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20 mai 2020 08h00 HE | Source: Proppant Express Investments, LLC

Proppant Express Investments Prevails in U.S. Court of Appeals for Federal Circuit: PropX Did Not Infringe on SandBox Logistics Intellectual Property, Upholding Federal District Court Ruling

DENVER, May 20, 2020 (GLOBE NEWSWIRE) -- Proppant Express Investments, LLC (“PropX” or the “Company”), a leader in providing last-mile sand logistics to the energy industry, today announced that...
16 sept. 2019 07h25 HE | Source: Proppant Express Investments, LLC

Proppant Express Investments Prevails in Patent Trial and Appeal Board Ruling Resulting in Invalidation of SandBox Logistics Patent Claims

DENVER, Sept. 16, 2019 (GLOBE NEWSWIRE) -- Proppant Express Investments, LLC (PropX) today announced that the United States Patent and Trademark Office (USPTO) through the Patent Trial and Appeal...
18 févr. 2019 15h00 HE | Source: Proppant Express Investments, LLC

Proppant Express Investments Prevails Again by Invalidating 24 SandBox Logistics Patent Claims

DENVER, Feb. 18, 2019 (GLOBE NEWSWIRE) -- Proppant Express Investments, LLC (“PropX”) today announced that on February 14, 2019 the U.S. Patent and Trademark Office (“Patent Office”) invalidated 24...
22 janv. 2019 07h30 HE | Source: Proppant Express Investments, LLC

Proppant Express Investments Wins Dismissal of all SandBox Patent Litigation

DENVER, Jan. 22, 2019 (GLOBE NEWSWIRE) -- Proppant Express Investments, LLC (“PropX”) announced today that the U.S. District Court for the Southern District of Texas has dismissed all patent...