JG

John J. Good

DW Drum Workshop: 2 patents #1 of 2Top 50%
📍 Thousand Oaks, CA: #49 of 241 inventorsTop 25%
🗺 California: #7,487 of 41,698 inventorsTop 20%
Overall (2011): #90,811 of 364,097Top 25%
2
Patents 2011

Issued Patents 2011

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7942176 Drum shell formation — 2011-05-17
7902444 Magnetic and adjustable throw-off for snare drum Richard A. Sikra 2011-03-08