Inventor

SCHUMACHER DONALD W

US7 patents

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

MOBAY CORP

3 patents

US4868224ASep 19, 1989

Process for the production of molded products using internal mold release agents

MOBAY CORP69 citations94

US5019317AMay 28, 1991

Process for the production of molded products using internal mold release agents

MOBAY CORP17 citations72

US4917902AApr 17, 1990

Mold for the preparation of reinforced reaction injection molded products

MOBAY CORP10 citations68

STEPAN CO

2 patents

US5627221AMay 6, 1997

Process for production of low density water-blown rigid foams with flow and dimensional stability

STEPAN CO35 citations89

US5420169AMay 30, 1995

Process for production of low density water-blown rigid foams with flow and dimensional stability

STEPAN CO10 citations70

SCHUMACHER DONALD W

1 patent

US5158127AOct 27, 1992

Temporary covering for a window or the like

SCHUMACHER DONALD W71 citations91

MILES INC

1 patent

US5128087AJul 7, 1992

Process for the production of molded products using internal mold release agents

MILES INC13 citations72