Inventor
REHFELD GERHARD
DE7 patents
⚠️ This page may combine multiple inventors who share the name “REHFELD GERHARD”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DYNAMIT NOBEL AG
6 patentsUS4513089AApr 23, 1985
Superrefractory dry ramming material based on zirconium oxide for the lining of induction-type crucible furnaces
DYNAMIT NOBEL AG27 citations90
US4049397ASep 20, 1977
Process for the preparation of granulated abrasives from fused or sintered refractory inorganic hard substances having a high grain toughness
DYNAMIT NOBEL AG54 citations89
US4472173ASep 18, 1984
Ceramic-coated corundum abrasive grain
DYNAMIT NOBEL AG24 citations78
US4177235ADec 4, 1979
Method of manufacturing electrically fused corundum
DYNAMIT NOBEL AG14 citations70
US4472961ASep 25, 1984
Apparatus for testing abrasive grains in single-grit scratch tests
DYNAMIT NOBEL AG12 citations65
US4048119ASep 13, 1977
Heating element composition and method for preparing tube fillings of high electrical resistance from fused magnesium oxide for tubular electric heating elements
DYNAMIT NOBEL AG1 citations47