Michael P. Duff

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Joliet, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Method for installing a suspended ceiling in a storage tank
- Patent number 5,899,039
- Issue date May 4, 1999
- Chicago Bridge & Iron Company
- Michael P. Duff
- E04 - BUILDING
Information Patent Grant
Storage structures with layered thermal finish covering
- Patent number 5,231,811
- Issue date Aug 3, 1993
- Chicago Bridge and Iron Technical Services Company
- John S. Andrepont
- F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
Information Patent Grant
Insulating machine and process
- Patent number 4,333,973
- Issue date Jun 8, 1982
- Chicago Bridge & Iron Company
- Francis V. Bellafiore
- E04 - BUILDING