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

Icon_funbox Bizarre Patents

Patent No. 6681419

Forehead support apparatusĀ 

A forehead support apparatus for resting a standing users forehead against a wall above a bathroom commode or urinal or beneath a showerhead.

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 257/E27.002 - Including bulk negative resistance effect component (EPO)


Subclass of Class 257 - Active solid-state devices (e.g., transistors, solid-state diodes)
Definition: This subclass is indented under subclass E27.001. This subclass
No. of patents: 6
Last issue date: 01/29/2008


NumberTitleIssue Date
7323349Self-aligned cross point resistor memory array
A method of fabricating resistor memory array includes preparing a silicon substrate; depositing a bottom electrode, a sacrificial layer, and a hard mask layer on a substrate P+ layer; masking, patterning and etching to remove, in a first direction, a portion of the...
01/29/2008
7221005Negative resistance field-effect device
A negative resistance field-effect element that is a negative differential resistance field-effect element capable of achieving negative resistance at a low power supply voltage (low drain voltage) and also enabling securement of a high PVCR is formed on its InP sub...
05/22/2007
4402127Method of manufacturing a logic circuit including at least one field-effect transistor structure of the normally-off type and at least one saturable resistor
A method of manufacturing a logic circuit having at least one field effect transistor connected in series with at least one saturable resistor, wherein an active semiconductor layer is formed with a predetermined thickness on a semi-insulating substrate, ...
09/06/1983
4394589Logic circuit including at least one resistor or one transistor having a saturable resistor field effect transistor structure
A logic circuit including an input stage, wherein a first field-effect transistor is in series with a first saturable resistor interposed on the drain side in the supply of the first transistor, and an output stage including a second transistor which is i...
07/19/1983
4380020Active high frequency semiconductor device with integral waveguide
An active semiconductor device, such as a Gunn effect device, capable of operation at extremely high frequencies, fabricated in situ on a substrate that also serves as a dielectric waveguide to propagate energy from the device. In the embodiment disclosed...
04/12/1983
3959807Planar transferred electron device with integral nonlinear load resistor
A large voltage swing across a typical planar transferred electron logic device is achieved by a nonlinear load resistor in series with the transferred electron device. The nonlinear load resistor includes a body of transferred electron effect material wi...
05/25/1976
 
Sign InRegister
Username  
Password   
forgot password?