May 20, 2020 | Press Release
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,...
Sep 16, 2019 | Press Release
Proppant Express Investments Prevails in Patent Trial and Appeal Board Ruling Resulting in Invalidation of SandBox Logistics Patent Claims DENVER, COLORADO, September 16, 2019 Proppant Express Investments, LLC (PropX) today announced that the United States Patent and...