MUMBAI, India, Sept. 22 -- Intellectual Property India has published a patent application (202647109712 A) filed by Merck Patent Gmbh on September 12, 2026, for Chromatographic Support For Purifying Fc Fusion Protein And Fc Fusion Protein Purification Method Using Same.
Inventors include Suzuki, Kyouta; Ryu, Jung; and Yao, Ying.
The application for the patent was published on September 18, 2026, under issue no. 38/2026.
Abstract: The present invention provides a chromatographic support for purifying an Fc fusion protein and an Fc fusion protein purification method using said chromatographic support. The chromatographic support comprises porous particles to which a ligand is immobilized, wherein: the porous particles are synthetic polymer-based or natural polymer-based porous particles; the ligand is at least one substance selected from the group consisting of protein A, protein G, protein L, and related substances of these; and the average pore diameter of the porous particles to which the ligand is immobilized is 75-120 nm. The Fc fusion protein purification method comprises: (step 1) a step for passing a solution containing an Fc fusion protein through a column that is provided with said chromatographic support and causing the Fc fusion protein to bind with the support; (step 2) a step for washing the support; and (step 3) a step for collecting the Fc fusion protein from the support.
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