ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,441,049, issued on Oct. 14, was assigned to PPG Industries Ohio Inc. (Cleveland).
"3D printing of seal caps" was invented by Bryan W. Wilkinson (Pittsburgh), Michael A. Bubas (Pittsburgh) and Renhe Lin (Stevenson Ranch, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Methods of fabricating seal caps using three-dimensional printing are disclosed. The seal caps are useful for sealing fasteners."
The patent was filed on Feb. 10, 2020, under Application No. 17/429,933.
*For further information, including images, charts and tables, please visit: http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.h...