Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
HC

Hwangsoo Choi

MIMicrosemi: 9 patents #7 of 169Top 5%
LMLinfinity Microelectronics: 2 patents #7 of 15Top 50%
MIMicrochip Technology Incorporated: 1 patents #521 of 958Top 55%
TITexas Instruments: 1 patents #7,357 of 12,488Top 60%
Cupertino, CA: #1,261 of 6,989 inventorsTop 20%
California: #46,935 of 386,348 inventorsTop 15%
Overall (All Time): #373,710 of 4,157,543Top 9%
13 Patents All Time

Issued Patents All Time

Showing 1–13 of 13 patents

Patent #TitleCo-InventorsDate
11221236 Angular position sensor and associated method of use Ganesh Shaga, Kevin Mark Smith, Sudheer Puttapudi 2022-01-11
8941456 EMI suppression with shielded common mode choke Mike Lewis, Shiju Wang 2015-01-27
8598808 Flyback with switching frequency responsive to load and input voltage Shiju Wang, Mike Lewis 2013-12-03
8482218 Dimming input suitable for multiple dimming signal types Shiju Wang, Chien Nguyen, Arkadiy Peker, Migel Jacubovski, Alon Ferentz +1 more 2013-07-09
8363436 Non-dissipative start up circuit Shiju Wang, Chien Nguyen 2013-01-29
7414371 Voltage regulation loop with variable gain control for inverter circuit Chii-Fa Chiou 2008-08-19
7313006 Shoot-through prevention circuit for passive level-shifter 2007-12-25
6946806 Method and apparatus for controlling minimum brightness of a fluorescent lamp 2005-09-20
6870330 Shorted lamp detection in backlight system 2005-03-22
6654268 Method and apparatus for controlling minimum brightness of a fluorescent lamp 2003-11-25
6469922 Method and apparatus for controlling minimum brightness of a flourescent lamp 2002-10-22
6307765 Method and apparatus for controlling minimum brightness of a fluorescent lamp 2001-10-23
5796965 Intelligent power circuit for external data drive Manpo Kwong, Seong-soo Shin 1998-08-18