Inventor
MCCALLUM R WILLIAM
US12 patents
⚠️ This page may combine multiple inventors who share the name “MCCALLUM R WILLIAM”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
UNIV IOWA STATE RES FOUND INC
9 patentsUS5470401ANov 28, 1995
Method of making bonded or sintered permanent magnets
UNIV IOWA STATE RES FOUND INC40 citations95
US5803992ASep 8, 1998
Carbide/nitride grain refined rare earth-iron-boron permanent magnet and method of making
UNIV IOWA STATE RES FOUND INC31 citations92
US5486240AJan 23, 1996
Carbide/nitride grain refined rare earth-iron-boron permanent magnet and method of making
UNIV IOWA STATE RES FOUND INC36 citations92
US5242508ASep 7, 1993
Method of making permanent magnets
UNIV IOWA STATE RES FOUND INC50 citations92
US5240513AAug 31, 1993
Method of making bonded or sintered permanent magnets
UNIV IOWA STATE RES FOUND INC26 citations92
US5690889ANov 25, 1997
Production method for making rare earth compounds
UNIV IOWA STATE RES FOUND INC27 citations89
US5433978AJul 18, 1995
Method of making quasicrystal alloy powder, protective coatings and articles
UNIV IOWA STATE RES FOUND INC29 citations89
US6352649B1Mar 5, 2002
Material for magnetostrictive sensors and other applications based on ferrite materials
UNIV IOWA STATE RES FOUND INC17 citations81
US6093337AJul 25, 2000
Material for magnetostrictive sensors and other applications based on ferrite materials
UNIV IOWA STATE RES FOUND INC8 citations71