Inventor
TUNG CHI F
10 patents
Patents
10 patentsUS4712868ADec 15, 1987
Expanded retroreflective sheet material
MINNESOTA MINING & MFG68 citations96
US4678695AJul 7, 1987
Encapsulated flattop retroreflective sheeting and method for producing the same
MINNESOTA MINING & MFG76 citations96
US4511210AApr 16, 1985
Retroreflective sheeting
MINNESOTA MINING & MFG88 citations96
US4367920AJan 11, 1983
Retroflective sheeting
MINNESOTA MINING & MFG104 citations96
US4192576AMar 11, 1980
Ultra-high-index glass microspheres and products made therefrom
MINNESOTA MINING & MFG82 citations95
US4367919AJan 11, 1983
Durable glass elements
MINNESOTA MINING & MFG98 citations94
US4569857AFeb 11, 1986
Retroreflective sheeting
MINNESOTA MINING & MFG52 citations92
US4377988AMar 29, 1983
Reflective animal collar and material for forming such a collar
MINNESOTA MINING & MFG30 citations92
US4348312ASep 7, 1982
Ultra-high-index glass microspheres and products made therefrom with a fluoropolymer and an ester polymer blend
MINNESOTA MINING & MFG40 citations92
US4248932AFeb 3, 1981
Extended-life pavement-marking sheet material
MINNESOTA MINING & MFG119 citations91