Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
HC

Hao-Cheng Chang — 2 Patents

YMYield Microelectronics: 1 patents #12 of 17Top 75%
Taipei, TW: #9,019 of 24,966 inventorsTop 40%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Hao-Cheng Chang has been granted 2 US patents while listed as an inventor at Yield Microelectronics. The first was granted in 2008 and the most recent in November 2025. Hao-Cheng Chang ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Hao-Cheng Chang in Taipei, TW.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
12463029 Cleaning method, semiconductor manufacturing method and a system thereof Shu-Shang Sam Wei 2025-11-04
7423903 Single-gate non-volatile memory and operation method thereof Hsin-Chang Lin, Wen-Chien Huang, Ming-Tsang Yang, Cheng-Ying Wu 2008-09-09