The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 7790477 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 07, 2010

Filed:

Feb. 06, 2009
Applicants:

David Tee Liang, Singapore, SG;

Tuti Mariana Lim, Singapore, SG;

Sau Ngen Chen, Singapore, SG;

Inventors:

David Tee Liang, Singapore, SG;

Tuti Mariana Lim, Singapore, SG;

Sau Ngen Chen, Singapore, SG;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/00 (2006.01); A61L 2/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

Contaminants from surfaces of temperature sensitive substrates, such as glass substrates are removed by exposing the surfaces to a hydrogen Surface-mixed diffusion flame for a predetermined duration of time. The predetermined duration of time being insufficient to heat up the surfaces substantially thereby causing damage to the temperature sensitive substrates.


Find Patent Forward Citations

Liang, David. (2010). Apparatus and method for cleaning glass substrates using a cool hydrogen flame (U.S. Patent No. 7790477). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7790477

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