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:
Jan. 09, 2001
Filed:
Dec. 30, 1998
Applicant:
Inventor:
John M. Liu, Columbia, MD (US);
Assignee:
The United Sates of America as represented by the Secretary of the Navy, Washington, DC (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 2/204 ;
U.S. Cl.
CPC ...
G01N 2/204 ;
Abstract
Targeted portions of material layered structure is probed by microwave radiation focussed onto the targeted portion by adjustment of antenna position and orientation establishing a single oblique incidence path for reflection of antenna emitted probing radiation. Signal measurements of the radiation along the oblique incidence path is obtained to provide for evaluation and detection of defects in the targeted portion of the structure being probed.