Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Leadtrend Technology › Yi-Shan Chu
YC

Yi-Shan Chu — 20 Patents

LTLeadtrend Technology: 17 patents #4 of 93Top 5%
ALAltek: 1 patents #80 of 158Top 55%
AMAmbit Microsystems: 1 patents #8 of 21Top 40%
RTRichtek Technology: 1 patents #265 of 459Top 60%
Baoshan, TW: #148 of 3,661 inventorsTop 5%
Overall (All Time): #214,803 of 4,157,543Top 6%
20 Patents All Time
Yi-Shan Chu has been granted 20 US patents while listed as an inventor at Leadtrend Technology. The first was granted in 2004 and the most recent in September 2017. Yi-Shan Chu ranks #214,803 of 4,157,543 US inventors in our database (top 5.2%). Patent records list Yi-Shan Chu in Baoshan, TW.

Patents per Year

Patents granted per year, 2004 to 2017Bar chart with a peak of 3 patents in 2008.peak 32004: 1 patents20042005: 1 patents2006: 2 patents20062007: 1 patents2008: 3 patents20082009: 2 patents2010: 2 patents20102011: 1 patents2012: 3 patents20122013: 1 patents2014: 1 patents20142016: 1 patents2017: 1 patents2017

Issued Patents All Time

Showing 1–20 of 20 patents

Patent #TitleCo-InventorsDate
9753077 Abnormal connection detection method Yi-Min Shiu, Shih-Jen Yang 2017-09-05
9520791 Power controller with multi-function pin and power supply using the same Chin-Ho Wu, Ren-Yi Chen 2016-12-13
8797013 Adaptive slope-compensation module and method thereof Hsing-Kuo Chao 2014-08-05
8362750 Apparatus for preventing capacitor charger from overcharging and method thereof Ming-Nan Chuang 2013-01-29
8283809 Detecting device for detecting an operating mode of a system and detecting method thereof Hsing-Kuo Chao 2012-10-09
8247981 Integrated circuit and related method for determining operation modes Ren-Yi Chen, Yi-Lun Shen 2012-08-21
8120931 Power converter with control circuit and related control method Yuan-Wen Chang, Chun-Teh Chen, Ren-Yi Chen 2012-02-21
7961481 Pulse width modulation control circuit applied to charge output capacitor Yu-Bin Wang, Hsing-Kuo Chao 2011-06-14
7821750 Voltage converter for preventing switch device from being damaged by voltage spike by utilizing protection circuit Ming-Nan Chuang 2010-10-26
7772782 Light emitting diode (LED) driving device Hsing-Kuo Chao 2010-08-10
7573730 Charging device with boundary mode control Ming-Nan Chuang, Yu-Bin Wang 2009-08-11
7511974 High voltage charging circuit Ming-Nan Chuang, Yuan-Wen Chang 2009-03-31
7446506 Apparatus for preventing capacitor charger from overcharging and method thereof Ming-Nan Chuang 2008-11-04
7378824 Voltage converter capable of avoiding voltage drop occurring in input signal Ming-Nan Chuang, Meng-Chi Chiang 2008-05-27
7330361 Capacitor charging module — 2008-02-12
7193453 Dual loop voltage regulation circuit of power supply chip Da-Chun Wei, Ju-Lin Chia 2007-03-20
7154801 Protection circuit of a memory module and the method thereof Ju-Lin Chia, Da-Chun Wei 2006-12-26
6982882 High voltage charging circuit for charging a high voltage capacitor Ming-Nan Chuang, Yuan-Wen Chang 2006-01-03
6853166 Capacitance charge device with adjustable clamping voltage Yuan-Wen Chang 2005-02-08
6788005 Inverter and lamp ignition system using the same Cheng-Chia Hsu 2004-09-07

Frequent Collaborators

Ming-Nan Chuang7 shared
Hsing-Kuo Chao4 shared
Yuan-Wen Chang4 shared
Ren-Yi Chen3 shared
Da-Chun Wei2 shared
Ju-Lin Chia2 shared

Nearby-Ranked Inventors

Anthony Mertes20
Ed Merjanian20
Arthur J. Higby20
Daniel Rosenberg20
Anthony J. Kuschel20
Mark E. Fauver20
Markus Wintermantel20
Dominik Schnieders20
Christopher P. Roche20