Inventor · disambiguated record
Helmut Rettenmaier
Also filed as: RETTENMAIER HELMUT
3 granted patents·62 citations·filing 1990–1991
70Inventor score
Files withSIEMENS NIXDORF INF SYST3
Top patents by PatentIndex Score
3 records- 0174US5200886AStart-up for a switched-mode power supplySIEMENS NIXDORF INF SYST·Filed 1990·Granted Apr 6, 1993·53 cites·2 claims
- 0231US5128852ACurrent-fed push-pull converterSIEMENS NIXDORF INF SYST·Filed 1991·Granted Jul 7, 1992·5 cites·10 claims
- 0326US5151851AMethod and circuit arrangement for generating a sinusoidal line ac voltage from a dc voltageSIEMENS NIXDORF INF SYST·Filed 1991·Granted Sep 29, 1992·4 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →