Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Ashok Das — 3 Patents

Applied Materials: 3 patents #3,025 of 7,310Top 45%
Sunnyvale, CA: #6,613 of 14,302 inventorsTop 50%
California: #150,760 of 386,348 inventorsTop 40%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Ashok Das has been granted 3 US patents while listed as an inventor at Applied Materials. The first was granted in 1999 and the most recent in July 2003. Ashok Das ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Ashok Das in Sunnyvale, CA, US.

Patents per Year

Patents granted per year, 1999 to 2003Bar chart with a peak of 1 patents in 1999.peak 11999: 1 patents19992001: 1 patents20012003: 1 patents2003

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6589407 Aluminum deposition shield Anantha K. Subramani, Leif DeLaurentis, Michael Rosenstein 2003-07-08 $32,858,000
6190037 Non-intrusive, on-the-fly (OTF) temperature measurement and monitoring system Nety M. Krishna, Marc Schweitzer, Nalin Patadia, Wei Yang, Umesh M. Kelkar +3 more 2001-02-20 $78,613,000
5990453 High pressure/high temperature process chamber Joe Stevens, Erich Tzou, Matt Cheng-Hsiung Tsai 1999-11-23 $60,350,000