US 4,302,439 AGranted

Method of disclosing dental plaque with D and C Red 33

OwnerStephen L. Selwyninventor

Life of this patent

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Abstract

The dye D and C Red 33 is used as dental plaque disclosing agent, inter alia having the form of a mouthwash, gel or tablet.

Claims8

Dependent claims

A method for disclosing dental plaque which comprises administering a plaque-disclosing amount of the dye D and C Red 33, having the formula ##STR1## to an individual to stain any dental plaque on the teeth of said individual.

Dependencies are inferred from the claim text.

Facts

Application: 06/169,489Filed 16 Jul 1980 · continuation
Priority: GB 14189/767 Apr 1976
Granted: 24 Nov 1981
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

A61K 8/466
Containing sulfur: containing sulfonic acid derivatives; Salts
A61Q 11/00
Preparations for care of the teeth, of the oral cavity or of
G01N 31/22
Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted…
G01N 33/52
Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing: use of…

Family

Serial783,444Parent of this continuation · filed 31 Mar 1977
Serial37,757Parent of this continuation · filed 10 May 1979
US 4,302,439 AThis patent

From the US filing history. Foreign family members aren’t listed.

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