Mark Chang Trademarks
TEFMAX
Filed: March 13, 2025
Polytetrafluoroethylene (PTFE) thread seal tape
Owned by: Mark Chang
Serial Number: 99083422
PLAYFORBEANS
Filed: May 23, 2025
Mechanical toys; Fidget toys; Spinning fidget toys
Owned by: Mark Chang
Serial Number: 99190372
