVRON RES & TECH·Filed 1990·Granted Jul 21, 1992·50 cites·11 claims
0249US5024275AMethod of recovering hydrocarbons using single well injection/production systemCHEVRON RES·Filed 1989·Granted Jun 18, 1991·22 cites·12 claims

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →