Growing community of inventors

Burnsville, MN, United States of America

John P Spangler

Average Co-Inventor Count = 8.00

ph-index = 1

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 8

John P Spangler ↔ Qing I He (1 patent)John P Spangler ↔ Hong Ying Wang (1 patent)John P Spangler ↔ Steven Carl Riemer (1 patent)John P Spangler ↔ Matthew Johnson (1 patent)John P Spangler ↔ Robbee Lee Grimm (1 patent)John P Spangler ↔ Brian J Daniels (1 patent)John P Spangler ↔ Craig A Ballentine (1 patent)John P SpanglerJohn P Spangler (1 patent)Qing I HeQing I He (28 patents)Hong Ying WangHong Ying Wang (22 patents)Steven Carl RiemerSteven Carl Riemer (18 patents)Matthew JohnsonMatthew Johnson (8 patents)Robbee Lee GrimmRobbee Lee Grimm (5 patents)Brian J DanielsBrian J Daniels (2 patents)Craig A BallentineCraig A Ballentine (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Seagate Technology Incorporated (1 from 8,683 patents)


1 patent:

1. 6600637 - Edge barrier to prevent spin valve sensor corrosion and improve long term reliability

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1/2/2026
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