US Patent Issued to Chevron Phillips Chemical on July 15 for "Coextruded polyethylene pipe and methods of making and using same" (Texas Inventors)

ALEXANDRIA, Va., July 16 -- United States Patent no. 12,359,753, issued on July 15, was assigned to Chevron Phillips Chemical Co. LP (The Woodlands, Texas).

"Coextruded polyethylene pipe and methods of making and using same" was invented by Nikhil Koganti (The Woodlands, Texas) and Heath Casteel (The Woodlands, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A pipe having an inner layer and an outer layer. The inner layer includes a first material having a first hydrostatic design basis (HDB), and the outer layer is coextruded with the inner layer and includes a second material having a second HDB. The second HDB is greater than or equal to the first HDB, and the first HDB and the second HDB are as spec...