DU

David G. Unger

AT AT&T: 7 patents #2,615 of 18,772Top 15%
Overall (All Time): #754,083 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
7221936 Method and apparatus for personalization of a public multimedia communications terminal Kermit Hal Purdy 2007-05-22
7039411 Method and apparatus for personalization of a public multimedia communications terminal Kermit Hal Purdy 2006-05-02
6658254 Method and apparatus for personalization of a public multimedia communications terminal Kermit Hal Purdy 2003-12-02
6466910 Method and apparatus to provide enhanced directory assistance information in a communication network Martha Desmond, Karrie Hanson, Bethany Scott Robinson, Michael Chris Varley 2002-10-15
6269337 Method and apparatus to provide enhanced directory assistance information in a communication network Martha Desmond, Karrie Hanson, Bethany Scott Robinson, Michael Chris Varley 2001-07-31
5859897 Telephone calling card and service Daniel Furman 1999-01-12
5353335 Multilingual prepaid telephone system Anthony D. D'Urso, Orlando S. King, Arthur G. Martin, Christine Patricia Peterson 1994-10-04