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Class Information
Number: 434/300
Name: Education and demonstration > Science > Physics
Description: Subject matter relating to the study of matter and energy.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7430038 |
Apparatus for enhancing visualization of mechanical stress |
Sep. 30, 2008 |
| 7338287 |
Systems and methods for searching for and delivering solutions to specific problems and problem types |
Mar. 4, 2008 |
| 7266469 |
Method and article of manufacture for determining a rate of change of orientation of a plurality of fibers disposed in a fluid |
Sep. 4, 2007 |
| 6957960 |
Method and apparatus kit for demonstrating archimedes' principle |
Oct. 25, 2005 |
| 6821124 |
Laser frequency modulation tactical training system |
Nov. 23, 2004 |
| 6773264 |
Teaching apparatus for mechanics principles |
Aug. 10, 2004 |
| 6722940 |
Torsion spring powered toy vehicle |
Apr. 20, 2004 |
| 6582234 |
Method for demonstrating the inverse square law and apparatus therefor |
Jun. 24, 2003 |
| 6561810 |
Method and apparatus for teaching children about fluid piping systems |
May. 13, 2003 |
| 6547567 |
Bouncing ball apparatus |
Apr. 15, 2003 |
| 6478582 |
Free rotator demonstrator |
Nov. 12, 2002 |
| 6443736 |
Technology explorer model |
Sep. 3, 2002 |
| 6413100 |
System and methods for searching for and delivering solutions to specific problems and problem types |
Jul. 2, 2002 |
| 6402521 |
Apparatus for demonstrating changes in motion with respect to time |
Jun. 11, 2002 |
| 6382982 |
Educational tool comprised of selectable optically-linked modules |
May. 7, 2002 |
| 6290505 |
Ballistic performance simulator |
Sep. 18, 2001 |
| 6273727 |
Method and apparatus for calculating drug dosages and unit conversions and for teaching how to calculate drug dosages and unit conversions |
Aug. 14, 2001 |
| 6213781 |
Educational game using selective light displacement to teach physical concepts |
Apr. 10, 2001 |
| 6152741 |
Device for teaching electrostatic principles |
Nov. 28, 2000 |
| 6071165 |
Thermal-powered diving device |
Jun. 6, 2000 |
| 6016978 |
Device for producing a stationary particle cloud in a space particularly at an underpressure |
Jan. 25, 2000 |
| 6015296 |
Apparatus for generating nonlinear dynamic chaotic motion |
Jan. 18, 2000 |
| 6012959 |
Thermal- powered rocking device |
Jan. 11, 2000 |
| 5975911 |
Mechanical oscilloscope |
Nov. 2, 1999 |
| 5921781 |
3-dimensional models showing chemical point group symmetry |
Jul. 13, 1999 |
| 5915971 |
Tutorial device and method for determining drug dosages |
Jun. 29, 1999 |
| 5876212 |
Apparatuses and kits for teaching mathematics |
Mar. 2, 1999 |
| 5775917 |
Propeller-driven educational vehicle apparatus |
Jul. 7, 1998 |
| 5772444 |
Method and article for teaching the core construction of the singularity motion |
Jun. 30, 1998 |
| 5720618 |
Vacuum teaching device |
Feb. 24, 1998 |
| 5273436 |
Changeable grid system kit |
Dec. 28, 1993 |
| 5256071 |
Multiple-collision accelerator assembly |
Oct. 26, 1993 |
| 5252552 |
Superconductive device and method for demonstrating autorotation |
Oct. 12, 1993 |
| 5192212 |
Flexible hypresurface orbital model |
Mar. 9, 1993 |
| 5158462 |
Multiple-collision acceleration demonstrator and toy |
Oct. 27, 1992 |
| 5145378 |
Pendulum principle demonstration apparatus |
Sep. 8, 1992 |
| 5137487 |
Self-reversing symmetrical body |
Aug. 11, 1992 |
| 5049080 |
Waterwheel demonstrating apparatus |
Sep. 17, 1991 |
| 5009602 |
Rotational movement training apparatus |
Apr. 23, 1991 |
| 4971562 |
Didactic device to aid in understanding and teaching about electromagnetic fields and their effects |
Nov. 20, 1990 |
| 4886459 |
Precision controlled cartesian diver |
Dec. 12, 1989 |
| 4759719 |
Teaching device for the demonstration of scientific principles |
Jul. 26, 1988 |
| 4674983 |
Relation teaching block arrays |
Jun. 23, 1987 |
| 4543067 |
Amusement device |
Sep. 24, 1985 |
| 4345247 |
Display system for steady state waves |
Aug. 17, 1982 |
| 4298868 |
Electronic display apparatus |
Nov. 3, 1981 |
| 4099340 |
Chaotic motion generator |
Jul. 11, 1978 |
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