Inventor · disambiguated record

John M. Elsen

Also filed as: ELSEN JOHN M

1 granted patent·34 citations·filing 1986–1986

45Inventor score

Technology areasC09K

Files withPHILLIPS PETROLEUM CO1

Top patents by PatentIndex Score

1 record

0176US4743383ADrilling fluid additives for use in hard brine environmentsPHILLIPS PETROLEUM CO·Filed 1986·Granted May 10, 1988·34 cites·17 claims

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