General Time Corporation
41Patents
0Active
41Granted
36Portfolio score
Filing activity: Jan 3, 1974 → Jun 3, 1992
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4604110A | Filter element, filter, and method for removing odors from indoor air | Performing Operations; Transporting | 75 | Expired |
| US4031363A | Display apparatus for automotive vehicles | Physics | 60 | Expired |
| US4534775A | Air treatment filter element and air treatment filter | Performing Operations; Transporting | 45 | Expired |
| US4031295A | Combination housing with compartment and ejector mechanism for ejecting a battery therefrom | Emerging Cross-Sectional Technologies | 39 | Expired |
| US4073133A | Electronic chime and strike system | Physics | 28 | Expired |
| US4138672A | Means for connecting a display in a circuit | Physics | 15 | Expired |
| US3952294A | Smoke detection alarm system | Physics | 14 | Expired |
| US4166428A | Intruder alarm | Physics | 14 | Expired |
| US4209185A | Sensing apparatus with electrical actuation system | Performing Operations; Transporting | 13 | Expired |
| USD247741S | Clock | General | 10 | Expired |
| US4172603A | Sensing apparatus with mechanical actuation system | Performing Operations; Transporting | 10 | Expired |
| US3988639A | Low power synchronous motor and line cord therefor | Electricity | 10 | Expired |
| USD251058S | Timer | General | 10 | Expired |
| US3930362A | Means for developing friction in clock setting shaft | Physics | 9 | Expired |
| USD247740S | Combined clock and case | General | 9 | Expired |
| US4115838A | Packaging of a semiconductor | Electricity | 9 | Expired |
| US4132873A | Multiposition switch | Electricity | 9 | Expired |
| US4059953A | Timepiece calendar indexing apparatus | Physics | 8 | Expired |
| US3937096A | Motor system with replaceable output shaft | Emerging Cross-Sectional Technologies | 8 | Expired |
| US4132986A | Electromagnetic indicator | Physics | 7 | Expired |
| US4166358A | Solid state alarm for clock-radio | Physics | 7 | Expired |
| US3967147A | Low power synchronous motor and line cord therefor | Electricity | 7 | Expired |
| US5339296A | Electric alarm clock with battery back-up | Physics | 7 | Expired |
| US4027468A | Day-date mechanism for travel clock | Physics | 6 | Expired |
| US4340948A | Single-coil balance wheel for driving a mechanical movement | Physics | 5 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.