| Patent No. | Patent Title: |
| 5062150 | Fiber-based free-space optical system |
| 5059951 | Method and apparatus for integrated data capture and electronic a... |
| 5057820 | Optical warning system |
| 5055827 | Fiber optic security system |
| 5046140 | Automatic optical frequency acquisition and tracking apparatus fo... |
| 5038406 | Secure two-way submarine communication system |
| 5032824 | Personal alarm |
| 5027105 | Motion detectors and security devices incorporating same |
| 5027163 | High level wide band RF mixer |
| 5025488 | Optical heterodyne detector |
| 5023596 | Bicycle alarm |
| 5014039 | Door answering and intruder alert apparatus and method |
| 5014040 | Personal locator transmitter |
| 5008654 | Patient ambulation motion detector |
| 5008957 | Multilevel optical signal transmitter |
| 5006856 | Electronic article surveillance tag and method of deactivating ta... |
| 5006831 | Device providing for the safety of a man overboard |
| 5001458 | Method of remote sensing of objects |
| 5001455 | Portable signaling device |
| 5001461 | Ski equipment theft alarm |
| 5001460 | System for protecting portable articles such as cases and handbag... |
| 5001466 | Earthquake detector |
| 4999614 | Monitoring system using infrared image processing |
| 4994791 | Progressively monitorable fire alarm system |
| 4995101 | Secure two-way communications with submerged submarines |
| 4994784 | Paging receiver |
| 4990894 | Ventilator monitor and alarm apparatus |
| 4985888 | Token ring system hierarchy |
| 4980671 | Remote confinement system with timed tamper signal reset |
| 4980665 | Remote control repeater |
| 4979234 | Saturated semiconductor laser amplifier for compensation of optic... |
| 4977395 | Vibration analyzer |
| 4975678 | Car alarm control system |
| 4973944 | Electrical signal and alarm protection proximity device |
| 4972515 | Polarization diversity receiver having little deteriorated sensit... |
| 4972178 | Fire monitoring system |
| 4970495 | Resonant frequency characteristic tag and method of manufacturing... |
| 4968973 | Anti-theft device |
| 4967185 | Multi-directionally responsive, dual-status, magnetic article ... |
| 4965856 | Secure optical-fiber communication system |
Bizarre Patents 
PatentStorm News
