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

David B. Joan

WTWestern Digital Technologies: 2 patents #1,787 of 3,180Top 60%
Trabuco Canyon, CA: #110 of 261 inventorsTop 45%
California: #149,087 of 386,348 inventorsTop 40%
Overall (All Time): #1,612,644 of 4,157,543Top 40%
3 Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6636377 Method of tuning feed-forward control in a disk drive Jie Yu 2003-10-21
6067206 Method and apparatus to compensate for servo wedge rotational offset after a head switch Richard W. Hull, Charles R. Patton, III, Vafa James Rakshani, Charles W. Simmons 2000-05-23
5311376 Information detecting system Michael R. Spaur, Richard W. Hull, Takashi Asami, Marshall Lee, Robert P. Mento +1 more 1994-05-10