Inventor · disambiguated record
Otto Graul
Also filed as: GRAUL OTTO
7 granted patents·70 citations·filing 1975–1986
85Inventor score
Top patents by PatentIndex Score
7 records- 0175US3959761ASingle conductor current transformer adapted to be installed into a fully insulated, metal-encapsulated high-voltage switching installationMESSWANDLER BAU GMBH·Filed 1975·Granted May 25, 1976·21 cites·26 claims
- 0267US4156221AAudio-frequency injection transformers for ripple controlMESSWANDLER BAU GMBH·Filed 1977·Granted May 22, 1979·16 cites·34 claims
- 0354US4733213ALayer winding for electrical equipmentMESSWANDLER BAU AG·Filed 1986·Granted Mar 22, 1988·10 cites·4 claims
- 0446US4311979ALayered transformer windingMESSWANDLER BAU GMBH·Filed 1979·Granted Jan 19, 1982·9 cites·9 claims
- 0543US4730777AMethod and apparatus for winding ring cores, ring coils, ring core parts or ring coil partsMESSWANDLER BAU AG·Filed 1985·Granted Mar 15, 1988·8 cites·32 claims
- 0636US4653178AMethod for the manufacture of a layer windingMESSWANDLER BAU AG·Filed 1985·Granted Mar 31, 1987·4 cites·22 claims
- 0728US4697752ACoil winding machineMESSWANDLER BAU AG·Filed 1985·Granted Oct 6, 1987·2 cites·19 claims
Join the waitlist — get patent alerts
Get an alert when Otto Graul 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 →