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

A. David Erpelding — 49 Patents

HGHGST: 12 patents #162 of 1,677Top 10%
San Jose, CA: #1,000 of 32,062 inventorsTop 4%
California: #8,285 of 386,348 inventorsTop 3%
Overall (All Time): #55,592 of 4,157,543Top 2%
49 Patents All Time
A. David Erpelding has been granted 49 US patents while listed as an inventor at HGST. The first was granted in 1988 and the most recent in May 2021. A. David Erpelding ranks #55,592 of 4,157,543 US inventors in our database (top 1.3%). Patent records list A. David Erpelding in San Jose, CA, US.

Patents per Year

Patents granted per year, 1988 to 2021Bar chart with a peak of 6 patents in 1997.peak 61988: 1 patents19881991: 1 patents1995: 1 patents19951996: 1 patents1997: 6 patents19971998: 4 patents1999: 3 patents19992001: 2 patents2002: 1 patents20022003: 2 patents2004: 1 patents20042006: 5 patents2007: 3 patents20072008: 2 patents2009: 2 patents20092017: 5 patents2018: 3 patents20182019: 4 patents2020: 1 patents20202021: 1 patents2021

Issued Patents All Time

Showing 1–25 of 49 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11017810 Spring clip leader and housing for magnetic tape David Berman, William M. Dyer, Wayne Isami Imaino, Ronald R. Labby 2021-05-25 $5,474,000
10580451 Disc storage cassettes comprising index features David J. Altknecht, Donald S. Bethune, William M. Dyer, Steven R. Hetzler, Drew B. Lawson +1 more 2020-03-03 $1,865,000
10438629 Disc storage cassettes comprising track connectors David J. Altknecht, Donald S. Bethune, William M. Dyer, Steven R. Hetzler, Drew B. Lawson +1 more 2019-10-08 $4,743,000
10373642 Mechanized take-up reel and method for loading and unloading a tape storage medium Wayne Isami Imaino, Ronald R. Labby, Winfield S. Weaver 2019-08-06 $1,880,000
10242705 Disc storage cassettes comprising a movable bale David J. Altknecht, Donald S. Bethune, William M. Dyer, Steven R. Hetzler, Drew B. Lawson +1 more 2019-03-26 $2,148,000
10186295 Disc gripper for storage disc David J. Altknecht, John S. Best, Donald S. Bethune, William M. Dyer, Steven R. Hetzler +2 more 2019-01-22 $16,920,000
10127941 Optical disk drive guide David J. Altknecht, John S. Best, William M. Dyer, Steven R. Hetzler 2018-11-13 $2,931,000
10043547 Spring clip leader and housing for magnetic tape David Berman, William M. Dyer, Wayne Isami Imaino, Ronald R. Labby 2018-08-07 $1,950,000
9984722 Disc storage cassettes David J. Altknecht, Donald S. Bethune, William M. Dyer, Steven R. Hetzler, Drew B. Lawson +1 more 2018-05-29 $2,015,000
9792948 Mechanized take-up reel and method for loading and unloading a tape storage medium Wayne Isami Imaino, Ronald R. Labby, Winfield S. Weaver 2017-10-17 $4,096,000
9741390 Optical disc drive David J. Altknecht, John S. Best, Donald S. Bethune, William M. Dyer, Steven R. Hetzler +2 more 2017-08-22 $2,056,000
9741389 High performance robotic optical storage system David J. Altknecht, John S. Best, Donald S. Bethune, William M. Dyer, Steven R. Hetzler +2 more 2017-08-22 $2,056,000
9672863 Disc gripper for storage discs David J. Altknecht, John S. Best, Donald S. Bethune, William M. Dyer, Steven R. Hetzler +2 more 2017-06-06 $2,871,000
9633686 Disc storage cassettes David J. Altknecht, Donald S. Bethune, William M. Dyer, Steven R. Hetzler, Drew B. Lawson +1 more 2017-04-25 $1,937,000
7572499 Contact magnetic transfer template Zvonimir Z. Bandic, Jordan Asher Katine, Quang Le, Kim Y. Lee, Jui-Lung Li +1 more 2009-08-11 $112,000
7525767 System for low profile termination with robust alignment for wireless suspension in hard disk drive 2009-04-28 $89,000
7349184 System and apparatus for continuous reference plane for wireless suspension 2008-03-25 $208,000
7320174 Methods for creating ground paths for ILS Kevin P. Cowles 2008-01-22 $570,000
7293348 Method of forming a suspension for use in a disk drive having a media disk 2007-11-13 $177,000
7160477 Method for making a contact magnetic transfer template Zvonimir Z. Bandic, Jordan Asher Katine, Quang Le, Kim Y. Lee, Jui-Lung Li +1 more 2007-01-09 $107,000
7158348 Integrated lead suspension for use in a disk drive using a tri-metal laminate and method for fabrication Klaas B. Klaassen 2007-01-02
7150094 Method of stiffening an actuator comb and coil assembly 2006-12-19 $173,000
7110222 System and apparatus for assembling hard disk drive integrated lead suspensions to arm electronics cables via additional degrees of freedom at the tail termination and impedance grooming thereof 2006-09-19 $87,000
7054109 Balanced and damped suspension for use in a disk drive 2006-05-30 $114,000
7046483 Copper gimbal and gimbal damping for integrated lead suspension 2006-05-16 $99,000