Inventor

ULRICH WERNER

US6 patents

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

AT & T BELL LAB

2 patents

US4958341ASep 18, 1990

Integrated packetized voice and data switching system

AT & T BELL LAB259 citations96

US4979206ADec 18, 1990

Directory assistance systems

AT & T BELL LAB277 citations93

AMERICAN TELEPHONE & TELEGRAPH

1 patent

US4872160AOct 3, 1989

Integrated packetized voice and data switching system

AMERICAN TELEPHONE & TELEGRAPH238 citations98

LUCENT TECHNOLOGIES INC

1 patent

US6683871B1Jan 27, 2004

Internet protocol telephony

LUCENT TECHNOLOGIES INC57 citations95

BELL TELEPHONE LABOR INC

1 patent

US4371758AFeb 1, 1983

Defective short holding-time trunk identifying method

BELL TELEPHONE LABOR INC13 citations72

ALCATEL LUCENT USA INC

1 patent

US7991131B2Aug 2, 2011

Control of prepaid balance status notification

ALCATEL LUCENT USA INC1 citations45