US Patent Issued to PETROLIAM NASIONAL BERHAD (PETRONAS) on March 4 for "Optical cable, optical cable monitoring system, and well monitoring method" (Malaysian, Japanese Inventors)

ALEXANDRIA, Va., March 5 -- United States Patent no. 12,241,365, issued on March 4, was assigned to PETROLIAM NASIONAL BERHAD (PETRONAS) (Kuala Lumpur, Malaysia).

"Optical cable, optical cable monitoring system, and well monitoring method" was invented by Kinzo Kishida (Kobe, Japan), Ahmad Riza Ghazali (Kajang, Malaysia) and Mohamad Faizal bin Abd Rahim (Kajang, Malaysia).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical cable includes: an optical fiber for sensing deformation of hydrocarbon absorbing resin having a property of expanding by absorbing hydrocarbon in oil; a strand provided so as to surround the outer circumference of the optical fiber; and hydrocarbon absorbing resin filling a space bet...