Inventor
BIGHAM WILSON S
US3 patents
Patents
3 patentsUS5380552AJan 10, 1995
Method of improving adhesion between roofing granules and asphalt-based roofing materials
MINNESOTA MINING & MFG118 citations96
US5516573AMay 14, 1996
Roofing materials having a thermoplastic adhesive intergace between coating asphalt and roffing granules
MINNESOTA MINING & MFG100 citations93
US5338368AAug 16, 1994
Method for removing oil or asphalt from inorganic particles having pigment in an outer layer thereof
MINNESOTA MINING & MFG14 citations67