ES

Ernst Studhalter

IA Inventio Ag: 2 patents #274 of 953Top 30%
📍 Luzern, CH: #98 of 279 inventorsTop 40%
Overall (All Time): #2,174,904 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7140471 Elevator shaft closure and method of fulfilling fire protection requirements of an elevator shaft closure and of mounting the same — 2006-11-28
6851521 Emergency unlocking device at shaft doors of elevators — 2005-02-08