Hans T. Clarke

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Hudson, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Pressure relief valve and cryopump utilizing the same
- Patent number 5,137,050
- Issue date Aug 11, 1992
- Helix Technology Corporation
- Hans T. Clarke
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Cryogenic refrigerator having a convection system to cool a hermeti...
- Patent number 4,831,828
- Issue date May 23, 1989
- Helix Technology Corporation
- Lawrence A. Klusmier
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...