RE

Robert Engelhart

AT AT&T: 3 patents #205 of 1,788Top 15%
📍 Bellevue, WA: #117 of 927 inventorsTop 15%
🗺 Washington: #771 of 8,555 inventorsTop 10%
Overall (2011): #37,587 of 364,097Top 15%
3
Patents 2011

Issued Patents 2011

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
8014764 Interrogate-response communication system with privacy indication 2011-09-06
7974646 Network initiated USSD in mixed networks 2011-07-05
7907937 Prepaid communication services utilizing a prepaid identifier combined with another identifier 2011-03-15