P

Inventor

ERWIN DOUG A

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

SIEMENS ROLM COMMUNICATIONS INC

3 patents
USD375095SOct 29, 1996

Telephone

SIEMENS ROLM COMMUNICATIONS INC36 citations91
USD374674SOct 15, 1996

Telephone key expansion unit

SIEMENS ROLM COMMUNICATIONS INC19 citations90
USD387063SDec 2, 1997

Telephone key expansion unit

SIEMENS ROLM COMMUNICATIONS INC15 citations72

SIEMENS PALM COMMUNICATION INC

1 patent
USD374667SOct 15, 1996

Telephone

SIEMENS PALM COMMUNICATION INC30 citations88

SIEMENS BUSINESS COMMUNICATION SYSTEMS INC

1 patent
USD389142SJan 13, 1998

Telephone

SIEMENS BUSINESS COMMUNICATION SYSTEMS INC25 citations86

SIEMENS BUSINESS COMMUNICATION SYSTEMS

1 patent
USD386759SNov 25, 1997

Telephone

SIEMENS BUSINESS COMMUNICATION SYSTEMS13 citations68

SIEMENS INFORMATION AND COMMUNICATION PRODUCTS LLC

1 patent
USD428868SAug 1, 2000

Cordless telephone

SIEMENS INFORMATION AND COMMUNICATION PRODUCTS LLC13 citations67

Siemens Business Communications Systems

1 patent
USD392284SMar 17, 1998

Telephone

Siemens Business Communications Systems7 citations66