Xeno-Free PEHA Polymers for 3D Printing Patented
Summary
USPTO published patent application US20260109953A1 for xeno-free PEHA polymer hydrogels designed for 3D bioprinting applications, filed April 25, 2023, with inventors Chien-Chi Lin, Nathan H. Dimmitt, and Fang-Yi Lin. The application discloses compositions comprising polymers with at least one BO2H2 repeating unit and methods for encapsulating cells using these hydrogels. This represents prior art for any entities developing similar xeno-free bioink or cell-encapsulation technologies.
“A composition comprising a hydrogel includes a polymer of formula (1), at least one repeating unit of which comprises BO2H2.”
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GovPing monitors USPTO Patent Applications - Biotech (C12N) for new healthcare & life sciences regulatory changes. Every update since tracking began is archived, classified, and available as free RSS or email alerts — 227 changes logged to date.
What changed
USPTO published patent application US20260109953A1 on April 23, 2026, covering xeno-free PEHA polymer hydrogels and methods for their use in 3D printing and cell encapsulation. The application, originally filed April 25, 2023, names Chien-Chi Lin, Nathan H. Dimmitt, and Fang-Yi Lin as inventors.
Entities developing 3D bioprinting technologies, bioinks, or cell-encapsulation products should review this publication for potential overlap with their own IP or freedom-to-operate considerations. The xeno-free designation indicates materials free from animal-derived components, which may be relevant for manufacturers targeting reduced contamination risk in regenerative medicine applications.
Archived snapshot
Apr 23, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
XENO-FREE PEHA POLYMERS FOR 3D PRINTING AND METHODS OF MAKING AND USING THE SAME
Application US20260109953A1 Kind: A1 Apr 23, 2026
Inventors
Chien-Chi Lin, Nathan H. Dimmitt, Fang-Yi Lin
Abstract
A composition comprising a hydrogel includes a polymer of formula (1), at least one repeating unit of which comprises BO2H2. Methods of making such hydrogels and methods of encapsulating cells using such hydrogels are also disclosed herein.
CPC Classifications
C12N 5/0696 C12N 2533/30 C12N 2537/10
Filing Date
2023-04-25
Application No.
19120512
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