Inventor
ANDERSON RAYMOND H
7 patents
⚠️ This page may combine multiple inventors who share the name “ANDERSON RAYMOND H”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MINNESOTA MINING & MFG
5 patentsUS4108540AAug 22, 1978
Refractor-reflector radiation concentrator
MINNESOTA MINING & MFG48 citations92
US4082433AApr 4, 1978
Louvered echelon lens
MINNESOTA MINING & MFG42 citations92
US3972593AAug 3, 1976
Louvered echelon lens
MINNESOTA MINING & MFG30 citations81
US3979160ASep 7, 1976
Compact overhead projector
MINNESOTA MINING & MFG12 citations73
US4118114AOct 3, 1978
Low-glare overhead projector
MINNESOTA MINING & MFG14 citations65