HC

Hak Soo Chang

CC Chang Min Tech Co.: 6 patents #1 of 5Top 20%
UN Unknown: 2 patents #12,644 of 83,584Top 20%
Samsung: 1 patents #49,284 of 75,807Top 70%
📍 Seoul, KR: #5,802 of 39,741 inventorsTop 15%
Overall (All Time): #518,717 of 4,157,543Top 15%
10
Patents All Time

Issued Patents All Time

Showing 1–10 of 10 patents

Patent #TitleCo-InventorsDate
7868953 Thin film transistor array panel for liquid crystal display and method for manufacturing the same Chang-Hun Lee, Nam-Hung Kim, Jae-Jin Lyu 2011-01-11
6470757 Ultrasonic flow velocity measuring method 2002-10-29
6386047 Ultrasonic flow velocity measuring method using phase difference measurements 2002-05-14
6089104 Ultrasonic flow meter using transit time across tube chords for determining the flow rates 2000-07-18
6012338 Ultrasonic flow velocity measuring apparatus 2000-01-11
5952583 Method of measuring a river horizontal average flow velocity 1999-09-14
5842374 Measuring method of a wide range level and an apparatus thereof 1998-12-01
5791187 Level measurement method using measurements of water column pressure therefor 1998-08-11
5531124 Ultrasonic flow measuring method and apparatus thereof Soo D. Kim, Jong S. Paik 1996-07-02
5515721 Local river flow velocity measuring method and apparatus therefor Soo D. Kim, Kyung-Ah Park 1996-05-14