Inventor
APPELDORN ROGER H
US17 patents
Patents
17 patentsUS4938563AJul 3, 1990
High efficiency cube corner retroflective material
MINNESOTA MINING & MFG232 citations99
US4875259AOct 24, 1989
Intermeshable article
MINNESOTA MINING & MFG162 citations99
US4775219AOct 4, 1988
Cube-corner retroreflective articles having tailored divergence profiles
MINNESOTA MINING & MFG450 citations99
US5432876AJul 11, 1995
Illumination devices and optical fibres for use therein
MINNESOTA MINING & MFG472 citations98
US5659643AAug 19, 1997
Notched fiber array illumination device
MINNESOTA MINING & MFG93 citations96
US5631994AMay 20, 1997
Structured surface light extraction overlay and illumination system
MINNESOTA MINING & MFG76 citations96
US5575550ANov 19, 1996
Pole light having a programmable footprint
MINNESOTA MINING & MFG53 citations96
US5360270ANov 1, 1994
Reusable security enclosure
MINNESOTA MINING & MFG60 citations96
US4848319AJul 18, 1989
Refracting solar energy concentrator and thin flexible Fresnel lens
MINNESOTA MINING & MFG123 citations96
US5113555AMay 19, 1992
Container with intermeshable closure members
MINNESOTA MINING & MFG70 citations95
US5088164AFeb 18, 1992
Container with intermeshable closure members
MINNESOTA MINING & MFG76 citations95
US4800868AJan 31, 1989
Tilted panel linear echelon solar collector
MINNESOTA MINING & MFG38 citations92
US4082433AApr 4, 1978
Louvered echelon lens
MINNESOTA MINING & MFG42 citations92
US5261184ANov 16, 1993
Greenhouse construction and improved method of growing plants
MINNESOTA MINING & MFG22 citations91
US4146883AMar 27, 1979
Display
MINNESOTA MINING & MFG37 citations89
US3972593AAug 3, 1976
Louvered echelon lens
MINNESOTA MINING & MFG30 citations81
US4237493ADec 2, 1980
Television support and picture projector
MINNESOTA MINING & MFG5 citations63