DH

Dave W. Hangsleben

HT Hank Technology: 7 patents #1 of 1Top 100%
📍 Sioux Falls, SD: #67 of 532 inventorsTop 15%
🗺 South Dakota: #225 of 2,308 inventorsTop 10%
Overall (All Time): #684,742 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
12348965 Inmate information communication systems 2025-07-01
10631141 Inmate text communication via Wi-Fi radio 2020-04-21
10236929 Secure electronic communication devices 2019-03-19
10085126 Inmate text communication via Wi-Fi radio 2018-09-25
10082835 Electronic device housings including deformation channels 2018-09-25
9871548 Secure electronic communication devices 2018-01-16
9020115 Inmate communications 2015-04-28