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Jackson Walker Scores Rare Win for Corpus Christi Client Over Patent Board

August 3, 2016 Mark Curriden

© 2016 The Texas Lawbook.

By Jeff Bounds

(Aug. 3) – A Corpus Christi company has scored a rare victory for intellectual property owners, persuading an appeals court to set aside an administrative decision that would have killed one of the business’s patents.

The Federal Circuit Court of Appeals has tossed out less than five percent of decisions by the Patent Trial and Appeal Board over the last year, according to data cited by Jackson Walker, whose attorneys won the ruling last week for Magnum Oil Tools International Ltd.

In a precedent-setting decision, the Circuit ruled July 25 that PTAB improperly threw out Magnum’s patent by essentially adopting arguments on behalf of an outside party that had challenged the patent’s validity – even though that party did not make those arguments and failed to present valid reasons to support them.

That outside party, Midland-based McClinton Energy Group, was involved in a broader patent dispute with Magnum. That dispute has since settled, which prompted the U.S. Patent and Trademark Office – which runs PTAB – to defend its judges’ decision at the Circuit.

PTAB judges inappropriately forced Magnum to essentially disprove the central argument PTAB judges accepted for why the patent was supposedly invalid, rather than compelling McClinton to provide legal reasons why the PTAB judges should kill the Magnum patent, the Circuit ruled.

Though the USPTO has broad authority to set up procedures for PTAB to assess the validity of patents the agency has issued, “that authority is not so broad that it allows the (USPTO) to raise, address and decide un-patentability theories never presented by the (challenger) and not supported by the record evidence,” the Circuit’s opinion says.

A USPTO spokesman declined to comment. Jackson Walker attorneys did not respond to a request seeking comment. The Jackson Walker team that represented Magnum in the appeal included Nathaniel St. Clair, II, John Jackson and Chris Rourk

PTAB’s judges tossed Magnum’s patent on plugs used in oil-well drilling because they decided the invention the intellectual property covered would be “obvious” to ordinary workers in that field.

A federal statute, 35 USE 103, says inventions must be “non-obvious” to receive patent protection.

© 2016 The Texas Lawbook. Content of The Texas Lawbook is controlled and protected by specific licensing agreements with our subscribers and under federal copyright laws. Any distribution of this content without the consent of The Texas Lawbook is prohibited.

If you see any inaccuracy in any article in The Texas Lawbook, please contact us. Our goal is content that is 100% true and accurate. Thank you.

Mark Curriden

Mark Curriden is a lawyer/journalist and founder of The Texas Lawbook. In addition, he is a contributing legal correspondent for The Dallas Morning News.

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©2025 The Texas Lawbook.

Content of The Texas Lawbook is controlled and protected by specific licensing agreements with our subscribers and under federal copyright laws. Any distribution of this content without the consent of The Texas Lawbook is prohibited.

If you see any inaccuracy in any article in The Texas Lawbook, please contact us. Our goal is content that is 100% true and accurate. Thank you.

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