IP Library › Granted Patent US 9,545,374
Granted Patent B1
US 9,545,374 · App. 15/145,410 · Granted Jan 17, 2017

Method, composition for the preparation and cleaning of photo chromic dyes resulting in a product suitable for use on human skin

Inventors: Clifton Sanders (Carrollton, TX); Courtland Imel (Dallas, TX)
Assignee: GENESIS LABORATORIES, INC.
A61K8/96A61Q17/04C09K9/00
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Quick Facts
Patent No.
US 9,545,374
App. No.
15/145,410
Granted
Jan 17, 2017
Kind
B1
Abstract

A method and composition of a photo chromic dye suitable to be applied directly to human skin, and which dye is configured to indicate exposure to UV rays. The composition is configured to change color upon exposure to UVA, UVB and/or UVC rays. The composition can be used with other compositions, such as sunscreen, and be applied to human skin prior to application of the sunscreen, or, formulated with the sunscreen such that when the active ingredients of the sunscreen diminish, the photo chromic dye will change color to generate a visual indicator of this condition.

Claims (2)

1. A composition of manufactured photo chromic dye that is non-toxic to human skin and free of carcinogens, and is suitable for application to human skin,

wherein the composition is made by a process that does not include any known carcinogens.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 6, 2025
From: KRIETZMAN, MARK H.
To: HILLCREST FIRST LLC
Reel/Frame 072483/0568 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 3, 2016
From: SANDERS, CLIFTON; IMEL, COURTLAND
To: SANDERS RESEARCH
Reel/Frame 038447/0625 →