Inventor

PEDERSEN LARRY D

US4 patents

⚠️ This page may combine multiple inventors who share the name “PEDERSEN LARRY D”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

GETTY OIL CO

2 patents

US4548721AOct 22, 1985

Method of enhanced oil recovery and compositions useful therein

GETTY OIL CO20 citations80

US4611659ASep 16, 1986

Oxidized alkali lignins and their use in enhanced oil recovery

GETTY OIL CO22 citations79

TEXACO PRODUCING INC

1 patent

US5114599AMay 19, 1992

Use of lignin/amine/surfactant blends in enhanced oil recovery

TEXACO PRODUCING INC20 citations76

DEBONS FRANCIS E

1 patent

US4822501AApr 18, 1989

Use of lignin/amine/surfactant blends in enhanced oil recovery

DEBONS FRANCIS E15 citations68