Patents by Inventor Ya-Chu Hsiao

Ya-Chu Hsiao has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

Stepping exercise machine

Patent number: D514635

Type: Grant

Filed: April 13, 2004

Date of Patent: February 7, 2006

Inventor: Ya-Chu Hsiao
Stepping exerciser with rolling wheels

Patent number: D575836

Type: Grant

Filed: June 4, 2007

Date of Patent: August 26, 2008

Inventor: Ya-Chu Hsiao

Stepping exercise machine

Stepping exerciser with rolling wheels