P

Inventor

HITZMAN DONALD O

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

PHILLIPS PETROLEUM CO

28 patents
US4450908AMay 29, 1984

Enhanced oil recovery process using microorganisms

PHILLIPS PETROLEUM CO135 citations96
US4446919AMay 8, 1984

Enhanced oil recovery using microorganisms

PHILLIPS PETROLEUM CO93 citations96
US4414334ANov 8, 1983

Oxygen scavenging with enzymes

PHILLIPS PETROLEUM CO125 citations96
US5165477ANov 24, 1992

Enzymatic decomposition of drilling mud

PHILLIPS PETROLEUM CO79 citations95
US4798801AJan 17, 1989

Production of methane by anaerobic fermentation of waste materials

PHILLIPS PETROLEUM CO38 citations92
US4044500AAug 30, 1977

Integrated fermentation-photosynthesis biomass process

PHILLIPS PETROLEUM CO44 citations92
US5126051AJun 30, 1992

Enzymatic decomposition of drilling mud

PHILLIPS PETROLEUM CO37 citations91
US4681758AJul 21, 1987

Shaped, flavored articles and method of producing same

PHILLIPS PETROLEUM CO30 citations90
US4540052ASep 10, 1985

Generation of microorganism control composition and use thereof

PHILLIPS PETROLEUM CO22 citations82
US4519984AMay 28, 1985

Apparatus for carrying out sparged reaction

PHILLIPS PETROLEUM CO26 citations82
US3982998ASep 28, 1976

Methanol foam fermentation to single cell protein by microorganisms

PHILLIPS PETROLEUM CO23 citations82
US4596778AJun 24, 1986

Single cell protein from sulfur energy sources

PHILLIPS PETROLEUM CO10 citations74
US4556635ADec 3, 1985

Determination of alcohol content in water imiscible organic systems

PHILLIPS PETROLEUM CO13 citations74
US4518489AMay 21, 1985

Oil Treatment

PHILLIPS PETROLEUM CO11 citations74
US4515700AMay 7, 1985

Gelled acid composition

PHILLIPS PETROLEUM CO8 citations74
US4302542ANov 24, 1981

Fermentation with thermophilic mixed cultures

PHILLIPS PETROLEUM CO10 citations74
US4145445AMar 20, 1979

Process for protein production

PHILLIPS PETROLEUM CO11 citations74
US4113017ASep 12, 1978

Hot effluent from partial oxidation of natural gas injected in oil recovery process

PHILLIPS PETROLEUM CO7 citations74
US4096073AJun 20, 1978

Microbial viscosifiers

PHILLIPS PETROLEUM CO11 citations74
US3981774ASep 21, 1976

Fermentation of oxygenated hydrocarbon compounds with thermophilic microorganisms

PHILLIPS PETROLEUM CO13 citations74
US3975234AAug 17, 1976

Microbial production of dicarboxylic acids

PHILLIPS PETROLEUM CO7 citations74
US3965985AJun 29, 1976

Microbial synthesis from aldehyde containing hydrocarbon derived products

PHILLIPS PETROLEUM CO8 citations74
US4439523AMar 27, 1984

Production of single cell protein material

PHILLIPS PETROLEUM CO7 citations73
US4399223AAug 16, 1983

Cellular product separation

PHILLIPS PETROLEUM CO6 citations73
US4380584AApr 19, 1983

Fermentation apparatus

PHILLIPS PETROLEUM CO4 citations63
US4340677AJul 20, 1982

Fermentation process

PHILLIPS PETROLEUM CO5 citations63
US3958038AMay 18, 1976

Recovery of cellular protein products from microbiological synthesis masses

PHILLIPS PETROLEUM CO2 citations63
US4169762AOct 2, 1979

Self-toxification process for aerobic fermentation

PHILLIPS PETROLEUM CO1 citations52

GEO MICROBIAL TECH INC

6 patents

NITRA GEN LLC

3 patents

LATA GROUP INC

2 patents

PROVESTA CORP

2 patents