Inventor
ZIEGENHAIN WILLIAM C
13 patents
⚠️ This page may combine multiple inventors who share the name “ZIEGENHAIN WILLIAM C”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CONTINENTAL OIL CO
6 patentsUS4024231AMay 17, 1977
Producing alumina having a majority of pore diameters of 35-80A
CONTINENTAL OIL CO15 citations73
US3987155AOct 19, 1976
High-porosity, high-surface area, low-bulk density alumina
CONTINENTAL OIL CO17 citations73
US3933685AJan 20, 1976
Method for producing catalyst impregnated alumina extrudates
CONTINENTAL OIL CO7 citations69
US3979504ASep 7, 1976
Calcining method for alumina
CONTINENTAL OIL CO8 citations65
US4133871AJan 9, 1979
Process for preparing alumina
CONTINENTAL OIL CO2 citations60
US3975231AAug 17, 1976
Method for producing concentrated alumina slurries
CONTINENTAL OIL CO4 citations57
CONOCO INC
5 patentsUS4254287AMar 3, 1981
Removal of catalyst from ethoxylates by centrifugation
CONOCO INC23 citations79
US4458492AJul 10, 1984
Method for the recovery of geothermal energy
CONOCO INC17 citations73
US4296057AOct 20, 1981
Method of making alumina fibers
CONOCO INC9 citations73
US4443634AApr 17, 1984
Removal of impurities
CONOCO INC14 citations69
US4267161AMay 12, 1981
Method of making aluminum chlorohydrate
CONOCO INC4 citations62