| Patent No. | Patent Title: |
| 4972926 | Hall information system for elevator |
| 4785293 | Alarm system prior to firedoor drop |
| 4760373 | Motorcycle helmet containing an automatic brake light |
| 4754265 | Phase shifter with slow transition detector |
| 4739301 | Device for temporarily blocking the re-measurement of an electric... |
| 4737759 | Level warning device |
| 4737776 | Circuit for detecting cut telephone service line and transmitting... |
| 4737760 | Tire pressure warning device |
| 4737775 | Insulation deterioration monitoring apparatus |
| 4736197 | Transit system third rail warning signal |
| 4734682 | Low fluid level warning system |
| 4734673 | Apparatus for detecting a start of an engine for a motor vehicle |
| 4734674 | Tire pressure warning system |
| 4730180 | Hose payout alarm system |
| 4728924 | Portable water detector for fuel tanks |
| 4728943 | Means for determining the state of lubrication in surfaces lubric... |
| 4728933 | Miniature dual cavity ringer |
| 4728922 | Vehicle monitoring system |
| 4728934 | Tactile stimulation device for hearing-impaired individuals |
| 4728951 | Vertical windshear detection for aircraft |
| 4727371 | Traffic control system and devices for alleviating traffic flow p... |
| 4725826 | Manipulator grip slip sensor |
| 4725811 | Wind shear detection and alerting system |
| 4725825 | Electric fence voltage indicator light |
| 4725824 | Doze prevention system |
| 4725822 | Shopping cart with lower tray signalling device |
| 4724424 | Warning chord sound producing apparatus including an integrated c... |
| 4723118 | Magnetic detection system for items on the lower tray of a shoppi... |
| 4721949 | System for measuring glaze-ice by microprocessor with new release... |
| 4721948 | Wallet with missing-card reminder |
| 4719805 | Dry flow sensor with automatic speed compensation and totalizer c... |
| 4719453 | Card carrier having an alarm |
| 4719445 | Method and device for simultaneously determining steering and whe... |
| 4717904 | Collision responsive signal emitter for a vehicle |
| 4717905 | Warning system including means for remotely energizing condition ... |
| 4716402 | Modular personal security device |
| 4716413 | Drunk driver detection system |
| 4714914 | Liquid immersion alarm |
| 4714915 | Portable electrostatic field safety monitor |
| 4714916 | Voltage loss detector |
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