John W. Elsing has been granted 22 US patents while listed as an inventor at Seagate Technology . The first was granted in 1983 and the most recent in December 2008. John W. Elsing ranks #189,202 of 4,157,543 US inventors in our database (top 4.6%). Patent records list John W. Elsing in Minneapolis, MN, US.
Patents per Year Patents granted per year, 1983 to 2008 Bar chart with a peak of 5 patents in 1994. peak 5 1983: 2 patents 1983 1985: 1 patents 1992: 1 patents 1992 1993: 1 patents 1994: 5 patents 1994 1998: 1 patents 1999: 2 patents 1999 2000: 1 patents 2001: 2 patents 2001 2003: 3 patents 2004: 1 patents 2004 2008: 2 patents 2008
Issued Patents All Time
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Showing 1–22 of 22 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
7463446 Two-plane balance for spindle motors — 2008-12-09
$15,000,000
7327531 Two-plane balance for spindle motors — 2008-02-05
$21,901,000
6741420 Hydrodynamic spindle motor with an internally disposed heating element David Jennings 2004-05-25
$9,038,000
6608733 Two-plane balance for spindle motors — 2003-08-19
$16,423,000
6561516 Low power high speed disc drive spindle seal Ram V. Pazhayannur , David D. Koester 2003-05-13
$6,350,000
6525440 Thermal compensation spindle for ceramic ball bearings David Jennings , Martin F. Byl , Jeffery A. LeBlanc , Robert M. Pelstring 2003-02-25
$6,909,000
6304411 Spring-contact spindle connector Michael D. Schroeder , Charles H. Smith 2001-10-16
6293705 Annular gimbal assembly suitable for disc drive spindle bearings and method of making same David Jennings 2001-09-25
6134976 Method and apparatus for testing a spindle in a disc drive — 2000-10-24
$57,505,000
5859745 Split ring mounting for disk drive spindle and actuator shafts Kent J. Forbord , Blaine Peterson 1999-01-12
$24,754,000
5856624 Method and apparatus for testing a spindle in a disc drive — 1999-01-05
$31,277,000
5847476 Audible noise reduction in a disc drive William C. Bright 1998-12-08
$57,931,000
5376850 Audible noise reduction in a disc drive William C. Bright 1994-12-27
$17,703,000
5305164 Disk drive hub assembly with air flow guide passages — 1994-04-19
$4,326,000
5295027 Disk drive with socket and plug interconnection to spindle motor Leon J. Valley 1994-03-15
$4,877,000
5295028 Spindle assembly with labyrinth seals and hub/back iron spacers — 1994-03-15
$4,877,000
5295029 Disk drive including unitary deck for aligning and supporting axially retractable spindle assembly William C. Bright , William J. Kostecka 1994-03-15
$4,877,000
5212607 Disk drive including unitary deck for aligning and supporting axially retractable spindle assembly William J. Kostecka , William C. Bright 1993-05-18
$6,858,000
5140479 Static eliminator for disc drive spindle William J. Kostecka 1992-08-18
$5,869,000
4521819 Cartridge load mechanism Gene F. Gorham , Steven Knopp 1985-06-04
4405136 Pneumatic cartridge seal for computer disc drive cartridge Steven Knopp 1983-09-20
4391543 Quick disconnect pack — 1983-07-05