Filed: July 14, 1989 RENDERING TECHNICAL ASSISTANCE IN CONNECTION WITH THE LICENSING, DESIGN AND/OR OPERATION OF PLANTS FOR COAL HYDROGENATION… Owned by:HRI, INC. Serial Number:73812517
Filed: September 5, 1991 operation and management services to the petroleum refining, petrochemical and chemical process industries Owned by:HRI, INC. Serial Number:74201032
Filed: September 5, 1991 construction services to the petroleum, petrochemical and chemical process industries Owned by:HRI, INC. Serial Number:74201033
Filed: September 5, 1991 research and development and design services provided to the petroleum process industry in the hydrodealkylation of cresylic… Owned by:HRI, INC. Serial Number:74201034
Filed: January 22, 1993 technical assistance services in connection with the licensing, design and/or operation of plants for coal hydrogenation… Owned by:HRI, INC. Serial Number:74351181