Inventor
MARSHALL ROGER S
US17 patents
⚠️ This page may combine multiple inventors who share the name “MARSHALL ROGER S”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TELECOMM SYSTEMS INC
7 patentsUS7929530B2Apr 19, 2011
Ancillary data support in session initiation protocol (SIP) messaging
TELECOMM SYSTEMS INC12 citations84
US8983047B2Mar 17, 2015
Index of suspicion determination for communications request
TELECOMM SYSTEMS INC6 citations82
US9596582B2Mar 14, 2017
Automated location determination to support VoIP E911 using self-surveying techniques for ad hoc wireless networks
TELECOMM SYSTEMS INC2 citations72
US9307078B2Apr 5, 2016
Index of suspicion determination for communications request
TELECOMM SYSTEMS INC4 citations71
US9131357B2Sep 8, 2015
Emergency 911 data messaging
TELECOMM SYSTEMS INC2 citations61
US9538352B2Jan 3, 2017
Ancillary data support in session initiation protocol (SIP) messaging
TELECOMM SYSTEMS INC1 citations52
US9467826B2Oct 11, 2016
Emergency 911 data messaging
TELECOMM SYSTEMS INC0 citations50
MITCHELL JR DONALD L
4 patentsUS8185087B2May 22, 2012
Emergency 911 data messaging
MITCHELL JR DONALD L81 citations95
US8874068B2Oct 28, 2014
Emergency 911 data messaging
MITCHELL JR DONALD L4 citations82
US9313637B2Apr 12, 2016
Wireless emergency caller profile data delivery over a legacy interface
MITCHELL JR DONALD L15 citations81
US10104528B2Oct 16, 2018
Supplemental location information for an emergency services call
MITCHELL JR DONALD L0 citations27