US Patent Issued to 2543500 ALBERTA on Nov. 4 for "Groove geometry for injection molded polypropylene coated field joints" (Norwegian, American Inventors)

ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,459,219, issued on Nov. 4, was assigned to 2543500 ALBERTA LTD. (Calgary, Canada).

"Groove geometry for injection molded polypropylene coated field joints" was invented by Pablo Wiesemann (Spring, Texas), Roberto Del Callejo Vargas (Katy, Texas), Corentin Lazarus (Houston), Magne Skinstad (Fannrem, Norway), Craig Sloan (Houston), Alexandra Sperber (Houston) and Marcos Mockel (Magnolia, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "In an injection molded polypropylene field joint of an oil or gas pipeline, the three-dimensional geometry of the injection molded/cast coating can have an influence on the stress placed on the line coating during coolin...