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USPTO Patent Rankings Data through Sept 30, 2025
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Duane G. Mennenga

Meservey, IA: #1 of 1 inventorsTop 100%
Iowa: #250 of 1,029 inventorsTop 25%
Overall (2002): #264,319 of 266,432Top 100%
1 Patents 2002

Issued Patents 2002

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6477985 Apparatus and method for converting a stock trailer into a horse trailer Barton L. Saylor 2002-11-12