ALEXANDRIA, Va., June 9 -- United States Patent no. RE50,410, issued on April 29, was assigned to CALLGATE Co. LTD. (Seoul, South Korea).

"System and method for providing a screen switching service during call counseling and device applied thereto" was invented by Yong Jin Kim (Seoul, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a system and method for providing a screen switching service during call counseling and a device applied thereto. According to the system for providing a screen switching service during call counseling, after a counselor displays a predetermined counseling material screen on a terminal of a caller in the event that the caller requests a ...