DM

Douglas A. Marsden

HL Helen Of Troy Limited: 1 patents #34 of 80Top 45%
📍 Marblehead, MA: #8 of 42 inventorsTop 20%
🗺 Massachusetts: #2,417 of 14,123 inventorsTop 20%
Overall (2021): #165,778 of 548,734Top 35%
2
Patents 2021

Issued Patents 2021

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
D935835 Cocktail shaker Benjamin J. Beck, Ryan Donovan, Michael T. McDuffee 2021-11-16
11019957 Coldwave appliance David Dussault, Benjamin J. Beck, Ryan Donovan 2021-06-01