Inventor · disambiguated record
Helmut Erhard
Also filed as: ERHARD HELMUT · ERHARD HELMUT S
5 granted patents·100 citations·filing 1979–1997
82Inventor score
Top patents by PatentIndex Score
5 records- 0176US5558021APrinting device for printing plastic cardsMETRONIC GERAETEBAU·Filed 1995·Granted Sep 24, 1996·22 cites·11 claims
- 0276US4280418AMethod of combining in-the-mill drying and firing of coal with enhanced heat recoveryHEIDELBERGER ZEMENT AG·Filed 1979·Granted Jul 28, 1981·27 cites·12 claims
- 0366US5806420APrinter for printing compact discs (CD)METRONIC GERAETEBAU·Filed 1995·Granted Sep 15, 1998·15 cites·12 claims
- 0460US5667582AMethod for dry desulfurizing flue gasesHEIDELBERGER ZEMENT AG·Filed 1996·Granted Sep 16, 1997·18 cites·8 claims
- 0556US6146133AProcess for the recycling of residues for the production of portland cement clinkerHEIDELBERGER ZEMENT AG·Filed 1997·Granted Nov 14, 2000·18 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →