Inventor
WANG SPENCER
US56 patents
⚠️ This page may combine multiple inventors who share the name “WANG SPENCER”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
AT & T CORP
42 patentsUS7289489B1Oct 30, 2007
Method for billing IP broadband subscribers
AT & T CORP345 citations99
US7181207B1Feb 20, 2007
Method and apparatus for over-the-air activation of neighborhood cordless-type services
AT & T CORP199 citations99
US7120139B1Oct 10, 2006
Broadband cable telephony network architecture IP ITN network architecture reference model
AT & T CORP360 citations99
US6917610B1Jul 12, 2005
Activity log for improved call efficiency
AT & T CORP210 citations99
US6889321B1May 3, 2005
Protected IP telephony calls using encryption
AT & T CORP253 citations99
US6826173B1Nov 30, 2004
Enhanced subscriber IP alerting
AT & T CORP469 citations99
US6816469B1Nov 9, 2004
IP conference call waiting
AT & T CORP275 citations99
US6775273B1Aug 10, 2004
Simplified IP service control
AT & T CORP166 citations99
US6775267B1Aug 10, 2004
Method for billing IP broadband subscribers
AT & T CORP572 citations99
US6680935B1Jan 20, 2004
Anonymous call rejection
AT & T CORP200 citations99
US6671262B1Dec 30, 2003
Conference server for automatic x-way call port expansion feature
AT & T CORP250 citations99
US6570855B1May 27, 2003
Automatic call manager traffic gate feature
AT & T CORP238 citations99
US6373817B1Apr 16, 2002
Chase me system
AT & T CORP547 citations99
US6252952B1Jun 26, 2001
Personal user network (closed user network) PUN/CUN
AT & T CORP506 citations99
US6243572B1Jun 5, 2001
Method and apparatus for billing a neighborhood cordless service
AT & T CORP125 citations99
US7075918B1Jul 11, 2006
BRG with PBX capabilities
AT & T CORP84 citations98
US6819945B1Nov 16, 2004
Wireless centrex feature activation/deactivation
AT & T CORP94 citations98
US6771953B1Aug 3, 2004
Wireless centrex call transfer
AT & T CORP102 citations98
US6738615B1May 18, 2004
Wireless centrex caller ID
AT & T CORP73 citations98
US6728239B1Apr 27, 2004
Scaleable network server for low cost PBX
AT & T CORP88 citations98
US6690675B1Feb 10, 2004
User programmable fail-proof IP hotline/warm-line
AT & T CORP98 citations98
US6574470B1Jun 3, 2003
Programmable ring-call forwarding in a wireless centrex services system
AT & T CORP149 citations98
US6535730B1Mar 18, 2003
Wireless centrex conference call adding a party
AT & T CORP100 citations98
US6470179B1Oct 22, 2002
Automatic service selection feature for neighborhood residential cordless service
AT & T CORP108 citations98
US6836478B1Dec 28, 2004
Call hold with reminder and information push
AT & T CORP58 citations96
US6778832B1Aug 17, 2004
Neighborhood cordless service call handoff
AT & T CORP55 citations96
US6594488B1Jul 15, 2003
Method and apparatus for over-the-air activation of neighborhood cordless-type services
AT & T CORP63 citations96
US6587683B1Jul 1, 2003
Unconditional call forwarding in a wireless centrex services system
AT & T CORP68 citations96
US6546253B1Apr 8, 2003
Neighborhood cordless service call handoff
AT & T CORP62 citations96
US7257404B1Aug 14, 2007
Neighborhood cordless service call handoff
AT & T CORP24 citations93
US6785560B1Aug 31, 2004
Speed calling in a wireless centrex system
AT & T CORP49 citations93
US6745025B1Jun 1, 2004
Time-of-day call forwarding in a wireless centrex services system
AT & T CORP55 citations93
US6711401B1Mar 23, 2004
Wireless centrex call return
AT & T CORP54 citations93
US6643507B1Nov 4, 2003
Wireless centrex automatic callback
AT & T CORP29 citations93
US6631258B1Oct 7, 2003
Busy call forwarding in a wireless centrex services system
AT & T CORP33 citations93
US6618600B1Sep 9, 2003
Distinctive ringing in a wireless centrex system
AT & T CORP51 citations93
US6606493B1Aug 12, 2003
Wireless centrex conference call deleting a party
AT & T CORP21 citations93
US6606505B1Aug 12, 2003
Wireless centrex call screen
AT & T CORP25 citations93
US6591115B1Jul 8, 2003
Wireless centrex call hold
AT & T CORP21 citations93
US6456839B1Sep 24, 2002
Method and apparatus for billing a neighborhood cordless service
AT & T CORP23 citations93
US6445911B1Sep 3, 2002
Method and apparatus for providing neighborhood cordless services
AT & T CORP36 citations93
US6654603B1Nov 25, 2003
Call waiting in a wireless centrex system
AT & T CORP14 citations84
AT & T IP II LP
6 patentsUS7760711B1Jul 20, 2010
Method for billing IP broadband subscribers
AT & T IP II LP258 citations99
US7590422B1Sep 15, 2009
Neighborhood cordless service call handoff
AT & T IP II LP36 citations96
US7558251B1Jul 7, 2009
Call hold with reminder and information push
AT & T IP II LP46 citations96
US7734908B1Jun 8, 2010
Protected IP telephony calls using encryption
AT & T IP II LP41 citations93
US7805141B1Sep 28, 2010
Neighborhood cordless service call handoff
AT & T IP II LP9 citations84
US7738872B1Jun 15, 2010
Neighborhood cordless service call handoff
AT & T IP II LP8 citations84
(unassigned)
1 patentKUNG FEN-CHUNG
1 patentShowing the top 50 of 56 patents by PatentIndex Score.