US Patent Issued to Hewlett-Packard Development on April 8 for "Toner refill cartridge having pump for automatic toner refilling" (South Korean Inventors)

ALEXANDRIA, Va., April 9 -- United States Patent no. 12,271,120, issued on April 8, was assigned to Hewlett-Packard Development Co. LP (Spring, Texas).

"Toner refill cartridge having pump for automatic toner refilling" was invented by Shinhyup Kang (Seongnam Si, South Korea), Yongnam Ahn (Seongnam Si, South Korea), Jinhwa Hong (Seongnam Si, South Korea) and Junhui Kim (Seongnam Si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A toner refill cartridge includes a housing having an opening; a toner storage portion arranged inside the housing and to store a toner; a toner discharge portion at an end of the toner storage portion and to discharge the toner; a pump including a variable volume member c...