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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.










Sub-classes under this class:

Class Number Class Name Patents
434/216 Demonstration means using filament (e.g., string, etc.) to define geometric shape 9
434/215 Demonstration means using relatively turnable elements 15
434/214 Property of circle or ellipse 12
434/213 Property of sphere or spheroid 5
434/212 Pythagorean theorem 6


Patents under this class:
1 2

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 multi-objective 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 Self-adhesive 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 three-dimensional 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 3-dimensional 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 Didactic-educational 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 manipulative-with 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

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