Inventor
HARTMAN ROBERT L
US19 patents
⚠️ This page may combine multiple inventors who share the name “HARTMAN ROBERT L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
AT & T BELL LAB
4 patentsUS4573255AMar 4, 1986
Purging: a reliability assurance technique for semiconductor lasers utilizing a purging process
AT & T BELL LAB30 citations91
US4539743ASep 10, 1985
Production of semiconductor structures with buried resistive or conductive regions by controlled ion bombardment and heat treatment
AT & T BELL LAB22 citations81
US4523961AJun 18, 1985
Method of improving current confinement in semiconductor lasers by inert ion bombardment
AT & T BELL LAB22 citations81
US4504952AMar 12, 1985
Stripe-guide TJS laser
AT & T BELL LAB9 citations73
BELL TELEPHONE LABOR INC
4 patentsUS4230997AOct 28, 1980
Buried double heterostructure laser device
BELL TELEPHONE LABOR INC34 citations91
US4313125AJan 26, 1982
Light emitting semiconductor devices
BELL TELEPHONE LABOR INC21 citations82
US4227975AOct 14, 1980
Selective plasma etching of dielectric masks in the presence of native oxides of group III-V compound semiconductors
BELL TELEPHONE LABOR INC28 citations81
US4408331AOct 4, 1983
V-Groove semiconductor light emitting devices
BELL TELEPHONE LABOR INC5 citations62