Ronald Dale Crumpler

Inventor

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Work History

Patent OwnerApplications FiledYear
SBC KNOWLEDGE VENTURES, L.P.
1
2002
SBC PROPERTIES, L.P.
1
1999
AT&T KNOWLEDGE VENTURES, L.P.
1
1
1
1
1998
1999
2002
2005

Inventor Addresses

AddressDuration
Springfield, ILJan 04, 00 - Nov 10, 05

Technology Profile

Technology # of Patents
H04M: TELEPHONIC COMMUNICATION 4

Patents / Publication

Patents / Publication #Year of Publication / IssuedTitleCitations
2005/0249,3352005Multiple service announcement system2
6,954,5172005Multiple service announcement method0
6,442,2462002Multiple service announcement method0
6,011,8322000Multiple service announcement system and method2