Inventor

Louis Hegedus

Inventor

Rockville, MD, US

Overview

23→

Patents

1977–1992

Patent span

Performing operations

Primary field (CPC B)

Patents· 23 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 chemistry22%

B01DSeparation19%

Y02TClimate change mitigation technologies related to transportation14%

F01NGas-flow silencers or exhaust apparatus for machines or engines in general8%

C25BElectrolytic or electrophoretic processes for the production of compounds or non-metals5%

H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy5%

Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution5%

F02BInternal-combustion piston engines4%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests4%

C01BNon-metallic elements3%

PatentTitleYear

5,137,855'Catalysts for selective catalytic reduction denox technology'1992 4,975,256'Process using catalysts for selective catalytic reduction denox technology'1990 4,929,586'Catalysts for selective catalytic reduction DeNOx technology'1990 4,859,433'Process for treating automotive exhaust gases using monolith washcoat having optimum pore structure'1989 4,771,029'Monolith washcoat having optimum pore structure and optimum method of designing the washcoat'1988 4,643,806'Electrocatalytic energy conversion and chemicals production'1987 4,541,995'Process for utilizing doubly promoted catalyst with high geometric surface area'1985 4,541,996'Process for utilizing catalyst with high geometric surface area'1985 4,510,261'Catalyst with high geometric surface area'1985 4,510,262'Doubly promoted catalyst with high geometric surface area'1985 4,510,263'Catalyst with high geometric surface area alumina extrudate and catalyst with high geometric surface area'1985 4,463,065'Fuel cell and method for conducting gas-phase oxidation'1984 4,413,041'Cross-flow monolith reactor'1983 4,396,480'Solid electrolyte sheet'1983 4,346,557'Incineration-cleanable composite diesel exhaust filter and vehicle equipped therewith'1982 4,329,844'Diesel exhaust filter-incinerator'1982 4,222,236'Method for reducing CO and HC emissions'1980 4,199,477'Method for application of porous wash coats to low porosity refractory catalytic monoliths and the resulting support'1980 4,153,579'Platinum, rhodium, and palladium catalyst for automotive emission control'1979 4,152,301'Catalyst for automotive emission control and method for making same'1979 4,128,506'Platinum-rhodium catalyst for automotive emission control'1978 4,119,571'Pellet type oxidation catalyst'1978 4,051,073'Pellet-type oxidation catalyst'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977–1982Patents assigned to GEN MOTORS CORP (9)· patent assignee history

1977–1980Based in St. Clair Shores, MI, US· patent location history

1978–1982Based in Grosse Pointe Woods, MI, US· patent location history

1983–1992Patents assigned to GRACE W R & CO (14)· patent assignee history

1983–1992Based in Rockville, MD, US· patent location history

1984–1987Patents assigned to MASSACHUSETTS INST TECHNOLOGY (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
GRACE W R & CO	14	1983–1992
GEN MOTORS CORP	9	1977–1982
MASSACHUSETTS INST TECHNOLOGY	2	1984–1987

Locations

Location	Patents	Span
Rockville, Maryland, US	14	1983–1992
Grosse Pointe Woods, MI, US	7	1978–1982
St. Clair Shores, MI, US	2	1977–1980