Universally accessible smoke detector
Unobstructed fence security system
Unopened-door indicator
Untethered position tracking system
Unusual vibration transducer apparatus in machine tools
Urine detecting and signalling device for use in a diaper
Urinous wet alarm
USB port connectible device reminder
Use indicator
Use of a subcarrier in an organic semiconductor radio...
Use of detector arrays to detect cessation of motion
Use of evaporatively activated color change for verifying...
Use of mutter mode in asset tracking for gathering data from car
Use of RFIDs to measure flow-rates of materials flowing...
Use of rotating magnetic field to enhance communication with...
Use of visual building alarm system to display public...
Use of wing-fanning sounds to affect cockroach movement
User interface for a biomedical analyzer system
User interface for electronic devices
User interface to aid system installation