Baker Industries, Inc.
24Patents
0Active
24Granted
33Portfolio score
Filing activity: Sep 18, 1978 → May 6, 1991
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4507652A | Bidirectional, interactive fire detection system | Physics | 52 | Expired |
| US4470047A | Bidirectional, interactive fire detection system | Physics | 45 | Expired |
| US4742335A | Sequential and/or random polling system with virtually instantaneous response time | Physics | 38 | Expired |
| US4394655A | Bidirectional, interactive fire detection system | Physics | 31 | Expired |
| US4333093A | Intrusion detection system | Physics | 29 | Expired |
| US4236822A | Fire detector housing | Physics | 28 | Expired |
| USD264194S | Door alarm | General | 26 | Expired |
| US4850018A | Security system with enhanced protection against compromising | Physics | 25 | Expired |
| US4563628A | Supervision system for monitoring the condition of a battery and a series-connected fuse | Emerging Cross-Sectional Technologies | 23 | Expired |
| US4333029A | Piezoelectric seismic sensor for intrusion detection | Electricity | 23 | Expired |
| US4287515A | Fire detection system with multiple output signals | Physics | 22 | Expired |
| US4266219A | Supervisory control system for a smoke detector | Physics | 19 | Expired |
| US4581605A | System for displaying time-related occurrence of alarm-type events | Physics | 19 | Expired |
| US4990888A | Unitary alarm sensor and communication package for security alarm system | Emerging Cross-Sectional Technologies | 18 | Expired |
| USD265299S | Alarm repeater | General | 15 | Expired |
| US4853685A | Switch monitoring arrangement with remote adjustment capability having debounce circuitry for accurate state determination | Physics | 13 | Expired |
| US4529970A | Supervision system for monitoring the integrity of a transmission line | Physics | 10 | Expired |
| USD264564S | Window alarm | General | 8 | Expired |
| US5162978A | Frame support for sliding printed circuit boards | Electricity | 7 | Expired |
| US4956637A | System for detecting irregular operation of switch state verification circuit | Physics | 6 | Expired |
| US4658249A | Data communication system with key data bit denoting significance of other data bits | Physics | 5 | Expired |
| US5243336A | Relay supervision system | Electricity | 4 | Expired |
| US5164702A | Test apparatus and method for security system | Physics | 1 | Expired |
| US4952926A | Selective clearing of latched circuits | Physics | 1 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.