D.D.I. Ltd.

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British West Indies, US

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Patents Grantslast 30 patents

Information Patent Grant
Noble gas purifier with single purifier vessel and recuperative hea...
- Patent number 5,985,007
- Issue date Nov 16, 1999
- D.D.I. Ltd.
- Giovanni Carrea
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Specialty gas purification system
- Patent number 5,833,738
- Issue date Nov 10, 1998
- D.D.I. Ltd.
- Giovanni Carrea
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL