Inventor · disambiguated record
Hak Soo Chang
Also filed as: CHANG HAK S · CHANG HAK SOO
10 granted patents·379 citations·filing 1994–2007
91Inventor score
Files withCHANG MIN TECH CO LTD3CHANGMIN CO LTD2CHANGMIN TECHNOLOGY CO LTD2CHANG HAK SOO1SAMSUNG ELECTRONICS CO LTD1
Top patents by PatentIndex Score
10 records- 0191US6089104AUltrasonic flow meter using transit time across tube chords for determining the flow ratesFiled 1997·Granted Jul 18, 2000·101 cites·5 claims
- 0290US5791187ALevel measurement method using measurements of water column pressure thereforCHANGMIN CO LTD·Filed 1996·Granted Aug 11, 1998·89 cites·4 claims
- 0383US5531124AUltrasonic flow measuring method and apparatus thereofCHANGMIN TECHNOLOGY CO LTD·Filed 1994·Granted Jul 2, 1996·63 cites·5 claims
- 0472US7868953B2Thin film transistor array panel for liquid crystal display and method for manufacturing the sameSAMSUNG ELECTRONICS CO LTD·Filed 2007·Granted Jan 11, 2011·4 cites·9 claims
- 0572US5952583AMethod of measuring a river horizontal average flow velocityCHANG MIN TECH CO LTD·Filed 1998·Granted Sep 14, 1999·37 cites·5 claims
- 0660US5515721ALocal river flow velocity measuring method and apparatus thereforCHANGMIN TECHNOLOGY CO LTD·Filed 1994·Granted May 14, 1996·24 cites·4 claims
- 0753US5842374AMeasuring method of a wide range level and an apparatus thereofCHANGMIN CO LTD·Filed 1995·Granted Dec 1, 1998·33 cites·9 claims
- 0851US6386047B2Ultrasonic flow velocity measuring method using phase difference measurementsCHANG MIN TECH CO LTD·Filed 2001·Granted May 14, 2002·7 cites·2 claims
- 0948US6012338AUltrasonic flow velocity measuring apparatusCHANG MIN TECH CO LTD·Filed 1998·Granted Jan 11, 2000·14 cites·1 claims
- 1047US6470757B2Ultrasonic flow velocity measuring methodCHANG HAK SOO·Filed 2001·Granted Oct 29, 2002·7 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →