Inventor · disambiguated record
Heinz-Dieter Nagel
Also filed as: NAGEL HEINZ-DIETER
4 granted patents·232 citations·filing 1993–1999
80Inventor score
Technology areasB66B
Files withINVENTIO AG4
Top patents by PatentIndex Score
4 records- 0195US5648644ABrake regulating apparatus for an elevator carINVENTIO AG·Filed 1994·Granted Jul 15, 1997·172 cites·20 claims
- 0281US6070700AOperating system for elevator doorsINVENTIO AG·Filed 1999·Granted Jun 6, 2000·39 cites·10 claims
- 0339US5373121AMethod and apparatus for saving electrical energy in an hydraulic elevator driveINVENTIO AG·Filed 1993·Granted Dec 13, 1994·10 cites·11 claims
- 0433US5443140AMethod and apparatus for reducing the power required by an hydraulic elevator driveINVENTIO AG·Filed 1993·Granted Aug 22, 1995·11 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →