U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Bizarre Patents

Patent No. 5823572

Self Defense Weapon With Memo

A self defense weapon formed as a memo pad and which is easily held by a person's fingers, therefore making it possible to provide protection from a mugger and also to quickly and easily write a record or a message without failure of missing or forgetting significant information under a stressful situation.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 327/586 - Capacitive diode


Subclass of Class 327 - Miscellaneous active electrical nonlinear devices, circuits, and systems
Definition: Subject matter including a voltage responsive diode whose
No. of patents: 45
Last issue date: 07/28/2009


  2  
NumberTitleIssue Date
4109212Complementary distortion circuit
A complementary distortion circuit for reducing the level of IM products in the output of a TWT amplifier. One embodiment of the invention includes a 3 db, 90° coupler to divide the input signal into two components of equal amplitude but differing phase ...
08/22/1978
4023053Variable capacity diode device
A semiconductor chip including at least three variable capacity diodes for use at a frequency of 30 to 300 megaherzs is mounted on a grounding member so as to be sealed within a package. A plurality of external connection conductors each coupled to the di...
05/10/1977
4021740Sinewave clock driver with adjustable delay
A sinewave clock distribution network and a clock driver for use in the network permit simplified distribution and synchronization in very high speed logic and digital transmission systems. The sinewave central clock is connected through a branching netwo...
05/03/1977
4003076Single bipolar transistor memory cell and method
Single bipolar transistor memory cell in which information is stored on the collector to substrate capacitance. This capacitance may be enhanced by an additional diffused region. Storage and retrieval of information is accomplished through only two leads ...
01/11/1977
3953808Solid state amplifier
A solid state amplifier includes at least one junction field effect transistor and an impedance network coupled between a signal input terminal of the amplifier and a gate terminal of the transistor. The network includes a p-n junction device having a reg...
04/27/1976
  2  
 
Sign InRegister
Username  
Password   
forgot password?