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

James Dong — 3 Patents

AXAxt: 1 patents #10 of 25Top 40%
SCSun Chemical: 1 patents #261 of 539Top 50%
Los Angeles, CA: #3,749 of 12,377 inventorsTop 35%
California: #150,760 of 386,348 inventorsTop 40%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
James Dong has been granted 3 US patents while listed as an inventor at Axt. The first was granted in 2002 and the most recent in December 2005. James Dong ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list James Dong in Los Angeles, CA, US.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6972333 Preparation of quinacridonequinones and substituted derivatives of same Edward Sung, George H. Robertson 2005-12-06
6630695 InGaN/AlGaN/GaN multilayer buffer for growth of GaN on sapphire Changhua Chen, Heng Liu 2003-10-07
6495867 InGaN/AlGaN/GaN multilayer buffer for growth of GaN on sapphire Changhua Chen, Heng Liu 2002-12-17 $869,000