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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Leotek Electronics › Chen-Ho Wu
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Chen-Ho Wu — 23 Patents

LELeotek Electronics: 21 patents #1 of 21Top 5%
Los Altos Hills, CA: #141 of 812 inventorsTop 20%
California: #24,547 of 386,348 inventorsTop 7%
Overall (All Time): #178,160 of 4,157,543Top 5%
23 Patents All Time
Chen-Ho Wu has been granted 23 US patents while listed as an inventor at Leotek Electronics. The first was granted in 1996 and the most recent in September 2014. Chen-Ho Wu ranks #178,160 of 4,157,543 US inventors in our database (top 4.3%). Patent records list Chen-Ho Wu in Los Altos Hills, CA, US.

Patents per Year

Patents granted per year, 1996 to 2014Bar chart with a peak of 3 patents in 2000.peak 31996: 1 patents19961997: 1 patents1998: 1 patents19981999: 2 patents2000: 3 patents20002001: 1 patents2002: 1 patents20022003: 2 patents2004: 1 patents20042005: 2 patents2007: 2 patents20072008: 3 patents2009: 1 patents20092012: 1 patents2014: 1 patents2014

Issued Patents All Time

Showing 1–23 of 23 patents

Patent #TitleCo-InventorsDate
8833978 Traffic signal light device Chin-Wang Tu, Shih-Chang Wang, Yi-Kai Cheng, Shu-Chun Chang, Bing-Yu Wu 2014-09-16
8111011 LED luminaire with improved life and operation management Chin-Wang Tu, Shih-Chang Wang 2012-02-07
7488086 Retrofitting of fluorescent tubes with light-emitting diode (LED) modules for various signs and lighting applications Chin-Wang Tu 2009-02-10
7461947 LED tube lights with clear bottom base Shih Wang, Chinmau James Hwang 2008-12-09
7434968 Traffic signal lamp assembly and method of replacing same — 2008-10-14
7347706 Light emitting diode (LED) based street light and other lighting applications Chin-Wang Tu, Shih-Chang Wang 2008-03-25
7303309 Method and apparatus for backlit signs with light emitting diode modules Steve Bacilieri 2007-12-04
7172324 Internally illuminated light panel with LED modules having light redirecting devices Chinmau James Hwang, Chin-Wang Tu, Ching-Yuan Chung 2007-02-06
6911915 Compact light emitting diode retrofit lamp and method for traffic signal lights Steve Bacilieri, Chao Wang, Shih-Chang Wang 2005-06-28
6905227 Light emitting diode retrofit module for traffic signal lights — 2005-06-14
6761471 Method and apparatus for retrofitting backlit signs with light emitting diode modules — 2004-07-13
6558021 Light emitting diode modules for illuminated signs Han-Jen Chuang 2003-05-06
6502956 Light emitting diode lamp with individual LED lenses — 2003-01-07
6481130 Light emitting diode linear array with lens stripe for illuminated signs — 2002-11-19
6268801 Method and apparatus for retro-fitting a traffic signal light with a light emitting diode lamp module — 2001-07-31
6111739 LED power supply with temperature compensation Han-Jen Chuang 2000-08-29
D424715 L.E.D lamp — 2000-05-09
6036336 Light emitting diode retrofitting lamps for illuminated traffic signs — 2000-03-14
5949347 Light emitting diode retrofitting lamps for illuminated signs — 1999-09-07
5929465 Non-quadrilateral light emitting devices of compound semiconductor Coeyen Nee, Jeff Chang, C. James Hwang 1999-07-27
D388726 LED traffic signal light — 1998-01-06
D385051 LED light bulb — 1997-10-14
D373387 Light emitting diode open sign — 1996-09-03

Frequent Collaborators

Chin-Wang Tu5 shared
Shih-Chang Wang4 shared
Chinmau James Hwang2 shared
Han-Jen Chuang2 shared
Steve Bacilieri2 shared
Chao Wang1 shared

Nearby-Ranked Inventors

Ravigopal Vennelakanti23
Amit Kaistha23
Stéphane BOUTINON23
Feras Hantash23
Philip Verhaelen23
Florian Paul Christian Binder23
Jean-Luc Bouthemy23
Egbert Lenderink23
Tony J. Branham23