| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 15 |
| # | Industry | |
|---|---|---|
| #1 | Consumer goods | |
| #2 | Electrical machinery and energy | |
| #3 | Measurement | |
| #4 | Control | |
| #5 | Machines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Gibbs Thomas B | 8 |
| #2 | Krug William H | 4 |
| #3 | Ziehlke Robert J | 4 |
| #4 | Marshall James L | 1 |
| #5 | Shoup Allen A | 1 |
| #6 | Polasik Joseph G | 1 |
| #7 | Jean Fink | 1 |
| #8 | Brandt Raymond W | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3150227A | Tone generator | |
| US3150228A | Electronic musical instrument | |
| US3109341A | Key switch | |
| US3049957A | Instrument keying circuit | |
| US3054319A | Vibrato mechanism | |
| US3073204A | Percussion system for an electronic musical instrument | |
| US3078753A | Swell control | |
| US3164660A | Voltage regulator | |
| US3068334A | Keyboard for electrical instrument | |
| US3026757A | Transient filter | |
| US2994241A | Tuning fork | |
| US3056053A | Two-phase clock motor | |
| US3069957A | Vibrato device for a musical instrument | |
| US3075423A | Swell control | |
| US3026758A | Tremolo producing means for an electrical musical instrument |