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Purnachandra Pai
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Birmingham, MI, US
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last 30 patents
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Patent Grant
Apparatus for producing gas-air concentrations
Patent number
5,077,016
Issue date
Dec 31, 1991
Michigan Consolidated Gas Company
Richard E. Layng
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Transparency having a second surface multilayer decorative coating
Patent number
4,773,717
Issue date
Sep 27, 1988
Ovonic Synthetic Materials Co.
Purnachandra Pai
G02 - OPTICS
Information
Patent Grant
Plasma chemical vapor deposition SiO.sub.2-x coated articles and pl...
Patent number
4,759,993
Issue date
Jul 26, 1988
Ovonic Synthetic Materials Co., Inc.
Purnachandra Pai
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Multilayer decorative coating
Patent number
4,702,955
Issue date
Oct 27, 1987
Ovonic Synthetic Materials Company, Inc.
David Allred
G02 - OPTICS