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

Icon_funbox Bizarre Patents

Patent No. 6099319

Neuroimaging as a Marketing Tool

Neuroimaging as a means for validating whether a stimulus such as advertisement, communication, or product evokes a certain mental response such as emotion, preference, or memory, or to predict the consequences of the stimulus on later behavior such as consumption or purchasing.

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 2/8.4 - And movable polarizing filter disc (EPO)


Subclass of Class 2 - Apparel
Definition: Device wherein a mask, shield or hood is provided with a
No. of patents: 2
Last issue date: 08/02/1977


NumberTitleIssue Date
4039254Electro-optic welding lens assembly using multiple liquid crystal light shutters and polarizers
A liquid crystal welding lens assembly for use as the eyepiece of a welding helmet in which the light transmission of the lens assembly is no greater than 0.01% during the existence of a welding arc. This is achieved with the use of at least two liquid cr...
08/02/1977
4039803Electro-optic welding helmet lens assembly
A protective welding lens assembly for use as the eyepiece of a welding helmet. The lens assembly utilizes a liquid crystal light shutter together with an electrical circuit adapted to change the light shutter from a uniform light-transmitting condition t...
08/02/1977
 
Sign InRegister
Username  
Password   
forgot password?