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. 09, 2010
Filed:
Aug. 19, 2008
Robert S. Davidson, Edina, MN (US);
Brant U. Kolb, Afton, MN (US);
Danny B. Anderson, North St. Paul, MN (US);
James A. Higgins, River Falls, WI (US);
Mark J. Hendrickson, Minneapolis, MN (US);
John T. Brady, Lino Lakes, MN (US);
Robert S. Davidson, Edina, MN (US);
Brant U. Kolb, Afton, MN (US);
Danny B. Anderson, North St. Paul, MN (US);
James A. Higgins, River Falls, WI (US);
Mark J. Hendrickson, Minneapolis, MN (US);
John T. Brady, Lino Lakes, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
Zirconia particles, methods of making zirconia particles, composite materials that contain the zirconia particles, methods of making the composite materials, and zirconia sols that contain the zirconia particles are described. The zirconia particles are substantially non-associated and have an average size no greater than 50 nanometers and may contain yttrium. The zirconia particles are prepared by a method that includes two separate hydrothermal treatments.