Inventor

CHEN CHIN-CHUAN

TW22 patents

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

CHEN CHIN-CHUAN

POWER TECH STAPLE AND NAIL INC

Combustion driven fastener hand tool

Combustion chamber valve and fuel system for driven fastener hand tool

Support for elastomeric disc valve in combustion driven fastener hand tool

Elastomeric exhaust reed valve for combustion driven fastener hand tool

Fuel system for a combustion driven fastener hand tool

Vacuum piston retention for a combustion driven fastener hand tool

(unassigned)

Combination tool

Supporting bracket for a middle cutter of a shaver

Multipurpose tool

Oil filter structure

CHEN CHIN CHUAN

Bowl

Hand-held personal planetarium

Bowl having arrangement for adjustably fastening a magnet

PACIFIC TELESCOPE CORP

Telescope system having auto-tracking altitude-azimuthal mount and methods for calibrating same

Method for automatically aligning telescope

TZENG FONG IND CORPORATION

Staggered multilayer trimming head applied in an electric haircutter

WONG RAYMOND

Accessory attachment for driven fastener hand tool

INNO TECH CO LTD

Power converter controller having a short-circuit protection threshold voltage no higher than an over-current protection threshold voltage

CHEN CHIN-CHUAN

Oil supply unit

ESUN TOOLS MFG LTD

Oil suction pump

UNIV CHANG GUNG

Mammalian TOR inhibitor

TZENG FONG IND CORP

Hair trimming device