Inventor
BUHRMANN MICHAEL
US21 patents
⚠️ This page may combine multiple inventors who share the name “BUHRMANN MICHAEL”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
AT & T WIRELESS SERVICES INC
9 patentsUS6035193AMar 7, 2000
Telephone system having land-line-supported private base station switchable into cellular network
AT & T WIRELESS SERVICES INC214 citations99
US6630883B1Oct 7, 2003
Method and system for delivering a short-message notification
AT & T WIRELESS SERVICES INC78 citations98
US6373931B1Apr 16, 2002
Method for allowing a called party to allocate call payment responsibility
AT & T WIRELESS SERVICES INC57 citations96
US6256518B1Jul 3, 2001
System for providing power to a wireless system
AT & T WIRELESS SERVICES INC53 citations96
US5933778AAug 3, 1999
Method and apparatus for providing telecommunication services based on a subscriber profile updated by a personal information manager
AT & T WIRELESS SERVICES INC586 citations96
US5903845AMay 11, 1999
Personal information manager for updating a telecommunication subscriber profile
AT & T WIRELESS SERVICES INC532 citations96
US5875187AFeb 23, 1999
TDMA messaging service microcell
AT & T WIRELESS SERVICES INC17 citations92
US5854984ADec 29, 1998
Radio telephone with detachable pager
AT & T WIRELESS SERVICES INC62 citations91
US6405032B1Jun 11, 2002
System and method for retrieving messages from a voice message system
AT & T WIRELESS SERVICES INC14 citations84
CINGULAR WIRELESS II LLC
4 patentsUS7099707B2Aug 29, 2006
Method and system for providing power to a communications device
CINGULAR WIRELESS II LLC36 citations91
US7149553B2Dec 12, 2006
Method and system for providing power to a communications device
CINGULAR WIRELESS II LLC6 citations72
US7012903B1Mar 14, 2006
TDMA messaging service microcell
CINGULAR WIRELESS II LLC3 citations63
US7280503B2Oct 9, 2007
TDMA messaging service microcell
CINGULAR WIRELESS II LLC0 citations52
AT & T WIRELESS SVCS INC
2 patentsVETTD INC
2 patentsUS11048879B2Jun 29, 2021
Systems and methods to determine and utilize semantic relatedness between multiple natural language sources to determine strengths and weaknesses
VETTD INC4 citations67
US11899674B2Feb 13, 2024
Systems and methods to determine and utilize conceptual relatedness between natural language sources
VETTD INC0 citations52