HC

Hak Soo Chang

CC Chang Min Tech Co.: 2 patents #1 of 2Top 50%
UN Unknown: 2 patents #88 of 2,778Top 4%
📍 Seoul, KR: #137 of 1,284 inventorsTop 15%
Overall (2002): #63,858 of 266,432Top 25%
2
Patents 2002

Issued Patents 2002

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6470757 Ultrasonic flow velocity measuring method — 2002-10-29
6386047 Ultrasonic flow velocity measuring method using phase difference measurements — 2002-05-14