Inventor · disambiguated record
Tzu-Keng Cheng
Also filed as: CHENG TZU-KENG
11 granted patents·1 pending application·345 citations·filing 1989–2006
92Inventor score
Files withCHENG TZU-KENG11
Top patents by PatentIndex Score
12 records- 0195USD319105SMassagerCHENG TZU-KENG·Filed 1989·Granted Aug 13, 1991·57 cites·1 claims
- 0291USD346449SMassagerCHENG TZU-KENG·Filed 1992·Granted Apr 26, 1994·40 cites·1 claims
- 0391USD342319SMassagerCHENG TZU-KENG·Filed 1991·Granted Dec 14, 1993·41 cites·1 claims
- 0484USD363994SCombined acupuncture and vibrating massagerCHENG TZU-KENG·Filed 1994·Granted Nov 7, 1995·26 cites·1 claims
- 0574USD333912SSuitcaseCHENG TZU-KENG·Filed 1991·Granted Mar 16, 1993·17 cites·1 claims
- 0672US5807287AMassaging apparatus with audio signal controlFiled 1996·Granted Sep 15, 1998·47 cites·6 claims
- 0766USD323301SRotating axis marking unit for golf ballCHENG TZU-KENG·Filed 1989·Granted Jan 21, 1992·11 cites·1 claims
- 0858US5336159AInfrared massagerCHENG TZU KENG·Filed 1992·Granted Aug 9, 1994·86 cites·1 claims
- 0953US2008058687A1Muscle rolling and pinching structureCHENG TZU-KENG·Filed 2006·Application pending·0 cites
- 1039US5140976AMassager with mercury switchCHENG TZU KENG·Filed 1991·Granted Aug 25, 1992·16 cites·1 claims
- 1136USD328343SAir cleanerCHENG TZU-KENG·Filed 1991·Granted Jul 28, 1992·2 cites·1 claims
- 1235USD344614SWater cleaning deviceCHENG TZU-KENG·Filed 1990·Granted Feb 22, 1994·2 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →