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:
Oct. 21, 1997
Filed:
Oct. 26, 1995
Applicant:
Inventors:
Kenneth Walter Davy, Midhurst, GB;
Roberto Labella, London, GB;
Assignee:
London Hospital Medical College, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; A61K / ; A61K / ; A61C / ;
U.S. Cl.
CPC ...
514547 ; 514549 ; 4332221 ; 4332281 ;
Abstract
A dental composition is disclosed which comprises a resin base comprising at least one brominated or iodinated acrylate or methacrylate monomer having a high refractive index of above 1.6, in admixture with a filler material which has a refractive index of .+-.0.05 of the refractive index of the said resin base. The filler material is radio-opaque and is apatite, hydroxyapatite, a modified hydroxyapatite, wollastonite or a powdered cross-linked polymer.