Inventor
SILVERMAN DAVID P
US14 patents
⚠️ This page may combine multiple inventors who share the name “SILVERMAN DAVID P”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
AT & T CORP
10 patentsUS6252869B1Jun 26, 2001
Data network security system and method
AT & T CORP144 citations97
US6574480B1Jun 3, 2003
Method and apparatus for providing intelligent emergency paging
AT & T CORP67 citations96
US5598457AJan 28, 1997
Technique for providing redundant capability in a personal mobile communication system
AT & T CORP244 citations96
US5563933AOct 8, 1996
Method and apparatus for facilitating the completing of telephone regional toll-free calls from outside the region
AT & T CORP76 citations95
US5625680AApr 29, 1997
Method and apparatus for prioritizing telephone calls
AT & T CORP70 citations94
US5546442AAug 13, 1996
Method and apparatus for use in completing telephone calls
AT & T CORP29 citations92
US6018572AJan 25, 2000
Method and apparatus for prioritizing telephone calls
AT & T CORP16 citations91
US5848140ADec 8, 1998
Multi-network feature application
AT & T CORP23 citations89
US6801780B1Oct 5, 2004
Method and apparatus for providing intelligent emergency paging
AT & T CORP11 citations74
US5950122ASep 7, 1999
Technique for providing feature information in a personal mobile communication system
AT & T CORP8 citations74
LUCENT TECHNOLOGIES INC
4 patentsUS5550905AAug 27, 1996
Method and apparatus for delivering calls and caller identification information to multi-line users
LUCENT TECHNOLOGIES INC77 citations95
US6389113B1May 14, 2002
Dual-alerting paging system and monitoring of return call
LUCENT TECHNOLOGIES INC50 citations92
US6493443B1Dec 10, 2002
Self-generating return call service
LUCENT TECHNOLOGIES INC27 citations89
US6591097B1Jul 8, 2003
Methods and devices for deleting voicemails using a deletion page
LUCENT TECHNOLOGIES INC0 citations51