Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
WE

Wing K. Eng — 5 Patents

ATAT&T: 3 patents #5,559 of 18,772Top 30%
LLLite-On Electronics (Guangzhou) Limited: 1 patents #237 of 534Top 45%
LTLite-On Technology: 1 patents #549 of 1,203Top 50%
Stanhope, NJ: #17 of 74 inventorsTop 25%
New Jersey: #16,606 of 69,400 inventorsTop 25%
Overall (All Time): #907,971 of 4,157,543Top 25%
5 Patents All Time
Wing K. Eng has been granted 5 US patents while listed as an inventor at AT&T. The first was granted in 1985 and the most recent in June 2017. Wing K. Eng ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Wing K. Eng in Stanhope, NJ, US.

Patents per Year

Patents granted per year, 1985 to 2017Bar chart with a peak of 1 patents in 1985.peak 11985: 1 patents19851986: 1 patents19861988: 1 patents19881992: 1 patents19922017: 1 patents2017

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
9673722 Quasi-resonant half-bridge converter and control method thereof Po-Jung Tseng, WEI-LIEH LAI 2017-06-06
5146396 Single stage power factor corrected converter having isolated output William F. Slack 1992-09-08
4745299 Off-line switcher with battery reserve Robert E. Schroeder 1988-05-17
4623960 Bias power source energized by tertiary winding including hysteresis characteristic for disabling the power switch when a minimum base drive signal can no longer be maintained 1986-11-18
4524412 Peak current controlled converter with additional current threshold control level to limit current tailout during overload conditions 1985-06-18