MUMBAI, India, Sept. 7 -- Intellectual Property India has published a patent application (202611083887 A) filed by Chhatrapati Shahu Ji Maharaj University on July 08, 2026, for Self-Validating Disposable Blood Group Determination Card.
Inventors include Tushar Sharma; Dr. Munish Rastogi; Dr. Alka Katiyar; Dheeraj Kumar; Anjali Verma; Yashvi Gupta; and Nandini Tiwari.
The application for the patent was published on September 04, 2026, under issue no. 36/2026.
Abstract: Disclosed is a self-validating disposable blood group determination card comprising a porous hydrophilic sheet substrate and a hydrophobic barrier pattern defining a sample inlet and first, second and third capillary flow paths. The flow paths comprise respective antigen-reaction zones carrying dried Anti-A antiserum, dried Anti-B antiserum and dried Anti-D antiserum for determining A, B, AB and O blood group and Rhesus D blood group from a whole-blood sample. First, second and third indicator regions are respectively disposed downstream of the antigen-reaction zones and comprise dried wetting-responsive visual markers. Blood applied at the sample inlet is passively conveyed through each antigen-reaction zone to its corresponding indicator region. Agglutination observed in the antigen-reaction zones is interpreted only when each indicator region exhibits visible marker activation, thereby indicating sample passage through each diagnostic flow path without requiring an electrically powered reader. Fig. 1 Dated July 6, 2026 / Kumar Tushar Srivastava IN/PA-3973 Agent for the Applicant
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