Charles Tsai has been granted 11 US patents while listed as an inventor at Emcore . The first was granted in 1995 and the most recent in May 2025. Charles Tsai ranks #435,149 of 4,157,543 US inventors in our database (top 10.5%). Patent records list Charles Tsai in Pasadena, CA, US.
Patents per Year Patents granted per year, 1995 to 2025 Bar chart with a peak of 2 patents in 1998. peak 2 1995: 1 patents 1995 1998: 2 patents 1998 1999: 1 patents 1999 2006: 2 patents 2006 2008: 1 patents 2008 2012: 1 patents 2012 2017: 1 patents 2017 2023: 1 patents 2023 2025: 1 patents 2025
Issued Patents All Time
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Showing 1–11 of 11 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
12313878 Optoelectronic device and method of manufacture thereof Aaron John Zilkie , Henri Nykänen , Frank Peters , Guomin Yu 2025-05-27
11669515 Data access system Ting-Fang Chien , Shih-Chiang Tsao 2023-06-06
9631802 Direct-type LED backlight module Jush Lu , Brian Lin , Max Huang , Jessie Chueh , Roger Su 2017-04-25
8101498 Bonded intermediate substrate and method of making same Thomas Pinnington , James M. Zahler , Young Bae Park , Corinne Ladous , Harry A. Atwater +1 more 2012-01-24
7420826 Parallel inverters and controlling method thereof Jing Tan , Yang Li , Yong Cheng , Jian-Ping Ying 2008-09-02
7095766 Mechanical protection for semiconductor edge-emitting ridge waveguide lasers Bernd Witzigmann , Trinh Nguyen 2006-08-22
$4,737,000
7042921 Complex coupled single mode laser with dual active region Bernd Witzigmann 2006-05-09
$7,572,000
5858102 Apparatus of chemical vapor for producing layer variation by planetary susceptor rotation — 1999-01-12
5796506 Submillimeter indirect heterodyne receiver and mixer element — 1998-08-18
5747113 Method of chemical vapor deposition for producing layer variation by planetary susceptor rotation — 1998-05-05
5468299 Device comprising a flat susceptor rotating parallel to a reference surface about a shaft perpendicular to this surface — 1995-11-21