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:
Jan. 02, 2018
Filed:
Mar. 14, 2013
The Regents of the University of California, Oakland, CA (US);
Mohamad Sleiman, Berkeley, CA (US);
Thomas Kirchstetter, Oakland, CA (US);
Hugo Destaillats, Scottsdale, AZ (US);
Ronnen Levinson, Berkeley, CA (US);
Paul Berdahl, Walnut Creek, CA (US);
Hashem Akbari, Lafayette, CA (US);
The Regents of the University of California, Oakland, CA (US);
Abstract
This disclosure provides systems, methods, and apparatus related to simulated soiling and weathering of materials. In one aspect, a soiling mixture may include an aqueous suspension of various amounts of salt, soot, dust, and humic acid. In another aspect, a method may include weathering a sample of material in a first exposure of the sample to ultraviolet light, water vapor, and elevated temperatures, depositing a soiling mixture on the sample, and weathering the sample in a second exposure of the sample to ultraviolet light, water vapor, and elevated temperatures.