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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 |
| 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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