TL

Tracy Lammers

AG Amesbury Group: 3 patents #4 of 11Top 40%
📍 Sioux Falls, SD: #6 of 63 inventorsTop 10%
🗺 South Dakota: #9 of 228 inventorsTop 4%
Overall (2017): #56,002 of 506,227Top 15%
3
Patents 2017

Issued Patents 2017

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
9765550 Passive door lock mechanisms Austin Hemmingsen, Allen Rickenbaugh, Gary E. Tagtow 2017-09-19
9758997 High security lock for door Bruce Hagemeyer, Dan Raap, Gary E. Tagtow, Allen Rickenbaugh 2017-09-12
9605444 Entry door latch actuator system Allen Rickenbaugh, Gary E. Tagtow, Bruce Hagemeyer 2017-03-28