Inventor

DUNN THOMAS A

US7 patents

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

CURBELL ELECTRONICS INC

2 patents

USD606947SDec 29, 2009

Nurse call device

CURBELL ELECTRONICS INC29 citations89

USD606041SDec 15, 2009

Pillow speaker

CURBELL ELECTRONICS INC2 citations58

AT & T BELL LAB

2 patents

US5056134AOct 8, 1991

Audible logo for identifying a common carrier

AT & T BELL LAB47 citations89

US4930154AMay 29, 1990

Audible logo for identifying a common carrier

AT & T BELL LAB17 citations70

AT & T CORP

2 patents

US5592539AJan 7, 1997

System for completing air-to-ground telephone calls

AT & T CORP40 citations85

US5822413AOct 13, 1998

Fraud control system for processing calls with an automatic number identification failure

AT & T CORP10 citations64

AMERICAN TELEPHONE & TELEGRAPH

1 patent

US4776004AOct 4, 1988

Communication services method and apparatus

AMERICAN TELEPHONE & TELEGRAPH40 citations88