ALEXANDRIA, Va., July 30 -- United States Patent no. 12,370,574, issued on July 29, was assigned to Saudi Arabian Oil Co. (Dhahran, Saudi Arabia).

"Applying corrosion inhibitor within tubulars" was invented by Qais Mohammad Al Hennawi (Hashemite, Jordan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A central tubular defines a central flow passage and spray nozzles along an outer circumference of the central tubular. A first brush pig supports a first end of the central tubular. A second brush pig supports a second end of the tubular. An inflatable balloon is at the second end of the tubular. The inflatable balloon is encircled by the second brush pig. The inflatable balloon is configured to cause a first pr...