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US Patent 7683450 Method for producing smooth, dense optical films

Patent 7683450 was granted and assigned to Corning Incorporated on March, 2010 by the United States Patent and Trademark Office.

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Patent Citations Received
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US Patent 11920234 Yttrium oxide based coating composition
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Patent abstract

The invention is directed to preparing optical elements having a thin, smooth, dense coating or film thereon, and a method for making such coating or film. The coated element has a surface roughness of <1.0 nm rms. The coating materials include hafnium oxide or a mixture of hafnium oxide and another oxide material, for example silicon dioxide. The method includes the use of a reverse mask to deposit the coating or film on a rotating substrate.

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Patent Inventor Names
Gary Allen Hart0
Jue Wang0
Robert LeRoy Maier0
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Patent Citations Received
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US Patent 11661650 Yttrium oxide based coating composition
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Official Website
https://pdfpiw.uspto.gov/.piw?Docid=076834500
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US Patent 07683450 Method for producing smooth, dense optical films US Patent 7683450 Method for producing smooth, dense optical films

Infobox
Patent Number
076834500
Patent Number
76834500
Edits on 23 Sep, 2022
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Infobox
Is a
Patent
Patent
0
Current Assignee
0
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
0
Patent Number
076834500
Date of Patent
March 23, 2010
0
Patent Application Number
122670050
Date Filed
November 7, 2008
0
Official Website
https://pdfpiw.uspto.gov/.piw?Docid=076834500
Patent Primary Examiner
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Quoc D Hoang
0
Edits on 18 Jun, 2022
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Website URL
https://pdfpiw.uspto.gov/.piw?Docid=07683450
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 US Patent 07683450 Method for producing smooth, dense optical films

Infobox
Is a
Patent
Patent
Current assignee
Patent jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent number
07683450
Date of patent
March 23, 2010
Patent application number
12267005
Date Filed
November 7, 2008
Patent primary examiner
‌
Quoc D Hoang

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