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MCDOWELL-WELLMAN COMPANY
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CLEVELAND, OH, US
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Patents Grants
last 30 patents
Information
Patent Grant
Process for gasifying pelletized carbonaceous fuels
Patent number
4,220,454
Issue date
Sep 2, 1980
McDowell-Wellman Company
Thomas E. Ban
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Poke hole closure apparatus
Patent number
4,211,536
Issue date
Jul 8, 1980
McDowell-Wellman Company
Wallace Hamilton
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Recovery of oil and gas from oil shale
Patent number
4,193,862
Issue date
Mar 18, 1980
McDowell-Wellman Company
Thomas E. Ban
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
73211603 - ISP
Serial number
73211603
Registration number
1137224
Filing date
Apr 16, 1979
MCDOWELL-WELLMAN COMPANY
7 - Machines and machine tools