P

Inventor

TSENG CHING-HUAN

TW12 patents
⚠️ This page may combine multiple inventors who share the name “TSENG CHING-HUAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

IND TECH RES INST

6 patents
US6987341B2Jan 17, 2006

Motor of rotor with built-in permanent magnet

IND TECH RES INST20 citations92
US6387008B1May 14, 2002

Speed-changing control mechanism of multistage speed-changing wheel hub

IND TECH RES INST21 citations92
US5816966AOct 6, 1998

Bicycle front deraileur with a smooth gear switching mechanism

IND TECH RES INST57 citations91
US5876159AMar 2, 1999

Sprocket trimming method for the multi-stage sprocket assembly

IND TECH RES INST42 citations89
US6142899ANov 7, 2000

Electro-motive gear-shift control apparatus for bicycles

IND TECH RES INST17 citations79
US5409422AApr 25, 1995

Two sprocket tooth trimming methods and the structure thereof for the multi-stage sprocket assembly in a bicycle

IND TECH RES INST12 citations70

(unassigned)

2 patents
US6471610B1Oct 29, 2002

Front derailleur for a bicycle

31 citations90
US5662569ASep 2, 1997

Stepping apparatus capable of large angle oscillation

0 citations41

NAT SCIENCE COUNCIL REPUBLIC CHINA

1 patent
US5704859AJan 6, 1998

Type of the compact freewheel body for bicycles

NAT SCIENCE COUNCIL REPUBLIC CHINA38 citations91

METAL IND RES & DEV CT

1 patent
US6672563B2Jan 6, 2004

Ball valve having a magnetic seat sealing device

METAL IND RES & DEV CT9 citations73

NAT SCIENCE COUNCIL

1 patent
US5960668AOct 5, 1999

Indexing mechanism using pairs of radially disposed rollers engaged between adjacent cam ribs

NAT SCIENCE COUNCIL11 citations73

TSENG CHING-HUAN

1 patent
US6708493B2Mar 23, 2004

Variable ratio of force-enlargement master cylinder of a braking system

TSENG CHING-HUAN0 citations32