David B. Jeppson has been granted 11 US patents while listed as an inventor at Quantum . The first was granted in 1991 and the most recent in February 2014. David B. Jeppson ranks #435,149 of 4,157,543 US inventors in our database (top 10.5%). Patent records list David B. Jeppson in Sunnyvale, CA, US.
Patents per Year Patents granted per year, 1991 to 2014 Bar chart with a peak of 2 patents in 1991. peak 2 1991: 2 patents 1991 1993: 1 patents 1993 1994: 2 patents 1994 1995: 1 patents 1995 1999: 1 patents 1999 2000: 1 patents 2000 2003: 1 patents 2003 2006: 1 patents 2006 2014: 1 patents 2014
Issued Patents All Time
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Showing 1–11 of 11 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
8655463 Method for avoiding refreshing a database of metadata associated with digital media content William N. Thanos , Hyuk Il Kwon , In-Soo Yoon , Joseph Meza 2014-02-18
$46,748,000
7139149 Adapting compensation for repeatable runout of sectors based on tracked sector adaptation status Yu Sun , Dwight R. Kinney 2006-11-21
6519107 Hard disk drive having self-written servo burst patterns Richard M. Ehrlich , Jong Lin , Kenji Oki 2003-02-11
$27,466,000
6122131 Adaptively-controlled disk drive assembly — 2000-09-19
5982571 Disk drive with closed loop commutator and actuator oscillator Gary W. Calfee 1999-11-09
5416648 Masterless synchronized spindle control for hard disk drives Benjamin Mark Simon Kenneth Miller 1995-05-16
$10,025,000
5325247 Digital multi-rate notch filter for sampled servo digital control system Richard M. Ehrlich 1994-06-28
$7,452,000
5280603 Servo pause for disk drive embedded multi-tasked controller Norman H. Wulferdinger , Bryan J. Mee , William N. Thanos , Joseph Cheng-Tsu Liu 1994-01-18
$8,540,000
5253129 Removable and transportable hard disk subsystem Richard J. Blackborow , Peter Hahn , Claude E. Camp , Donald C. Westwood , Rodica Florea +2 more 1993-10-12
$5,211,000
5065262 Removable and transportable hard disk subsystem Richard J. Blackborow , Peter Hahn , Claude E. Camp , Donald C. Westwood , Rodica Florea +2 more 1991-11-12
$5,633,000
5041924 Removable and transportable hard disk subsystem Richard J. Blackborow , Peter Hahn , Claude E. Camp , Donald C. Westwood , Rodica Florea +2 more 1991-08-20
$5,693,000