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:
Jul. 07, 2015
Filed:
Oct. 21, 2011
Dennis G. Welygan, Woodbury, MN (US);
Charles J. Studiner, Iv, Cottage Grove, MN (US);
Dwight D. Erickson, Woodbury, MN (US);
Edward J. Woo, Woodbury, MN (US);
Pingfan Wu, Woodbury, MN (US);
Dennis G. Welygan, Woodbury, MN (US);
Charles J. Studiner, IV, Cottage Grove, MN (US);
Dwight D. Erickson, Woodbury, MN (US);
Edward J. Woo, Woodbury, MN (US);
Pingfan Wu, Woodbury, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
A method of making shaped ceramic abrasive particles includes cutting a layer of ceramic precursor material using a laser beam and forming shaped ceramic precursor particles. Further thermal processing provides shaped ceramic abrasive particles. Shaped ceramic abrasive particles producible by the methods and abrasive articles containing them are also disclosed.