Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Charles Sugalski — 1 Patent

ESEssef: 1 patents #17 of 36Top 50%
Ravenna, OH: #95 of 163 inventorsTop 60%
Ohio: #42,926 of 73,341 inventorsTop 60%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Charles Sugalski has been granted 1 US patent while listed as an inventor at Essef. All of these patents were granted in 1994. Charles Sugalski ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Charles Sugalski in Ravenna, OH, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5356589 Method and apparatus for forming rotationally cast tank liner having an end fitting 1994-10-18 $785,000