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:
Apr. 17, 1990
Filed:
Dec. 14, 1988
Applicant:
Inventors:
Todd M Hess, Columbus, OH (US);
Peter Gottschalk, Centerville, OH (US);
Assignee:
The Mead Corporation, Dayton, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01T / ;
U.S. Cl.
CPC ...
2504741 ; 430138 ;
Abstract
The present invention provides a radiation dosimeter comprising a support having a layer of microcapsules on the surface thereof. The microcapsules comprise a wall and an internal phase of a solution of a radiochromic dye. Upon exposure to radiation, the radiochromic dye changes color or shade plus density. The radiation dosimeter can be supplied in large as well as small formats.