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USPTO Patent Rankings Data through Sept 30, 2025
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David P. Egen — 1 Patent

New York, NY: #11,395 of 20,192 inventorsTop 60%
New York: #67,335 of 115,490 inventorsTop 60%
Overall (All Time): #4,041,490 of 4,157,543Top 100%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4473234 Carriage for traversing stairs 1984-09-25