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Charles J. Fresch — 4 Patents

LELewco: 4 patents #3 of 7Top 45%
Sandusky, OH: #18 of 125 inventorsTop 15%
Ohio: #19,019 of 73,341 inventorsTop 30%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Charles J. Fresch has been granted 4 US patents while listed as an inventor at Lewco. The first was granted in 2018 and the most recent in April 2021. Charles J. Fresch ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Charles J. Fresch in Sandusky, OH, US.

Patents per Year

Patents granted per year, 2018 to 2021Bar chart with a peak of 1 patents in 2018.peak 12018: 1 patents20182019: 1 patents20192020: 1 patents20202021: 1 patents2021

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
10988314 Drive system for conveyors Gerald T. Guerra, Albert E. Sparling 2021-04-27
10556745 Drive system for conveyors Gerald T. Guerra, Albert E. Sparling 2020-02-11
10472179 Cartridge bearing assembly for roller conveyors Gerald T. Guerra, Albert E. Sparling 2019-11-12
9981804 Drive system for conveyors Gerald T. Guerra, Albert E. Sparling 2018-05-29

Frequent Collaborators

Albert E. Sparling4 shared
Gerald T. Guerra4 shared

Nearby-Ranked Inventors

Jagadeesh Kandasamy4
Ross CABOT4
George Ueda4
Franz A. Gruswitz4
Tommy Glimberg4
Vinayakaraddy Gulabal4
Sandra Bittorf4
Aviel FOGEL4
Eric Matthew Walton4