Search Again | Story County, Iowa Inventory Patents |
Story Co. Home Page |
Name | Patent Title | Patent Number |
City | Year |
---|---|---|---|---|
R. William MCCALLUM | method of making bonded or sintered permanent magnets | 05240513 | Ames | 1993 |
R. William MCCALLUM | material for magnetostrictive sensors and other applications based on ferrite materials | 06352649 | Ames | 2002 |
R. William MCCALLUM | material for magnetostrictive sensors and other applications based on ferrite materials | 06093337 | Ames | 2000 |
R. William MCCALLUM | carbide/nitride grain refined rare earth-iron-boron permanent magnet and method of making | 05803992 | Ames | 1998 |
R. William MCCALLUM | production method for making rare earth compounds | 05690889 | Ames | 1997 |
R. William MCCALLUM | method of making bonded or sintered permanent magnets | 05470401 | Ames | 1995 |
R. William MCCALLUM | method of making quasicrystal alloy powder, protective coatings and articles | 05433978 | Ames | 1995 |
R. William MCCALLUM | method of making quasicrystal alloy powder, protective coatings and articles | 05433978 | Ames | 1995 |
R. William MCCALLUM | method of making permanent magnets | 05242508 | Ames | 1993 |
Ralph MCCALLUM | Recovering heavy rare earth metals from magnet scrap | 09725788 | Ames | 2017 |
William MCCALLUM | Neodymium-iron-boron magnet with selective surface modification, and method of producing same | 10586640 | Ames | 2020 |
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