Inventor

O'BRIEN MARK R

US4 patents

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

NORTEL NETWORKS LTD

2 patents

US6169893B1Jan 2, 2001

Wireless communication system that supports multiple standards, multiple protocol revisions, multiple extended services and multiple extended services delivery options and method of operation therefor

NORTEL NETWORKS LTD24 citations91

US7580707B2Aug 25, 2009

Wireless communication system that supports multiple standards, multiple protocol revisions, multiple extended services and multiple extended services delivery options and method of operation therefor

NORTEL NETWORKS LTD2 citations61

CUNO INC

1 patent

US4904605AFeb 27, 1990

Method and apparatus for residential water test kit

CUNO INC58 citations88

ERICSSON AB

1 patent

US7805139B2Sep 28, 2010

Wireless communication system that supports multiple standards, multiple protocol revisions, multiple extended services and multiple extended services delivery options and method of operation therefor

ERICSSON AB4 citations61