KM

Katherine A Mermelstein

HA Hasbro: 1 patents #190 of 447Top 45%
Overall (All Time): #1,950,914 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
9933219 Toy projectile launchers with two trigger safety locks John Paul Lallier, David M. Nugent, Tadeusz W. Keska 2018-04-03
9513075 Toy launch apparatus with open top dart drum John Paul Lallier, David M. Nugent, Tadeusz W. Keska 2016-12-06