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

HTHeadway Technologies: 4 patents #135 of 309Top 45%
Milpitas, CA: #1,097 of 3,192 inventorsTop 35%
California: #126,026 of 386,348 inventorsTop 35%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Urmimala Roy has been granted 4 US patents while listed as an inventor at Headway Technologies. The first was granted in 2019 and the most recent in April 2021. Urmimala Roy ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Urmimala Roy in Milpitas, CA, US.

Patents per Year

Patents granted per year, 2019 to 2021Bar chart with a peak of 2 patents in 2021.peak 22019: 1 patents20192020: 1 patents20202021: 2 patents2021

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
10991386 Tapered junction shield for self-compensation of asymmetry with increasing aspect ratio for tunneling magneto-resistance (TMR) type read head Yan Wu 2021-04-27
10984824 Method of forming tapered junction shield for self-compensation of asymmetry with increasing aspect ratio for tunneling magneto-resistance (TMR) type read head Yan Wu 2021-04-20
10706878 Tapered junction shield for self-compensation of asymmetry with increasing aspect ratio for tunneling magneto-resistance (TMR) type read head Yan Wu 2020-07-07
10319398 Tapered junction shield for self-compensation of asymmetry with increasing aspect ratio for tunneling magneto-resistance (TMR) type read head Yan Wu 2019-06-11