Assignee
GRONBACH WILHELM
2 granted patents·49 citations·filing 1975–1978
Top patents by PatentIndex Score
2 records- 0167US4236272AHinge comprising a compression spring, which is adapted to balance the weight of a hinged leafGRONBACH WILHELM·Filed 1978·Granted Dec 2, 1980·32 cites·5 claims
- 0250US4015309AHinge with compressions spring for counter-balancing weight of leavesGRONBACH WILHELM·Filed 1975·Granted Apr 5, 1977·17 cites·5 claims
Join the waitlist — get patent alerts
Get an alert when GRONBACH WILHELM files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →