OTTO ENGINEERING, INC.
25Patents
11Active
25Granted
43Portfolio score
Filing activity: Jan 13, 1975 → Jun 30, 2021 · 3 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5655026A | Ear receiver | Electricity | 85 | Expired |
| US4432470A | Multicomponent liquid mixing and dispensing assembly | Mechanical Engineering; Lighting; Heating | 52 | Expired |
| US6920228B2 | Lightweight headset for high noise environments | Electricity | 42 | Expired |
| US4758692A | Joystick type control device | Emerging Cross-Sectional Technologies | 38 | Expired |
| US5343007A | Rocker switch | Electricity | 34 | Expired |
| US4215257A | Precision toggle switch | Electricity | 22 | Expired |
| US5158172A | Toggle switch | Electricity | 22 | Expired |
| US4403764A | Method and apparatus for controlling flow of work materials | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US4941197A | Roller bearing device and apparatus using same | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| USD744458S1 | Speaker microphone | General | 12 | Active |
| USD743950S1 | Speaker microphone | General | 12 | Active |
| US4308434A | Multiposition electrical switch | Electricity | 11 | Expired |
| US4929808A | Electrical switch component and switches formed thereby | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US3995365A | Method of forming electrical contacts | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4762972A | Enclosed externally actuated switch assembly | Electricity | 4 | Expired |
| USD941459S1 | Ear tip | General | 4 | Active |
| US4145590A | Actuation for sequentially operating plural switches | Electricity | 4 | Expired |
| US9386368B2 | Remote speaker microphone | Electricity | 3 | Active |
| US11019450B2 | Directional awareness audio communications system | Electricity | 1 | Active |
| US11671783B2 | Directional awareness audio communications system | Electricity | 0 | Active |
| US11706580B2 | Multi-input push-to-talk switch with binaural spatial audio positioning | Electricity | 0 | Active |
| USD734304S1 | Speaker microphone | General | 0 | Active |
| US9942731B2 | Radio alert system and method | Electricity | 0 | Active |
| US9323279B2 | Adjustable grip hand rest | Physics | 0 | Active |
| USD997114S1 | Speaker microphone | General | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.