ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,521,669, issued on Jan. 13, was assigned to VOLTAGRID LLC (Houston).

"Modular gas processing system" was invented by Nathan Ough (Bellaire, Texas), Leslie Michael Wise (Houston) and Tejinder Singh Gill (Calgary, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "A modular gas processing system built with various gas processing modules and cubes improve transportability and customization. Individual gas processing modules and cubes can be included or removed in multiple combinations for customization because each module has a common interconnection point for connecting to any other gas processing module and cube."

The patent was filed on Nov. 15, 202...