DK

Douglas A. Knight

MA Mattel: 1 patents #611 of 1,179Top 55%
Overall (All Time): #3,561,736 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6470982 Children's ride-on vehicle with mechanical speed control Gerald P. Sitarski, Daniel Dignitti, Steven Robert Drosendahl, Walter C. Miazga 2002-10-29