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USPTO Patent Rankings Data through Sept 30, 2025
DH

Diane Howerton

Banning, CA: #1 of 6 inventorsTop 20%
California: #8,555 of 28,370 inventorsTop 35%
Overall (2004): #74,706 of 270,089Top 30%
1 Patents 2004

Issued Patents 2004

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6745719 Litter sifting device for a litter box 2004-06-08