Back to results
US 4,904,448 AGranted
Patch test materials for the detection of metal allergies
AssigneesG-C Dental Industrial Corp., Haruyuki Kawahara
InventorHaruyuki Kawahara
Life of this patent
Estimating the term…
Abstract
A patch test material for the detection of metal allergies which contains a dental metal, noble or base, with which an allergic reaction aid such as a biological high molecular weight compound, e.g., a protein is present.
Claims5
In a patch test material for the detection of metal allergies, the improvement which comprises the presence, therein, of a dental metal or an alloy thereof and a biological high molecular weight compound as an allergic reaction aid.
Dependencies are inferred from the claim text.