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. 26, 2009
Filed:
Apr. 20, 2005
Applicants:
Xinyou LU, Missouri City, TX (US);
Leonard J. Srnka, Bellaire, TX (US);
Inventors:
Xinyou Lu, Missouri City, TX (US);
Leonard J. Srnka, Bellaire, TX (US);
Assignee:
ExxonMobil Upstream Research Company, Houston, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
H04L 23/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Waveforms for controlled source electromagnetic surveying. The waveforms have frequency spectra that include three or more frequencies spaced at substantially equal intervals on a logarithmic frequency scale and spanning a bandwidth of about one decade or more, at least three of which frequencies have approximately equal corresponding amplitudes.