Inventor · disambiguated record
Helmut Pfenning
Also filed as: PFENNING HELMUT
3 granted patents·25 citations·filing 1978–1991
67Inventor score
Top patents by PatentIndex Score
3 records- 0149US5076172AReturning system for rail-bound transport carts without internal driveSCHOTT GLASWERKE·Filed 1991·Granted Dec 31, 1991·17 cites·22 claims
- 0230US4149429AAdjustable gear assemblyJENAER GLASWERK SCHOTT & GEN·Filed 1978·Granted Apr 17, 1979·4 cites·7 claims
- 0328US5327836AReturning system for rail-borne transporting carts without self-driving meansSCHOTT GLASWERKE·Filed 1991·Granted Jul 12, 1994·4 cites·26 claims
Join the waitlist — get patent alerts
Get an alert when Helmut Pfenning files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →