| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 8 | |
| #2 | Japan | 2 | |
| #3 | Germany | 1 |
| # | Industry | |
|---|---|---|
| #1 | Consumer goods | |
| #2 | Machines | |
| #3 | Measurement |
| # | Technology | |
|---|---|---|
| #1 | Special musical instruments | |
| #2 | Unspecified technologies | |
| #3 | Electrophonic musical instruments | |
| #4 | Time-interval measuring |
| # | Name | Total Patents |
|---|---|---|
| #1 | Lombardi Donald G | 11 |
| #2 | Sikra Richard A | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2019294119A1 | Metronome for improving musician's skill | |
| US8193435B1 | Snare bridge apparatus | |
| DE19720375A1 | Drum beater | |
| US5204485A | Multi-axle drum beater and pedal apparatus | |
| US5105706A | Music stand pedal frame and dual leg support | |
| US4889028A | Adjustable cymbal holder | |
| US4899633A | Drum synthesizer triggering apparatus | |
| US4819536A | Drum pedal movement responsive device to produce electrical signal | |
| US4756224A | Drum beating apparatus with eccentric rotor |