Joseph W. Johnson

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Madison, WI, US

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Patents Grantslast 30 patents

Information Patent Grant
Active magnetic regenerator method and apparatus
- Patent number 5,249,424
- Issue date Oct 5, 1993
- Astronautics Corporation of America
- Anthony J. DeGregoria
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Grant
Rotary dipole active magnetic regenerative refrigerator
- Patent number 5,182,914
- Issue date Feb 2, 1993
- Astronautics Corporation of America
- John A. Barclay
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...