Inventor

COLEMAN ROBERT R

US3 patents

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

SCHULLER INT INC

1 patent

US5567504AOct 22, 1996

Glass fiber duct board with coated grooves and the method of making the same

SCHULLER INT INC93 citations93

MANVILLE SERVICE CORP

1 patent

US4781510ANov 1, 1988

Insulation board feeder

MANVILLE SERVICE CORP12 citations69

MANVILLE CORP

1 patent

US5115957AMay 26, 1992

Apparatus for reinforcing fibrous duct

MANVILLE CORP4 citations59