Inventor
MURDOCK DOUGLAS R
US22 patents
⚠️ This page may combine multiple inventors who share the name “MURDOCK DOUGLAS R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
LINKUSA CORP
13 patentsUS5867566AFeb 2, 1999
Real-time billing system for a call processing system
LINKUSA CORP107 citations99
US5633919AMay 27, 1997
Real-time billing system for a call processing system
LINKUSA CORP163 citations99
US5546449AAug 13, 1996
System and method for call conferencing
LINKUSA CORP114 citations99
US5483587AJan 9, 1996
System and method for call conferencing
LINKUSA CORP232 citations99
US5903637AMay 11, 1999
System and method for call conferencing
LINKUSA CORP103 citations98
US5873099AFeb 16, 1999
System and method for maintaining redundant databases
LINKUSA CORP95 citations98
US5646982AJul 8, 1997
System and method for message delivery
LINKUSA CORP209 citations98
US5638430AJun 10, 1997
Call validation system
LINKUSA CORP197 citations98
US5586175ADec 17, 1996
Call-processing system and method
LINKUSA CORP144 citations98
US5854833ADec 29, 1998
Processing using DEF records
LINKUSA CORP78 citations97
US5799156AAug 25, 1998
System for determining an alternative application to receive message from first application when the number of times to resend the message to second application is exceeded
LINKUSA CORP88 citations97
US5615251AMar 25, 1997
Real-time reconfiguration
LINKUSA CORP43 citations96
US5619554AApr 8, 1997
Distributed voice system and method
LINKUSA CORP81 citations95
MCI COMMUNICATIONS CORP
3 patentsUS5555290ASep 10, 1996
Long distance telephone switching system with enhanced subscriber services
MCI COMMUNICATIONS CORP116 citations98
US5222120AJun 22, 1993
Long distance telephone switching system with enhanced subscriber services
MCI COMMUNICATIONS CORP272 citations98
US5550899AAug 27, 1996
Long distance telephone switching system with enhanced subscriber services
MCI COMMUNICATIONS CORP29 citations92