EPO published patent application EP3802848A1 titled 'Formation of arrays of planar intestinal crypts possessing a stem/proliferative cell compartment and differentiated cell zone' for the University of North Carolina at Chapel Hill. The invention covers methods for creating in vitro intestinal crypt arrays with defined cellular compartments, with inventors including Albritton, Wang, and Kim. The patent application is classified under multiple IPC codes including C12Q 1/08, C12N 5/071, and A61L 27/00, covering biological testing methods, cell cultures, and implant materials.

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