Inventor

Yi-Kai Cheng

Inventor

Miao-Li County, TW

Overview

22→

Patents

2006–2020

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 22 as inventor

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

F21Vprimary

F21VFunctional features or details of lighting devices or systems thereof20%

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 emitted20%

F21WIndexing scheme associated with subclasses f21k, f21l, f21s and f21v, relating to uses or applications of lighting devices or systems19%

G02BOptical elements, systems or apparatus15%

LOC1611%

F21KNon-electric light sources using luminescence4%

G09FDisplaying4%

G01NInvestigating or analysing materials by determining their chemical or physical properties2%

G01TMeasurement of nuclear or x-radiation2%

G03BApparatus or arrangements for taking photographs or for projecting or viewing them2%

PatentTitleYear

10,656,292Water pumping and injecting multi-layered concentric sphere neutron spectrometer2020 10,008,137Illuminated sign with compartmented portion2018 9,182,340'Optical measuring apparatus and optical measuring method'2015 8,833,978'Traffic signal light device'2014 8,511,865'LED luminaire light redirection shield'2013 8,262,272'Optical lens and illuminating device incorporating the same'2012 8,047,699'Optical lens and illuminating device incorporating the same'2011 8,047,676'Illuminating device'2011 8,016,459'Illuminating device incorporating optical lens'2011 7,988,328'Optical lens and illuminating device incorporating the same'2011 7,988,334'Illuminating device with adjustable illumination range'2011 7,950,825'Optical lens and illuminating device incorporating the same'2011 7,794,117'Lamp cover and illumination lamp having same'2010 7,753,564'Lampshade and illumination lamp having the same'2010 D0611077'Optical lens'2010 D0610599'Optical lens'2010 D0609260'Optical lens'2010 D0608806'Optical lens'2010 D0608808'Optical lens'2010 D0608807'Optical lens'2010 7,611,250'Projector'2009 7,123,811'Circular display device with a projective light source'2006

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2006–2009Patents assigned to CHUNGHWA PICTURE TUBES LTD (2)· patent assignee history

2006–2009Based in Tainan, TW· patent location history

2010–2012Patents assigned to FOXSEMICON INTEGRATED TECH INC (15)· patent assignee history

2010–2012Based in Miao-Li County, TW· patent location history

2012–2013Patents assigned to CHENG YI-KAI (2)· patent assignee history

2013–2014Patents assigned to LEOTEK ELECTRONICS CORP (2)· patent assignee history

2013–2018Based in Taipei, TW· patent location history

2015–2018Patents assigned to LITE ON TECHNOLOGY CORP (2)· patent assignee history

2015Based in Hsinchu, TW· patent location history

2020Based in Sichuan, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
FOXSEMICON INTEGRATED TECH INC	15	2010–2012
CHENG YI-KAIself	2	2012–2013
CHUNGHWA PICTURE TUBES LTD	2	2006–2009
LEOTEK ELECTRONICS CORP	2	2013–2014
LITE ON TECHNOLOGY CORP	2	2015–2018

Locations

Location	Patents	Span
Miao-Li County, TW	15	2010–2012
Taipei, TW	2	2013–2018
Tainan, TW	2	2006–2009
Sichuan, CN	1	2020
Hsinchu, TW	1	2015