The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 19, 2025

Filed:

Feb. 10, 2023
Applicant:

University of Florida Research Foundation, Incorporated, Gainesville, FL (US);

Inventors:

Toshikazu Nishida, Gainesville, FL (US);

Aftab Bhanvadia, Gainesville, FL (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 64/135 (2017.01); B29C 64/40 (2017.01); B29K 101/00 (2006.01); B33Y 10/00 (2015.01); B33Y 40/20 (2020.01); B33Y 50/02 (2015.01); B33Y 70/10 (2020.01); B33Y 80/00 (2015.01);
U.S. Cl.
CPC ...
B29C 64/135 (2017.08); B29C 64/40 (2017.08); B33Y 10/00 (2014.12); B33Y 40/20 (2020.01); B33Y 50/02 (2014.12); B33Y 70/10 (2020.01); B33Y 80/00 (2014.12); B29K 2101/00 (2013.01); B29K 2867/06 (2013.01);
Abstract

Described herein are stereolithographic methods for preparing 3D objects comprising hollow regions and/or multiple materials. In certain embodiments, the methods comprise applying a blocking composition to fill hollow regions in the 3D printed object. In certain embodiments, an absorbent is applied to dispense material into the 3D printed objects and to remove unwanted resin from the hollow regions. Additionally, in certain embodiments, the modular stereolithographic apparatuses described herein contain an invertible, double vat, which enables users easy access to multiple materials throughout the 3D printing process.


Find Patent Forward Citations

Nishida, Toshikazu. (2025). Methods and apparatuses for hollow and multi-material stereolithography (U.S. Patent No. 12390989). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12390989

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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