Inventor

David G. Stewart

Inventor

Epsom, GB

Overview

1979–1989

Patent span

Chemistry

Primary field (CPC C)

Patents· 25 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 chemistry29%

C07CAcyclic or carbocyclic compounds26%

Y02PClimate change mitigation technologies in the production or processing of goods18%

C01BNon-metallic elements14%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests11%

C10LFuels not otherwise provided for2%

G02BOptical elements, systems or apparatus2%

PatentTitleYear

4,878,729'Optical switch'1989 4,585,799'Catalyst composition, method for its production and its use in the production of hydrocarbons from synthesis gas'1986 4,581,471'Process for the production of unsaturated carboxylic acids and/or esters'1986 4,576,968'Catalyst composition and its use in a process for the production of alcohols from synthesis gas'1986 4,567,160'Catalyst composition for the production of alcohols from synthesis gas'1986 4,542,117'Catalyst composition, method for its production'1985 4,497,969'Process for the production of catalysts based on crystalline aluminosilicates and the use of catalyst so produced'1985 4,492,773'Process for the production of C.sub.1 to C.sub.4 oxygenated hydrocarbons by the catalytic conversion of synthesis gas'1985 4,492,772'Process for the production of oxygenated hydrocarbons by the catalytic conversion of synthesis gas'1985 4,478,806'Crystalline aluminosilicates'1984 4,452,907'Process for the production of crystalline aluminosilicates and their use as catalysts and catalyst supports'1984 4,452,908'Process for the production of catalysts based on crystalline aluminosilicates'1984 4,407,728'Method for producing crystalline aluminosilicates and their use as catalysts and catalyst supports'1983 4,376,104'Method for preparing crystalline aluminosilicates'1983 4,357,480'Process for the production of ethanol by the liquid phase hydrocarbonylation of methanol'1982 4,354,049'Process for the production of aromatic hydrocarbons'1982 4,346,021'Method for producing aluminosilicates, their use as catalysts and supports and method for producing catalysts therefrom'1982 4,327,190'Process for the production of C.sub.1 to C.sub.4 oxygenated hydrocarbons'1982 4,323,475'Process for the production of amorphous aluminosilicates and their use as catalysts'1982 4,319,056'Process for the hydrocarbonylation of methanol to ethanol in the presence of an inert liquid'1982 4,299,732'Process for the production of amorphous aluminosilicates and their use as catalysts'1981 4,262,154'Process for the production of ethanol and/or acetaldehyde by reacting methanol with synthesis gas'1981 4,242,233'Method for preparing aluminosilicates, their use as catalyst supports and catalysts, and method for producing catalysts therefrom'1980 4,205,190'Process for the hydrocarbonylation of methanol to ethanol in the presence of added oxygen-containing organic compounds'1980 4,175,115'Process for the production of synthesis gas by the catalyzed decomposition of methanol'1979

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1979–1985Patents assigned to BRITISH PETROLEUM CO (17)· patent assignee history

1979–1986Based in Epsom, GB· patent location history

1984–1986Patents assigned to BRITISH PETROLEUM CO PLC (7)· patent assignee history

1986Based in Epson, GB· patent location history

1989Patents assigned to SQUARE D CO (1)· patent assignee history

1989Based in Livingstone, ZA· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
BRITISH PETROLEUM CO	17	1979–1985
BRITISH PETROLEUM CO PLC	7	1984–1986
SQUARE D CO	1	1989

Locations

Location	Patents	Span
Epsom, GB	23	1979–1986
Livingstone, ZA	1	1989
Epson, GB	1	1986