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.:
Date of Patent:
Mar. 13, 2012
Filed:
Jul. 31, 2007
Jigui LI, Santa Ana, CA (US);
Ming-ren Tarng, Santa Ana, CA (US);
Jigui Li, Santa Ana, CA (US);
Ming-Ren Tarng, Santa Ana, CA (US);
Behr Process Corporation, Santa Ana, CA (US);
Abstract
An acidic etcher solution for etching a substrate's surface. The acidic etcher solution includes an acid and a pH indicator, the pH indicator having at least one color transition at a pH below 7. The acidic etcher solution having an initial color at an initial pH when applied to the surface to allow determination of the evenness of the coating and the etcher having a second color at a second pH higher than the first pH wherein visual inspection allows for a determination that the etcher is substantially finished reacting.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile