ALEXANDRIA, Va., July 3 -- United States Patent no. 12,345,137, issued on July 1, was assigned to Baker Hughes Oilfield Operations LLC (Houston).
"Swellable devices based on renewable raw materials and methods of using in wellbores" was invented by Anton Kovalchuk (Houston) and Anil Sadana (Houston).
According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus includes an expandable and porous filtration member having a body constructed of a composite containing a polymer hydrogel, a rubber binder, and a filler. The body has a first volume and expandable to a second volume upon contacting with a fluid comprising water."
The patent was filed on April 15, 2021, under Application No. 17/231,255.
*For further inf...