Resources Contact Us Home
Browse by Category: Main > Communications
Class Information
Number: 116/80
Name: Signals and indicators > Alarms > Burglar > Portable > Key or keyhole
Description: Devices in which means are provided whereby the key or keyhole is utilized in securing the device to the door, the alarm being actuated by the insertion, the attempt to insert, or the turning of the key in the keyhole.

Patents under this class:

Patent Number Title Of Patent Date Issued
7866195 Door lock indicator Jan. 11, 2011

  Recently Added Patents
Detection of procedural deficiency across multiple business applications
Method and system for providing complete internet anywhere with partial server processing
Lubricating oil compositions
Amplitude-shift-keying (ASK) envelope detector and demodulation circuits
Managing method and apparatus for servicing contents provided by content provider
Biodiesel data collection system
ESD protection device and method for producing the same
  Randomly Featured Patents
Read-out information signal processing circuit in an optical recording and reproducing system
Fast transaction commit
Comb and the method of making same
Herbicide resistance genes
Fluid control device
Method for triggering a coupling unit
Methods and systems to provide a message in a messaging system without revealing an identity of the sending party
Harmonic-noise speech coding algorithm and coder using cepstrum analysis method
Polyurethane foams containing high levels of silicone-containing surfactant polymer to improve flame retardance and aged K-factors