Inventor · disambiguated record
Gerhard Rehfeld
Also filed as: REHFELD GERHARD
7 granted patents·140 citations·filing 1975–1992
86Inventor score
Top patents by PatentIndex Score
7 records- 0190US4513089ASuperrefractory dry ramming material based on zirconium oxide for the lining of induction-type crucible furnacesDYNAMIT NOBEL AG·Filed 1983·Granted Apr 23, 1985·27 cites·7 claims
- 0284US4049397AProcess for the preparation of granulated abrasives from fused or sintered refractory inorganic hard substances having a high grain toughnessDYNAMIT NOBEL AG·Filed 1975·Granted Sep 20, 1977·54 cites·10 claims
- 0368US4472173ACeramic-coated corundum abrasive grainDYNAMIT NOBEL AG·Filed 1982·Granted Sep 18, 1984·24 cites·8 claims
- 0456US4177235AMethod of manufacturing electrically fused corundumDYNAMIT NOBEL AG·Filed 1977·Granted Dec 4, 1979·14 cites·13 claims
- 0548US4472961AApparatus for testing abrasive grains in single-grit scratch testsDYNAMIT NOBEL AG·Filed 1982·Granted Sep 25, 1984·12 cites·2 claims
- 0645US5261930APolycrystalline, sintered abrasive granules based on α-Al2 O.sub.HUELS CHEMISCHE WERKE AG·Filed 1992·Granted Nov 16, 1993·8 cites·13 claims
- 0725US4048119AHeating element composition and method for preparing tube fillings of high electrical resistance from fused magnesium oxide for tubular electric heating elementsDYNAMIT NOBEL AG·Filed 1976·Granted Sep 13, 1977·1 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →