Inventor · disambiguated record
Hans-Dieter Piotrowski
Also filed as: PIOTROWSKI HANS-DIETER
4 granted patents·119 citations·filing 1991–1992
80Inventor score
Files withKRUPP MASCHINENTECHNIK4
Top patents by PatentIndex Score
4 records- 0184US5199658ADual-force hydraulic drive for a demolition toolKRUPP MASCHINENTECHNIK·Filed 1992·Granted Apr 6, 1993·42 cites·10 claims
- 0271US5129466AHydraulically operated striking mechanismKRUPP MASCHINENTECHNIK·Filed 1991·Granted Jul 14, 1992·34 cites·11 claims
- 0368US5117921AHydraulically operated hammer drillKRUPP MASCHINENTECHNIK·Filed 1991·Granted Jun 2, 1992·31 cites·9 claims
- 0445US5259464APercussion mechanism for a drill rod unitKRUPP MASCHINENTECHNIK·Filed 1992·Granted Nov 9, 1993·12 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →