


Class Information
Number: 434/211
Name: Education and demonstration > Mathematics > Geometry, trigonometry, or physical mathematic model structure
Description: Subject matter relating to the branches of mathematics that deal with (a) the measurement, properties, and relationships of points, lines, angles, surfaces, and solids, (b) the study of trigonometric functions and their applications, or (c) relating to a physical representation of some mathematical relationship, e.g., a model of a parabola.
Subclasses under this class:
Patents under this class:
Patent Number 
Title Of Patent 
Date Issued 
8602790 
Demonstration tools for geometric properties 
Dec. 10, 2013 
8444419 
Polygonal device for kinesthetic learners 
May. 21, 2013 
8206155 
Trigonometry teaching aid system 
Jun. 26, 2012 
7942675 
Calculus teaching aid 
May. 17, 2011 
7764985 
Surgical navigation system component fault interfaces and related processes 
Jul. 27, 2010 
7713060 
Joining mechanism for lightweight applications 
May. 11, 2010 
7542932 
Systems and methods for multiobjective portfolio optimization 
Jun. 2, 2009 
7292964 
Translating of geometric models into block diagram models 
Nov. 6, 2007 
6941667 
Teaching sin and cosine instrument 
Sep. 13, 2005 
6872078 
Teaching cylinder instrument 
Mar. 29, 2005 
6790118 
Block set for educational purposes 
Sep. 14, 2004 
6652347 
Entertainment device 
Nov. 25, 2003 
6641453 
Construction set for building structures 
Nov. 4, 2003 
6553678 
Austin triangle 
Apr. 29, 2003 
6309716 
Tessellation set 
Oct. 30, 2001 
6241572 
Manipulable beaded string 
Jun. 5, 2001 
6213779 
Conic section activity boards 
Apr. 10, 2001 
6159329 
Selfadhesive graph appliques 
Dec. 12, 2000 
6142785 
Educational set of gloves 
Nov. 7, 2000 
6132217 
Method and apparatus for teaching relationship of trigonometric functions between unit circle and rectangular coordinate system 
Oct. 17, 2000 
6065968 
Toy for forming variable threedimensional design 
May. 23, 2000 
6017220 
Magnetic geometric building system 
Jan. 25, 2000 
6004182 
Temporary structure 
Dec. 21, 1999 
5967788 
Toy device for illustrating mathematics 
Oct. 19, 1999 
5921781 
3dimensional models showing chemical point group symmetry 
Jul. 13, 1999 
5873729 
Mathematical triangle kit and method of use 
Feb. 23, 1999 
5785529 
Connector for modeling kits 
Jul. 28, 1998 
5660387 
Polyhedron puzzle 
Aug. 26, 1997 
5651679 
Virtual polyhedra models 
Jul. 29, 1997 
5639090 
Geoboard with movable pins 
Jun. 17, 1997 
5599188 
Didacticeducational toy for elementary arithmetic operations, reading and writing 
Feb. 4, 1997 
5584699 
Computerized system for teaching geometry proofs 
Dec. 17, 1996 
5433611 
Teaching apparatus and method for visually representing polynomial expressions 
Jul. 18, 1995 
5407356 
Pictorial image transforming manipulativewith multiple channel tracks 
Apr. 18, 1995 
5370538 
Devices for transforming pictorial images in orthogonal dimensions 
Dec. 6, 1994 
5343369 
Light table for teaching geometric principles 
Aug. 30, 1994 
5328374 
Geometry board 
Jul. 12, 1994 
5316483 
Geometric display device and method of demonstrating geometric shapes 
May. 31, 1994 
5281145 
Pictorial image transforming manipulatives 
Jan. 25, 1994 
5249966 
Geometric building block system employing sixteen blocks, eight each of only two tetrahedral shapes, for constructing a regular rhombic dodecahedron 
Oct. 5, 1993 
5219289 
Mathematical teaching aid 
Jun. 15, 1993 
5215467 
Mathematical instruction board and method of use 
Jun. 1, 1993 
5114347 
Mathematical function demonstrator boards 
May. 19, 1992 
5108291 
Supplementary teaching instruments 
Apr. 28, 1992 
5100359 
Toy made of several interconnectable and adaptable units 
Mar. 31, 1992 
RE33785 
Geometric modeling kit and method of making same 
Dec. 31, 1991 
5076793 
Fractal mathematics kit 
Dec. 31, 1991 
5013245 
Information shapes 
May. 7, 1991 
5009625 
Building blocks 
Apr. 23, 1991 
5009602 
Rotational movement training apparatus 
Apr. 23, 1991 


