Ching F Chang

Inventor

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Work History

Patent OwnerApplications FiledYear
UCAR CARBON COMPANY INC.
1
1
1
1989
1994
1996

Inventor Addresses

AddressDuration
Strongsville, OHDec 25, 90 - Dec 01, 98

Technology Profile

Technology Matters
C10C: WORKING-UP TAR, PITCH, ASPHALT, BITUMEN; PYROLIGNEOUS ACID 2
C23C: COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL 1

Patents / Publication

Patents / Publication #Year of Publication / IssuedTitleCitations
58432981998Method of production of solids-free coal tar pitch8
55341331996Continuous method for increasing the Q. I. concentration of liquid tar while concurrently producing a Q. I. free tar5
49799981990Process for forming a metal boride coating on a carbonaceous substrate3

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