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| (Source: Samsung Newsroom) |
Samsung Electronics has acquired full ownership of a U.S. bio-application patent previously co-owned with Japan's JSR Corporation, according to a patent assignment recorded on April 4, 2025.
The patent at issue, titled "Compound synthesis method, microarray, acid-transfer composition, and biochip composition" (U.S. Patent No. 8,475,998), was jointly filed by the two companies with the U.S. Patent and Trademark Office (USPTO) in November 2011 and issued in July 2013. The patent is set to expire in 2031.
The invention covers a lithography-based chemical synthesis method applicable to the fabrication of microarrays and biochips—precision analytical platforms where tens of thousands of biological probes such as DNA, RNA, or proteins are densely arranged on a chip surface.
According to the specification, the technique leverages photo-exposure and photoacid generation mechanisms to create precise molecular bonding patterns on a substrate. The process involves an acid-transfer composition containing a polymer, photoacid generator, and sensitizer, enabling selective removal of protecting groups only in exposed regions. This facilitates site-specific molecular attachment, which, when repeated, allows for the high-precision synthesis and arrangement of biomolecules such as DNA, RNA, or peptides.
By PatenTrip
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