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:
Jun. 20, 1995
Filed:
Jan. 12, 1994
Applicant:
Inventors:
Philip W Martin, Whittier, CA (US);
Philip R Martin, Whittier, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01V / ; G01B / ;
U.S. Cl.
CPC ...
324339 ; 324221 ; 324368 ;
Abstract
Well logging method and apparatus which provides a magnetic saturation signal to at least a transmitter and one receiver mounted in a well casing of a well so as to open 'windows' in the casing to allow the impedances of the formations outside the casing to be logged and recorded and also to detect faults in the casing.