Inventor

Yu-Yang Liu

Inventor
Taipei, TW

Overview

8→
Patents
2007–2020
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 8 as inventor

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

F21Yprimary
F21YIndexing scheme associated with subclasses f21k, f21l, f21s and f21v, relating to the form or the kind of the light sources or of the colour of the light emitted17%
F21KNon-electric light sources using luminescence10%
F21SNon-portable lighting devices10%
F21VFunctional features or details of lighting devices or systems thereof10%
LOC267%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications7%
B23QDetails, components, or accessories for machine tools, e.g. arrangements for copying or controlling3%
G01NInvestigating or analysing materials by determining their chemical or physical properties3%
G02BOptical elements, systems or apparatus3%
G05BControl or regulating systems in general3%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2007–2011Patents assigned to LEDTECH ELECTRONICS CORP (7)· patent assignee history
2007–2010Based in Hsin-Tien, TW· patent location history
2008–2011Based in Taipei, TW· patent location history
2020Patents assigned to UNIV NAT CHENG KUNG (1)· patent assignee history
2020Based in Kaohsiung, TW· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
LEDTECH ELECTRONICS CORP72007–2011
UNIV NAT CHENG KUNG12020
Locations
LocationPatentsSpan
Taipei, TW42008–2011
Hsin-Tien, TW32007–2010
Kaohsiung, TW12020