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

James H. Do — 3 Patents

QUQuantum: 3 patents #139 of 703Top 20%
Milpitas, CA: #1,317 of 3,192 inventorsTop 45%
California: #150,760 of 386,348 inventorsTop 40%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
James H. Do has been granted 3 US patents while listed as an inventor at Quantum. The first was granted in 1993 and the most recent in May 1996. James H. Do ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list James H. Do in Milpitas, CA, US.

Patents per Year

Patents granted per year, 1993 to 1996Bar chart with a peak of 1 patents in 1993.peak 11993: 1 patents19931995: 1 patents19951996: 1 patents1996

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5517631 Miniature disk drive having embedded sector servo with split data fields and automatic on-the-fly data block sequencing Michael Machado, Clifford M. Gold, Bruce R. Peterson, Daniel E. Barnard 1996-05-14 $7,835,000
5465343 Shared memory array for data block and control program storage in disk drive James A. Henson, James P. McGrath, Bruce R. Peterson, Tim R. Glassburn, Michael Raab 1995-11-07 $5,541,000
5255136 High capacity submicro-winchester fixed disk drive Michael Machado, Ronald R. Moon, Thomas A. Tacklind, William G. Moon, Bruce R. Peterson +2 more 1993-10-19 $5,133,000