The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 01, 2026
Filed:
Apr. 02, 2022
Noul Co., Ltd., Yongin-si, KR;
Dong Young Lee, Yongin-si, KR;
NOUL CO., LTD., Yongin-si, KR;
Abstract
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 staining dye to facilitate diffusion out of the hydrogel stamp to stain the blood sample by the second staining dye. The blood sample is removed from contact with the second hydrogel stamp and placed in contact with a third hydrogel stamp having a buffer substance to absorb excessive unbound or weakly-bound staining dye from the blood sample, and subsequently removed from the blood sample. No intermediate washing step is performed after staining by the first or second staining dye.