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:
Sep. 11, 2012
Filed:
Dec. 21, 2009
Applicant:
Gang Qi, Oakdale, MN (US);
Inventor:
Gang Qi, Oakdale, MN (US);
Assignee:
3M Innovative Properties Company, Saint Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03B 9/00 (2006.01); C03B 19/00 (2006.01); C03B 23/00 (2006.01); C03B 37/00 (2006.01); C03C 12/00 (2006.01); C03C 12/02 (2006.01); B29B 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
There is provided a method for making hollow microspheres including heating a feed under conditions sufficient to convert at least a portion of the feed into hollow microspheres, where the heating is conducted under a vacuum. There is also provided hollow microspheres made using this method.