Inventor

Yu-Chih Cheng

Inventor
Taipei, TW

Overview

29→
Patents
2004–2019
Patent span
Physics
Primary field (CPC G)

Patents· 29 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G06Fprimary
G06FElectric digital data processing29%
LOC1616%
H01HElectric switches13%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h108%
G02CSpectacles5%
B44CProducing decorative effects3%
B44FSpecial designs or pictures3%
B65HHandling thin or filamentary material, e.g. sheets, webs, cables3%
F03GSpring, weight, inertia or like motors3%
H01LSemiconductor devices3%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2004–2012Patents assigned to PRIMAX ELECTRONICS LTD (11)· patent assignee history
2004–2012Based in Taipei, TW· patent location history
2005Patents assigned to AOPEN INC (1)· patent assignee history
2006–2015Patents assigned to CHENG YU-CHIH (15)· patent assignee history
2006–2010Based in Neihu, Taipei, TW· patent location history
2007Patents assigned to CHENG YU CHIH (2)· patent assignee history
2007–2008Based in Tainan, TW· patent location history
2008–2011Patents assigned to INVENTEC CORP (2)· patent assignee history
2012–2015Based in New Taipei, TW· patent location history
2019Based in Taichung, TW· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CHENG YU-CHIHself152006–2015
PRIMAX ELECTRONICS LTD112004–2012
CHENG YU CHIHself22007
INVENTEC CORP22008–2011
AOPEN INC12005
Locations
LocationPatentsSpan
Taipei, TW162004–2012
Tainan, TW72007–2008
New Taipei, TW22012–2015
Neihu, Taipei, TW22006–2010
Taichung, TW12019