Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Dan Stefanescu — 2 Patents

Amazon: 2 patents #7,232 of 19,158Top 40%
New York, NY: #8,004 of 20,192 inventorsTop 40%
New York: #49,169 of 115,490 inventorsTop 45%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Dan Stefanescu has been granted 2 US patents while listed as an inventor at Amazon. The first was granted in 2020 and the most recent in June 2021. Dan Stefanescu ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Dan Stefanescu in New York, NY, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11024199 Foreign language learning dictionary system Dikla Treves, Geetika T. Lakshmanan, Yale Li, Aman Sagar, Michael Angelo Macchione, III 2021-06-01
10777096 System for assisting in foreign language learning Dikla Treves, Alexandra Hsiao, Fangbing Qiu, Aman Sagar, Michael Angelo Macchione, III 2020-09-15 $196,268,000