Inventor · disambiguated record
Jo-Yu Chuang
Also filed as: CHUANG JO T · CHUANG JO-YU
4 granted patents·1 pending application·266 citations·filing 1985–2005
82Inventor score
Top patents by PatentIndex Score
5 records- 0189US4799844AElliptical thread designTRW INC·Filed 1988·Granted Jan 24, 1989·70 cites·6 claims
- 0289US4714119AApparatus for hard rock sidewall coring a boreholeSCHLUMBERGER TECHNOLOGY CORP·Filed 1985·Granted Dec 22, 1987·121 cites·12 claims
- 0367US4878550APilot-valve-controlled percussion drilling toolSANDVIK ROCK TOOLS AB·Filed 1988·Granted Nov 7, 1989·41 cites·24 claims
- 0458US4924948AShock absorbing bit retaining ringSANDVIK ROCK TOOLS AB·Filed 1988·Granted May 15, 1990·34 cites·12 claims
- 0543US2007034811A1Energy economizing combinationWU KUO A·Filed 2005·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →