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:
Dec. 09, 1997
Filed:
Apr. 11, 1994
Applicant:
Inventor:
Monte Allan Douglas, Coppell, TX (US);
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B08B / ; B08B / ;
U.S. Cl.
CPC ...
134-13 ; 134 21 ; 134 31 ;
Abstract
Generally, and in one form of the invention, a method is presented for the photo-stimulated removal of trace metals 16 from a surface 11, comprising the steps of covering the surface 11 with an ambient species 14, exciting the trace metals 16 and/or the ambient species 14 by photo-stimulation sufficiently to allow reaction of the trace metals with the ambient species to form metal products, and removing the ambient species 14 and the metal products from the surface 11. Other methods are also disclosed.