Inventor · disambiguated record
Jong O. Ra
Also filed as: RA JONG O · RA JONG-OH
12 granted patents·170 citations·filing 1990–1996
92Inventor score
Technology areasF16H
Top patents by PatentIndex Score
12 records- 0180US5062823AContinuously variable transmission with controlling brakesRA JONG OH·Filed 1990·Granted Nov 5, 1991·36 cites·16 claims
- 0261US5525116AStepless automatic variable transmissionHAE SUNG ENGINEERING CO LTD·Filed 1995·Granted Jun 11, 1996·19 cites·6 claims
- 0361US5326334AContinuously engaged geared automatic transmission with controlling brakesRA JONG O·Filed 1992·Granted Jul 5, 1994·19 cites·18 claims
- 0456US5800305AReduction gear with coaxial input and output shafts and combining planetary and nonplanetary gearingKANG KOON WOO·Filed 1996·Granted Sep 1, 1998·17 cites·4 claims
- 0556US5330395AContinuously-geared automatic transmission with controlling brakesRA JONG OH·Filed 1992·Granted Jul 19, 1994·17 cites·17 claims
- 0653US5106353AVariable transmissionRA JONG O·Filed 1990·Granted Apr 21, 1992·15 cites·12 claims
- 0747US5484349AStepless automatic variable transmissionHAE SUNG ENGINEERING CO LTD·Filed 1995·Granted Jan 16, 1996·8 cites·9 claims
- 0846US5364320AContinuously-geared automatic transmission with controlling brakesRA JONG OH·Filed 1993·Granted Nov 15, 1994·12 cites·21 claims
- 0943US5415597AStepless automatic variable transmissionRA JONG O·Filed 1993·Granted May 16, 1995·7 cites·21 claims
- 1043US5322488AContinuously geared automatic transmission with controlling brakesRA JONG O·Filed 1992·Granted Jun 21, 1994·10 cites·14 claims
- 1141US5466196AStepless automatic variable transmissionHAE SUNG ENGINEERING CO LTD·Filed 1995·Granted Nov 14, 1995·6 cites·2 claims
- 1235US5484344AStepless automatic variable transmissionHAE SUNG ENGINEERING CO LTD·Filed 1995·Granted Jan 16, 1996·4 cites·18 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →