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USPTO Patent Rankings Data through Dec 31, 2025
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Tzu-Chi Cheng — 22 Patents

IOInterlight Optotech: 11 patents #1 of 13Top 8%
EPEpistar: 8 patents #128 of 732Top 20%
HOHuga Optotech: 7 patents #4 of 42Top 10%
KCKaistar Lighting(Xiamen) Co.: 7 patents #2 of 58Top 4%
ICIntematix Technology Center: 1 patents #2 of 3Top 70%
SCSentec E&E Co.: 1 patents #7 of 18Top 40%
Yangmei District, TW: #6 of 144 inventorsTop 5%
Overall (All Time): #189,202 of 4,157,543Top 5%
22 Patents All Time
Tzu-Chi Cheng has been granted 22 US patents while listed as an inventor at Interlight Optotech. The first was granted in 2007 and the most recent in April 2024. Tzu-Chi Cheng ranks #189,202 of 4,157,543 US inventors in our database (top 4.6%). Patent records list Tzu-Chi Cheng in Yangmei District, TW.

Issued Patents All Time

Showing 1–22 of 22 patents

Patent #TitleCo-InventorsDate
11949050 LED assembly Tzer-Perng Chen 2024-04-02
11543081 LED assembly with omnidirectional light field Hong-Zhi Liu, Yi-Ting KUO 2023-01-03
11450791 LED assembly for omnidirectional light applications Tzer-Perng Chen 2022-09-20
RE49031 Flexible LED assemblies and LED light bulbs Hong-Zhi Liu 2022-04-12
10910528 LED assembly Tzer-Perng Chen 2021-02-02
10724721 Light emitting diode device Hwa Su, Hong-Zhi Liu 2020-07-28
10323851 UV tube for killing microorganisms and air conditioning system comprising the tube Jason Huang 2019-06-18
10319886 LED assembly for omnidirectional light appliances Tzer-Perng Chen 2019-06-11
9947839 LED assembly Tzer-Perng Chen 2018-04-17
9874318 LED assembly and LED bulb using the same Hwa Su, Hong-Zhi Liu, Yu Min Li 2018-01-23
9875996 Composite substrate for light emitting device and LED module with the same Jing Zhang 2018-01-23
9755113 Light emitting device Hsi-Yan Chou 2017-09-05
9546762 LED assembly Tzer-Perng Chen 2017-01-17
9534747 Light-emitting diode assembly and fabrication method thereof — 2017-01-03
9502622 LED assembly Tzer-Perng Chen 2016-11-22
9310031 Light emitting diode bulb Hwa Su, Hong-Zhi Liu 2016-04-12
9231171 Flexible LED assemblies and LED light bulbs Hong-Zhi Liu 2016-01-05
9157579 LED assembly with omnidirectional light field Hong-Zhi Liu 2015-10-13
9115875 LED light lamps using stack effect for improving heat dissipation Hwa Su, Hong-Zhi Liu, Yu Min Li 2015-08-25
8450748 Solid state light emitting device Hwa Su, Hsi-Yan Chou, Yu Min Li, Yu-Chou Hu, Chih-Wei Huang 2013-05-28
8450759 Light emitting diode package structure — 2013-05-28
7207691 Light emitting device Kun-Chui Lee, Jung-Pin Cheng 2007-04-24

Nearby-Ranked Inventors

David A. Bierdeman22
Ryan M. Stone22
Kai-Uwe Schmidt22
Satoshi Yoneda22
Rene Frigiere22
Wayne Thomas McHugh22
Michael Bachmann22
Kimberly Rae Saviers22
Qinda Ye22