US Patent Issued to NOUL on Sept. 1 for "Hydrogel-based stamping for solution-free blood cell staining" (South Korean Inventor)

ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,723,952, issued on Sept. 1, was assigned to NOUL Co. LTD. (Yongin-si, South Korea).

"Hydrogel-based stamping for solution-free blood cell staining" was invented by Dong Young Lee (Yongin-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of hydrogel stamping for blood sample staining. The blood sample is prepared and placed in contact with a first hydrogel stamp having a first staining dye to facilitate diffusion out of the hydrogel stamp to stain the blood sample by the first staining dye. The blood sample is removed from contact with the first hydrogel stamp and placed in contact with a second hydrogel stamp having a second staini...