US Patent Issued to The Williams Cos. on Nov. 18 for "Hydrocarbon gas emissions control device for pipeline pigging operations" (Pennsylvania, West Virginia Inventors)

ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,472,537, issued on Nov. 18, was assigned to The Williams Cos. Inc. (Tulsa, Okla.).

"Hydrocarbon gas emissions control device for pipeline pigging operations" was invented by Douglas Haag (Washington, Pa.), Dustin Arthurs (Washington, Pa.) and Jamie Schrack (Moundsville, W.va.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Systems and methods for reducing hydrocarbon gas emissions include the use of an emissions control system connected to a transfer station on a gas pipeline. The transfer station can be a pig launcher or a pig receiver. The emissions control system includes a transfer tank connected to the transfer station through a transfer line and a ...