Inventor

Lewis E. Drehman

Inventor

Bartlesville, OK, US

Overview

1976–1985

Patent span

Chemistry

Primary field (CPC C)

Patents· 15 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

B01Jprimary

B01JChemical or physical processes, e.g. catalysis or colloid chemistry35%

C07CAcyclic or carbocyclic compounds27%

C10GCracking hydrocarbon oils27%

C10LFuels not otherwise provided for4%

D21HPulp compositions4%

Y02PClimate change mitigation technologies in the production or processing of goods4%

PatentTitleYear

4,520,223'Dehydrogenation process'1985 4,431,750'Platinum group metal catalyst on the surface of a support and a process for preparing same'1984 4,389,305'Catalytic hydrodenitrogenation of organic compounds employing promoted zinc titanate'1983 4,333,855'Promoted zinc titanate as catalytic agent'1982 4,263,132'Catalytic reforming and hydrocracking of organic compounds employing promoted zinc titanate as the catalytic agent'1981 4,263,133'Catalytic reforming and hydrocracking of organic compounds employing zinc titanate as the catalytic agent'1981 4,191,846'Catalytic dehydrogenation process'1980 4,169,815'Catalyst for dehydrogenation process'1979 4,167,472'Hydrocarbon treating process'1979 4,152,365'Selective hydrogenation of polyenes'1979 4,053,533'Oxidation of acetylenic impurities with copper manganite catalyst'1977 4,049,743'Selective oxidation of acetylenes'1977 4,035,433'Selective oxidation of acetylenes'1977 4,000,206'Process for the production of benzene, cyclohexane and motor fuel from a C.sub.6 hydrocarbon stream'1976 3,957,688'Catalytic dehydrogenation process'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1984Patents assigned to PHILLIPS PETROLEUM CO (14)· patent assignee history

1976–1985Based in Bartlesville, OK, US· patent location history

1985Patents assigned to DREHMAN LEWIS E (1)· patent assignee history

1985Patents assigned to MCGINNIS ROGER N (1)· patent assignee history

1985Patents assigned to PITZER EMORY W (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
PHILLIPS PETROLEUM CO	14	1976–1984
DREHMAN LEWIS Eself	1	1985
MCGINNIS ROGER N	1	1985
PITZER EMORY W	1	1985

Locations

Location	Patents	Span
Bartlesville, OK, US	15	1976–1985