Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Allen Ko — 2 Patents in 2019

Applied Materials: 2 patents #325 of 1,241Top 30%
Fremont, CA: #437 of 1,894 inventorsTop 25%
California: #14,923 of 67,890 inventorsTop 25%
Overall (2019): #194,799 of 560,194Top 35%
2 Patents 2019

Issued Patents 2019

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10276353 Dual-channel showerhead for formation of film stacks Kaushik Alayavalli, Xinhai Han, Praket P. Jha, Masaki Ogata, Zhijun Jiang +6 more 2019-04-30
10246772 Plasma enhanced chemical vapor deposition of films for improved vertical etch performance in 3D NAND memory devices Praket P. Jha, Xinhai Han, Thomas Jongwan Kwon, Bok Hoen Kim, Byung Ho Kil +2 more 2019-04-02