Donald G. Lombardi

DW Drum Workshop: 40 patents #1 of 29Top 4%

📍 Thousand Oaks, CA: #21 of 1,766 inventorsTop 2%

🗺 California: #7,167 of 386,348 inventorsTop 2%

Overall (All Time): #49,360 of 4,157,543Top 2%

Patents All Time

Issued Patents All Time

Showing 51–53 of 53 patents

Patent #	Title	Co-Inventors	Date
4889028	Adjustable cymbal holder	—	1989-12-26
4819536	Drum pedal movement responsive device to produce electrical signal	—	1989-04-11
4756224	Drum beating apparatus with eccentric rotor	—	1988-07-12