Gerhard Rehfeld
7Patents
5h-index
8Co-inventors
52Inventor score
Filing activity: Apr 16, 1975 → Apr 24, 1992
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4049397A | Process for the preparation of granulated abrasives from fused or sintered refractory inorganic hard substances having a high grain toughness | Chemistry; Metallurgy | 45 | Expired |
| US4472173A | Ceramic-coated corundum abrasive grain | Chemistry; Metallurgy | 14 | Expired |
| US4177235A | Method of manufacturing electrically fused corundum | Chemistry; Metallurgy | 9 | Expired |
| US5261930A | Polycrystalline, sintered abrasive granules based on .alpha.-Al.sub.2 O.sub . | Chemistry; Metallurgy | 8 | Expired |
| US4513089A | Superrefractory dry ramming material based on zirconium oxide for the lining of induction-type crucible furnaces | Chemistry; Metallurgy | 6 | Expired |
| US4472961A | Apparatus for testing abrasive grains in single-grit scratch tests | Physics | 2 | Expired |
| US4048119A | Heating element composition and method for preparing tube fillings of high electrical resistance from fused magnesium oxide for tubular electric heating elements | Electricity | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.