Burgett, Inc.
17Patents
3Active
17Granted
32Portfolio score
Filing activity: May 31, 1991 → Jun 19, 2007 · 3 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5841050A | Method and apparatus for optically determining note characteristics from key motion in a keyboard operated musical instrument | Physics | 98 | Expired |
| US5083491A | Method and apparatus for re-creating expression effects on solenoid actuated music producing instruments | Physics | 34 | Expired |
| US5905220A | Method and apparatus for sensing pedal motion and actuating pedals in player pianos | Physics | 28 | Expired |
| US5237125A | Method and apparatus for measuring velocity of key motion in a keyboard operated musical instrument | Physics | 16 | Expired |
| US5524521A | Method and apparatus for optically determining note characteristics in a keyboard operated musical instrument | Physics | 15 | Expired |
| US6712323B1 | Recording sensor mounting bracket for acoustic pianos | Physics | 12 | Expired |
| US5834669A | Method and apparatus for optically determining note characteristics from hammer catchers in a keyboard operated musical instrument | Emerging Cross-Sectional Technologies | 9 | Expired |
| US6209838A | Recording sensor mounting rail for keyboard operated musical instruments | Physics | 9 | Expired |
| US7531736B2 | System and method for adjusting MIDI volume levels based on response to the characteristics of an analog signal | Physics | 6 | Active |
| US7385131B2 | Method and apparatus of music obfuscation to limit unauthorized playback | Physics | 5 | Active |
| US5546842A | Recording sensor mounting rail for keyboard operated musical instrument | Physics | 4 | Expired |
| US7217880B2 | Previous event feedback system for electronic player piano systems | Physics | 3 | Expired |
| US5756910A | Method and apparatus for actuating solenoids in a player piano | Physics | 3 | Expired |
| US6153819A | Note release control method for solenoid actuated piano actions | Physics | 2 | Expired |
| US6687636B2 | Method of estimating solenoid heat accumulation and compensating for solenoid force loss | Physics | 2 | Expired |
| US5911169A | Recording sensor mounting rail for keyboard operated musical instrument | Physics | 2 | Expired |
| US7638696B2 | Reduced friction piano action pins | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.