Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Roy William Chantrell — 4 Patents

STSeagate Technology: 3 patents #1,587 of 4,722Top 35%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Roy William Chantrell has been granted 4 US patents while listed as an inventor at Seagate Technology. The first was granted in 2007 and the most recent in June 2018. Roy William Chantrell ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Roy William Chantrell in Llangefni, PA, GB.

Patents per Year

Patents granted per year, 2007 to 2018Bar chart with a peak of 1 patents in 2007.peak 12007: 1 patents20072015: 1 patents20152017: 1 patents20172018: 1 patents2018

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
10006884 Method and apparatus for determining Curie temperature distribution of a sample of magnetic material Ganping Ju, Jason L Presseky, Xiaowei Wu, Xi Chen, Xiaobin Zhu +1 more 2018-06-26 $44,812,000
9773603 Magnetization reversal Theodorus Henricus Maria Rasing, Johan Mentink, Andrei Kirilyuk, Alexey Kimel, Richard F. Evans +2 more 2017-09-26
9103729 Method and apparatus for determining curie temperature distribution of a sample of magnetic material Ganping Ju, Jason L. Pressesky, Xiaowei Wu, Xi Chen, Xiaobin Zhu +1 more 2015-08-11 $8,268,000
7166997 Complex transverse AC magneto-optic susceptometer for determination of volume and anisotropy field distribution in recording media Ganping Ju, Hong Zhou, Dieter K. Weller 2007-01-23 $31,199,000