Inventor
MCCALLUM RALPH W
US3 patents
Patents
3 patentsUS11649537B2May 16, 2023
Permanent magnet alloys for gap magnets
UNIV IOWA STATE RES FOUND INC0 citations47
US9725788B2Aug 8, 2017
Recovering heavy rare earth metals from magnet scrap
UNIV IOWA STATE RES FOUND INC1 citations45
US10323299B2Jun 18, 2019
Recovering rare earth metals from magnet scrap
UNIV IOWA STATE RES FOUND INC0 citations44