Robert W. Johnson

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Holbrook, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Adsorbing impurities from cryogenic fluid make-up prior to admixing...
- Patent number 4,192,661
- Issue date Mar 11, 1980
- Helix Technology Corporation
- Robert W. Johnson
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Grant
Heat-stationed bayonet connector for cryogenic fluid lines
- Patent number 4,011,732
- Issue date Mar 15, 1977
- Helix Technology Incorporated
- Paul R. Doherty
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Low-loss, fluid helium transfer line suitable for extended lengths
- Patent number 3,945,215
- Issue date Mar 23, 1976
- Cryogenic Technology, Inc.
- Robert W. Johnson
- F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS