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Class Information
Number: 340/539.1
Name: Communications: electrical > Condition responsive indicating system > With particular coupling link > Radio
Description: Subject matter where the communication link is by radio waves (i.e., other than light, X, or gamma rays, etc.).
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6570497 |
Apparatus and method for rail track inspection |
May. 27, 2003 |
| 6567769 |
Unattendant data center environment protection, control, and management system |
May. 20, 2003 |
| 6563416 |
Locking device for a motor vehicle having a number of doors |
May. 13, 2003 |
| 6559753 |
Selective radio call receiver capable of receiving common data in emergency mode |
May. 6, 2003 |
| 6559760 |
Platform monitoring system |
May. 6, 2003 |
| 6556135 |
System for indicating status of a vehicle |
Apr. 29, 2003 |
| 6545601 |
Ground based security surveillance system for aircraft and other commercial vehicles |
Apr. 8, 2003 |
| 6542078 |
Portable motion detector and alarm system and method |
Apr. 1, 2003 |
| 6538571 |
Switch arrangement of a wireless burglar alarm system |
Mar. 25, 2003 |
| 6529128 |
Smart wireless fire site notifying device |
Mar. 4, 2003 |
| 6529133 |
Repository and monitoring system therefor |
Mar. 4, 2003 |
| 6525655 |
Diaphragm-type tire pressure indicator |
Feb. 25, 2003 |
| 6525662 |
Safety garment |
Feb. 25, 2003 |
| 6525663 |
Automatic system for monitoring persons entering and leaving changing room |
Feb. 25, 2003 |
| 6525664 |
Control console remote monitoring system |
Feb. 25, 2003 |
| 6522241 |
Motor vehicle equipped with a so-called "hands-free" access system |
Feb. 18, 2003 |
| 6522250 |
Movement history based selective distribution of generally broadcast information |
Feb. 18, 2003 |
| 6522253 |
Luggage locking and locating device |
Feb. 18, 2003 |
| 6518875 |
Apparatus and method for sensing a condition of a vehicle tire |
Feb. 11, 2003 |
| 6518881 |
Digital communication system for law enforcement use |
Feb. 11, 2003 |
| 6518882 |
Key fob with valet and car locator feature |
Feb. 11, 2003 |
| 6515585 |
Reminder system |
Feb. 4, 2003 |
| 6515588 |
Monitoring and alerting system for luggage |
Feb. 4, 2003 |
| 6512451 |
Manhole vehicle sensor |
Jan. 28, 2003 |
| 6512455 |
System and method for monitoring assets, objects, people and animals utilizing impulse radio |
Jan. 28, 2003 |
| 6512456 |
Mobile medical monitoring device |
Jan. 28, 2003 |
| 6509830 |
Systems and methods for providing customizable geo-location tracking services |
Jan. 21, 2003 |
| 6509833 |
Method and system for providing a warning alert |
Jan. 21, 2003 |
| 6509834 |
Device having vehicle remote convenience control and interpersonal communication function abilities |
Jan. 21, 2003 |
| 6507276 |
Tire pressure monitoring system |
Jan. 14, 2003 |
| 6507280 |
Device for mounting a communication unit to a helmet |
Jan. 14, 2003 |
| 6504472 |
Apparatus and method for electronically delaying or stopping vehicles |
Jan. 7, 2003 |
| 6504476 |
Method for generating a warning signal to switch on the lighting system of a vehicle and devices for use with said method |
Jan. 7, 2003 |
| 6504486 |
Dual voltage sense cell for input/output dynamic termination logic |
Jan. 7, 2003 |
| 6501378 |
Item locator system |
Dec. 31, 2002 |
| 6501382 |
Bearing with data storage device |
Dec. 31, 2002 |
| 6501386 |
Systems within a communication device for evaluating movement of a body and methods of operating the same |
Dec. 31, 2002 |
| 6501391 |
Internet communication of parking lot occupancy |
Dec. 31, 2002 |
| 6498565 |
Two way tracking system and method using an existing wireless network |
Dec. 24, 2002 |
| 6496111 |
Personal security system |
Dec. 17, 2002 |
| 6492904 |
Method and system for coordinating timing among ultrawideband transmissions |
Dec. 10, 2002 |
| 6492907 |
Detector system |
Dec. 10, 2002 |
| 6489886 |
Security system to prevent unauthorized starting of the engine of a vehicle |
Dec. 3, 2002 |
| 6486776 |
RF transponder and method of measuring parameters associated with a monitored object |
Nov. 26, 2002 |
| 6486777 |
Personal monitoring apparatus and method |
Nov. 26, 2002 |
| 6486786 |
Water-monitoring apparatus with anchor |
Nov. 26, 2002 |
| 6487375 |
System to communicate information from a plurality of machines to a remotely located receiver |
Nov. 26, 2002 |
| 6480098 |
Remote vehicle control system including common carrier paging receiver and related methods |
Nov. 12, 2002 |
| 6480108 |
Method and apparatus for tracking and locating a moveable article |
Nov. 12, 2002 |
| 6480115 |
Multiple hazard field marker and components therefor |
Nov. 12, 2002 |
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