Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Oleg Gratchev — 5 Patents

TETooltek Engineering: 2 patents #3 of 5Top 60%
ULUlvac: 2 patents #199 of 680Top 30%
San Jose, CA: #10,871 of 32,062 inventorsTop 35%
California: #107,996 of 386,348 inventorsTop 30%
Overall (All Time): #907,971 of 4,157,543Top 25%
5 Patents All Time
Oleg Gratchev has been granted 5 US patents while listed as an inventor at Tooltek Engineering. The first was granted in 2002 and the most recent in June 2011. Oleg Gratchev ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Oleg Gratchev in San Jose, CA, US.

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
7963631 Printhead maintenance station David Albertalli, Robert Taff 2011-06-21
7901026 Drop analysis system David Albertalli, Robert G. Boehm, Jr., James Middleton, Perry West 2011-03-08
7160105 Temperature controlled vacuum chuck Charles Edwards, David Albertalli 2007-01-09
6836949 Method for mounting a sleeve on a spindle Hooshang Jahani, Scott R. Bruner 2005-01-04
6363594 Apparatus for mounting a sleeve on a spindle Hooshang Jahani, Scott R. Bruner 2002-04-02