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:
May. 12, 1992
Filed:
Feb. 16, 1990
Applicant:
Inventor:
Serge A Scherbatskoy, Fort Worth, TX (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01V / ;
U.S. Cl.
CPC ...
367 83 ;
Abstract
Methods and apparatus for telemetering information between spaced locations in a well drilling system including a borehole filled with drilling fluid, including transmitting at a first location, which may be at the earth's surface, a sequence of pressure pulses, and detecting at a second location, which may be at downhole equipment located in the drill string adjacent the drill bit, the pressure pulses.