Legal Opinion
Halliburton Company v. Schlumberger Technology Corporation
Court of Appeals for the Federal Circuit
Decided March 15, 1991No. 90-1191PublishedCited by 138 opinions
1Opinion of the Court
RADER, Circuit Judge.
Halliburton Company (Halliburton) sued Schlumberger Technology Corporation (Schlumberger) for infringement of U.S. Patent Nos. 4,388,529 (’529 patent), 4,409,-481 (’481 patent), and 4,424,444 (’444 patent). These patents embrace tools and techniques for neutron logging of oil wells. Specifically, the patents disclose use of high energy neutrons to measure the properties of underground geological formations.
The United States District Court for the Southern District of Texas determined that Halliburton did not disclose important prior art to the Patent and Trademark Office…
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- J.P. Stevens & Co., Inc. v. Lex Tex Ltd., Inc.Court of Appeals for the Federal Circuit · 1984
- Specialty Composites, Plaintiff/cross-Appellant v. Cabot Corp.Court of Appeals for the Federal Circuit · 1988
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3Cited by138 opinions
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