Inventor

CHANG CHUN-CHENG

TW13 patents

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

(unassigned)

6 patents

US6572120B2Jun 3, 2003

Wheel assembly for roller skate

US6406037B2Jun 18, 2002

Wheel assembly for a roller skate

US6334621B1Jan 1, 2002

Easy-to-install/detach skate base for a roller skate

US6308964B1Oct 30, 2001

Wheel assembly for a roller skate

US6474661B1Nov 5, 2002

Base structure for roller skates

US6793111B2Sep 21, 2004

Outer assembling mechanism of backpack for carrying detachable skate

PEGATRON CORP

2 patents

US9716780B2Jul 25, 2017

Telephone device

PEGATRON CORP0 citations43

US12288651B2Apr 29, 2025

Key structure

PEGATRON CORP0 citations41

LITE ON IT CORP

2 patents

US7885159B2Feb 8, 2011

Optical disc drive device with anti-scraping mechanism

LITE ON IT CORP0 citations43

US7558176B2Jul 7, 2009

Method for preventing optical disk from being scraped

LITE ON IT CORP0 citations43

CHANG CHUN-CHENG

1 patent

US6523836B1Feb 25, 2003

Wheel assembly for roller skate

CHANG CHUN-CHENG47 citations86

WANG CHEN-WEN

1 patent

US6736411B2May 18, 2004

Locking device for a detachable skate of sport shoe

WANG CHEN-WEN19 citations73

UNIV NAT CHENG KUNG

1 patent

US9620597B2Apr 11, 2017

Graphene optoelectronic detector and method for detecting photonic and electromagnetic energy by using the same

UNIV NAT CHENG KUNG0 citations34