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Class Information
Number: 434/301
Name: Education and demonstration > Science > Physics > Electricity or magnetism
Description: Subject matter relating to the phenomena of electrically or magnetically charged particles, the interrelationship therebetween, the fields produced by charged particles, the flow of electrons in a circuit, or electrical waveforms.

Patents under this class:

Patent Number Title Of Patent Date Issued
8561329 Rotational displays Oct. 22, 2013
8246356 Magnetic flux viewer Aug. 21, 2012
7963771 Experiment and education system employing a plurality of units Jun. 21, 2011
7874089 Rotational displays Jan. 25, 2011
7862882 Re-positionable magnetic art apparatus Jan. 4, 2011
7850457 Antistatic demonstrator Dec. 14, 2010
7559768 Modular wearable circuit Jul. 14, 2009
7260906 Reverse-rotation displays Aug. 28, 2007
6910894 Hands on instruction manual Jun. 28, 2005
6773265 Electronic simulator Aug. 10, 2004
6589683 Regenerative fuel cell learning kit Jul. 8, 2003
6402521 Apparatus for demonstrating changes in motion with respect to time Jun. 11, 2002
6152741 Device for teaching electrostatic principles Nov. 28, 2000
6017220 Magnetic geometric building system Jan. 25, 2000
6015296 Apparatus for generating nonlinear dynamic chaotic motion Jan. 18, 2000
5846088 Teaching appparatus for magnetic torque experiments Dec. 8, 1998
5788506 Apparatus and method for displaying the flow of a solution in response to the movement of magnetic particles Aug. 4, 1998
5772445 Electrostatic meter Jun. 30, 1998
5742486 Reusable electronic circuit building set with interchangeable modular components Apr. 21, 1998
5318302 Magnetic puzzle Jun. 7, 1994
5252552 Superconductive device and method for demonstrating autorotation Oct. 12, 1993
5154615 Educational toy Oct. 13, 1992
5090643 Force generating system Feb. 25, 1992
5008617 Functional testing of ultra large area, ultra large scale integrated circuits Apr. 16, 1991
5004424 Apparatus for demonstrating and studying the operation of a fuel cell Apr. 2, 1991
4971562 Didactic device to aid in understanding and teaching about electromagnetic fields and their effects Nov. 20, 1990
4472145 Apparatus for teaching electrochemical principles Sep. 18, 1984
4430063 Electrical machine constructional set Feb. 7, 1984
4404766 Magnetic toy Sep. 20, 1983
4364196 Method of operating ferrous toy Dec. 21, 1982
4285158 Toy for detecting magnetic fields with electrical compass contacts Aug. 25, 1981
4267647 Apparatus for demonstrating magnetic force May. 19, 1981
4259789 Simulation technique for generating a sudden open circuit on high current lines Apr. 7, 1981
4068392 Interaction and relativity cart Jan. 17, 1978
4066920 Electrostatically chargeable device Jan. 3, 1978

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