Inventor
ROLLENDER DOUGLAS HAROLD
US14 patents
⚠️ This page may combine multiple inventors who share the name “ROLLENDER DOUGLAS HAROLD”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
LUCENT TECHNOLOGIES INC
11 patentsUS6912389B2Jun 28, 2005
Interworking and interoperability of GPRS systems with systems of other technology families
LUCENT TECHNOLOGIES INC129 citations95
US6192242B1Feb 20, 2001
Method for poring a mobile directory number from one wireless service provider to another
LUCENT TECHNOLOGIES INC67 citations95
US6138023AOct 24, 2000
Method for porting a directory number from one wireless service provider to another
LUCENT TECHNOLOGIES INC62 citations92
US6493553B1Dec 10, 2002
Mobile-station adapted for removable user identity modules
LUCENT TECHNOLOGIES INC16 citations83
US7130384B2Oct 31, 2006
End user device supported emergency 9-1-1 function
LUCENT TECHNOLOGIES INC8 citations72
US6944451B2Sep 13, 2005
Routing method for a call to a mobile telephone via global location register
LUCENT TECHNOLOGIES INC11 citations72
US7174149B2Feb 6, 2007
Method and system for indirectly establishing a call
LUCENT TECHNOLOGIES INC8 citations70
US6819921B2Nov 16, 2004
Method of subscriber initiated porting of a wireless number for a mobile station
LUCENT TECHNOLOGIES INC12 citations70
US7184746B2Feb 27, 2007
Method and apparatus for providing network support for a wireless emergency call
LUCENT TECHNOLOGIES INC2 citations61
US7058389B2Jun 6, 2006
Method for processing emergency calls initiated by wireless phones
LUCENT TECHNOLOGIES INC2 citations60
US6882839B2Apr 19, 2005
One-way roaming from ANS-41 to GSM systems
LUCENT TECHNOLOGIES INC4 citations60