AG

Arthur Geringer

SC Security Door Controls: 9 patents #2 of 4Top 50%
📍 Oak Park, CA: #17 of 192 inventorsTop 9%
🗺 California: #15,733 of 386,348 inventorsTop 5%
Overall (All Time): #111,924 of 4,157,543Top 3%
32
Patents All Time

Issued Patents All Time

Showing 26–32 of 32 patents

Patent #TitleCo-InventorsDate
4826223 Electromagnetic door lock device Richard Geringer, David Geringer 1989-05-02
4641867 Door closure assembly Richard Geringer, David Geringer 1987-02-10
4634155 Power actuated door locking and monitoring assembly Richard Geringer, David Geringer 1987-01-06
4623178 Lock assembly Richard Geringer, David Geringer 1986-11-18
4623181 Entry closure assembly Richard Geringer, David Geringer 1986-11-18
4609910 Exit door security system Richard Geringer, David Geringer 1986-09-02
4596411 Door locking and monitoring assembly Richard Geringer, David Geringer 1986-06-24