DP

David Piepenbrink

AT AT&T: 3 patents #213 of 1,339Top 20%
📍 Chicago, IL: #166 of 1,801 inventorsTop 10%
🗺 Illinois: #956 of 9,120 inventorsTop 15%
Overall (2019): #93,294 of 560,194Top 20%
3
Patents 2019

Issued Patents 2019

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
10412133 Public/private communications paths Lee M. Chow, James T. Sofos 2019-09-10
10290042 Content recommendations James T. Sofos, Lee M. Chow 2019-05-14
10235502 Apparatus and method for protecting media content rights Lee M. Chow, James T. Sofos 2019-03-19