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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Leonid Vorobyev — 2 Patents

Walnut Creek, CA: #596 of 1,300 inventorsTop 50%
California: #187,151 of 386,348 inventorsTop 50%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Leonid Vorobyev has been granted 2 US patents. The first was granted in 2006 and the most recent in May 2018. Leonid Vorobyev ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Leonid Vorobyev in Walnut Creek, CA, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
9982107 Method of devulcanization of sulfur-cured rubber Vladimir Borisovich Bosnik 2018-05-29
7008555 Epoxy resin curing agents and epoxy resin compositions Brian S. Hayes, Richard J. Moulton, Doyle G. Dixon 2006-03-07