SM

Sheldon Dean McCullough

VC Vtech Communications: 1 patents #27 of 55Top 50%
Overall (All Time): #3,452,953 of 4,157,543Top 85%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6914968 Method and apparatus for telephone call fraud detection and prevention Gordon Ryley 2005-07-05