Patents
.us
Search
Marketplace
Patent My Idea
Patents
/
Inventors
Hang Chang
Taipei
TW
1 patent
2 Patents
US12388404
2025
Feedback Circuit with Adjustable Gain and Radio Frequency Circuit Utilizing the Same
Richwave Technology Corp.
0 cites
US11799437
2023
Radio Frequency Device and Multi-band Matching Circuit
Richwave Technology Corp.
0 cites