Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Dafina Toncheva — 2 Patents

Microsoft: 2 patents #17,644 of 40,388Top 45%
Redmond, WA: #4,371 of 8,547 inventorsTop 55%
Washington: #35,700 of 76,902 inventorsTop 50%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Dafina Toncheva has been granted 2 US patents while listed as an inventor at Microsoft. The first was granted in 2008 and the most recent in September 2009. Dafina Toncheva ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Dafina Toncheva in Redmond, WA, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
7587661 Identifying design issues in electronic forms Joshua Bell, Nicholas Dallett, Willson Kulandai Raj David, David Matthew Snow, Aleksandr Tsybert 2009-09-08 $39,068,000
7379551 Method and system for recovering password protected private data via a communication network without exposing the private data Kok Wai Chan, Baskaran Dharmarajan, Rahul Shrikant Newaskar, Adam Back 2008-05-27 $21,072,000