Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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David Ferguson — 9 Patents

Apple: 9 patents #3,521 of 18,612Top 20%
Sunnyvale, CA: #3,098 of 14,302 inventorsTop 25%
California: #67,547 of 386,348 inventorsTop 20%
Overall (All Time): #535,341 of 4,157,543Top 15%
9 Patents All Time
David Ferguson has been granted 9 US patents while listed as an inventor at Apple. The first was granted in 2009 and the most recent in March 2015. David Ferguson ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list David Ferguson in Sunnyvale, CA, US.

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
8976799 Converged computer I/O system and bridging mechanism for peer-to-peer communication Paul A. Baker, Michael Murphy, Eric W. Anderson, Colin Whitby-Strevens, Keith E. Diefendorff +2 more 2015-03-10 $87,927,000
8719601 Dynamic remaining maximum power allocation to secondary port while staying within optimal efficiency range of power supply Ray L. Chang 2014-05-06 $51,563,000
8473647 Methods and apparatus for decreasing power consumption and bus activity Alberto Vidal 2013-06-25 $71,800,000
8463881 Bridging mechanism for peer-to-peer communication Paul A. Baker, Michael Murphy, Eric W. Anderson, Colin Whitby-Strevens, Keith E. Diefendorff +2 more 2013-06-11 $85,401,000
8266456 Supplying remaining available current to port in excess of bus standard limit Ray L. Chang 2012-09-11 $141,185,000
8013616 Type A USB receptacle with plug detection Alex J. Crumlin, Aaron Leiba 2011-09-06 $87,232,000
7880475 Type A USB receptacle with plug detection Alex J. Crumlin, Aaron Leiba 2011-02-01 $75,080,000
7635280 Type A USB receptacle with plug detection Alex J. Crumlin, Aaron Leiba 2009-12-22 $195,078,000
7634587 I/O descriptor cache for bus mastering I/O controllers Robert L. Bailey, Brian D. Howard, Lesley B. Wynne 2009-12-15 $137,107,000