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

Dar-Der Chang — 3 Patents

STSeagate Technology: 2 patents #2,726 of 4,626Top 60%
WTWestern Digital Technologies: 1 patents #1,787 of 3,180Top 60%
San Jose, CA: #14,517 of 32,062 inventorsTop 50%
California: #149,087 of 386,348 inventorsTop 40%
Overall (All Time): #1,473,783 of 4,157,543Top 40%
3 Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
9898341 Adjustable priority ratios for multiple task queues Hsing Heng Hsieh, Charles Potter 2018-02-20
8179627 Floating guard band for shingle magnetic recording Ken Hong, Byeung Jun Lee, Xin Sheng Guo 2012-05-15
6130798 Hardware PES calculator Richard K. Wong 2000-10-10