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. 01, 1994
Filed:
Mar. 19, 1993
Applicant:
Inventor:
On-Kok Chang, San Jose, CA (US);
Assignee:
Valence Technology, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ;
U.S. Cl.
CPC ...
436-2 ; 436-3 ; 436-5 ; 436 74 ; 436 92 ; 436 98 ; 436127 ; 436128 ; 436130 ; 436131 ; 436132 ;
Abstract
Chromogenic solvent detectors are used to detect and map the presence of organic solvent-containing materials on a surface. The detector need only be applied to the surface to be tested. When removed, the dark areas on the detector correspond to those areas of the surface where an organic solvent-containing material was present. This method can be used to test the release properties of a release film.