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USPTO Patent Rankings Data through Sept 30, 2025
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Burton L. Preston

INInterpace: 2 patents #3 of 18Top 20%
Mansfield, OH: #48 of 264 inventorsTop 20%
Ohio: #18,857 of 73,341 inventorsTop 30%
Overall (All Time): #1,260,663 of 4,157,543Top 35%
4 Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
D533926 Toilet 2006-12-19
4479631 Hydraulically balanced valve mechanism R. Frank Nestich 1984-10-30
4453560 Hydraulically balanced valve mechanism R. Frank Nestich 1984-06-12
D270856 Holding tank for a boat or the like Robert S. Peets, James A. Sigler 1983-10-04