Inventor

HALLMAN KENNETH B

US4 patents

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

AMERITECH CORP

3 patents

US5657375AAug 12, 1997

Wireless digital personal communications system having voice/data/image two-way calling and intercell hand off provided through distributed logic

AMERITECH CORP229 citations96

US5325419AJun 28, 1994

Wireless digital personal communications system having voice/data/image two-way calling and intercell hand-off

AMERITECH CORP400 citations96

US5497503AMar 5, 1996

Method for assigning frequency channels in a cellular communication system and for identifying critical existing fixed microwave receivers that restrict operation of such a system

AMERITECH CORP68 citations91

SBC PROPERTIES LP

1 patent

US7738886B1Jun 15, 2010

Wireless digital personal communications system having voice/data/image two-way calling and intercel hand-off

SBC PROPERTIES LP34 citations89