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

Leon Chang — 9 Patents

MVMosel Vitelic: 2 patents #107 of 482Top 25%
ATAT&T: 2 patents #7,295 of 18,772Top 40%
Floral Park, NY: #23 of 305 inventorsTop 8%
New York: #16,392 of 115,490 inventorsTop 15%
Overall (All Time): #535,341 of 4,157,543Top 15%
9 Patents All Time
Leon Chang has been granted 9 US patents while listed as an inventor at AT&T. The first was granted in 1992 and the most recent in March 2006. Leon Chang ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list Leon Chang in Floral Park, NY, US.

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
7020144 High capacity Multi-AAL system for VTOA Gateway 2006-03-28 $9,384,000
6551900 Trench gate oxide formation method Yifu Chung, Ping-Wei Lin 2003-04-22
6368882 Method for detecting organic contamination by using hemispherical-grain polysilicon layer Chien-Hung Chen 2002-04-09
6255188 Method of removing a polysilicon buffer using an etching selectivity solution Chien-Hung Chen, Wei-Shang King 2001-07-03
5835779 Message transmission among processing units using interrupt control technique Alan Perry Hewett, David Michael Rouse 1998-11-10 $45,052,000
D342317 Vision tester Myron Orlinsky, George Krubski 1993-12-14
D337338 Display hanger for eyeglasses 1993-07-13
D336484 Display hanger for eyeglasses Lester Morrow 1993-06-15
5141104 Hanger for displaying eyeglasses Lester Morrow 1992-08-25