Inventor

JOHNSTON ALAN R

US3 patents

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

NASA

1 patent

US4479053AOct 23, 1984

Focal plane array optical proximity sensor

NASA66 citations91

3M INNOVATIVE PROPERTIES CO

1 patent

US6955170B1Oct 18, 2005

Automated respirator fit testing method and system

3M INNOVATIVE PROPERTIES CO48 citations87

CALIFORNIA INST OF TECHN

1 patent

US4884243ANov 28, 1989

Multi-port, optically addressed RAM

CALIFORNIA INST OF TECHN8 citations71