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:
Dec. 03, 1991
Filed:
Oct. 04, 1990
Applicant:
Inventors:
Jay A Stein, Framingham, MA (US);
Donald B Plewes, Port Credit, CA;
Russell J Gershman, Middleborough, MA (US);
James G Liebau, Boston, MA (US);
John N Williams, Concord, MA (US);
Assignee:
Hologic, Inc., Waltham, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G21K / ;
U.S. Cl.
CPC ...
378146 ; 378 99 ; 378108 ; 378145 ; 358111 ;
Abstract
An equalization radiography system automatically identifies the lung field in a pre-scan and then carries out an imaging scan in which it equalizes the X-ray exposure but only outside the lung field.