Inventor

KRUPINSKI KENNETH C

US4 patents

⚠️ This page may combine multiple inventors who share the name “KRUPINSKI KENNETH C”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

KOPPERS DELAWARE INC

2 patents

US7465387B2Dec 16, 2008

Coal tar and hydrocarbon mixture pitch and the preparation and use thereof

KOPPERS DELAWARE INC5 citations69

US7066997B2Jun 27, 2006

Coal tar and hydrocarbon mixture pitch and the preparation and use thereof

KOPPERS DELAWARE INC3 citations58

UNITED STATES STEEL CORP

2 patents

US4107382AAug 15, 1978

Coated pitch prill

UNITED STATES STEEL CORP8 citations68

US4082823AApr 4, 1978

Process for forming coated pitch prills

UNITED STATES STEEL CORP15 citations68