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:
Jun. 03, 2003
Filed:
Oct. 27, 2000
Applicant:
Inventors:
Dong Wu, Woodbury, MN (US);
Brian N. Holmes, St. Paul, MN (US);
Brant U. Kolb, Afton, MN (US);
Sumita B. Mitra, West St. Paul, MN (US);
Wendy L. Thompson, Roseville, MN (US);
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K 7/00 ;
U.S. Cl.
CPC ...
A61K 7/00 ;
Abstract
The invention provides for a material comprising(a) a hardenable resin; and (b) a filler comprising (i) clusters of nano-sized particles, the clusters comprising non-beavy metal oxide particles and heavy metal oxides, and being not fully densified particles and (ii) non-agglomerated nano-sized particles selected from the group consisting of non-heavy metal oxide particles, heavy metal oxide particles, and combinations thereof. The material is suitable for use as dental materials.