Inventor

HARTMANN PHILIP W

US2 patents

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

AMERICAN TELEPHONE & TELEGRAPH

1 patent

US4823338AApr 18, 1989

Virtual local area network

AMERICAN TELEPHONE & TELEGRAPH187 citations92

AT & T BELL LAB

1 patent

US4510596AApr 9, 1985

Time slot assignment facilities

AT & T BELL LAB8 citations66