Patents/Inventors

Heng-tai Chang

TaichungTW2 patents

3 Patents

US122391872025
Shoe Insole and Processing Method for Shoe Insole
DAH SHENG CHEMICAL INDUSTRY CO., Ltd.
0 cites
US121097742024
Heel Cap Manufacturing Method and Manufacturing Equipment
DAH SHENG CHEMICAL INDUSTRY CO., Ltd.
0 cites
US119506552024
Shoe Insole and Processing Method for Shoe Insole
DAH SHENG CHEMICAL INDUSTRY CO., Ltd.
0 cites