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Class Information
Number: 434/209
Name: Education and demonstration > Mathematics > Arithmetic > Division or multiplication
Description: Subject matter relating to dividing or multiplying one number by another.










Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8545227 Mathematics game Oct. 1, 2013
8360780 Method and system for creating a multiplication and division puzzle Jan. 29, 2013
8238200 Timepiece with multiplication table display and method of teaching multiplication tables Aug. 7, 2012
7722356 Method and apparatus for the manipulation of fractions using transparencies May. 25, 2010
7645139 Math teaching system Jan. 12, 2010
7537454 Numerical multiplication teaching method May. 26, 2009
7364431 Educational game Apr. 29, 2008
7243919 Card game Jul. 17, 2007
7223102 Rhymes tables math expertise system May. 29, 2007
7097174 Method and device for playing a game using remainder values Aug. 29, 2006
7006786 Computer software and portable memory for an electronic educational toy Feb. 28, 2006
6926530 Game apparatuses and methods for use in teaching the addition and subtraction of positive and negative numbers Aug. 9, 2005
6857876 Math game and method Feb. 22, 2005
6856318 Method of presenting and teaching abstract concepts by animating abstract symbols Feb. 15, 2005
6811402 Method of playing a mathematical game Nov. 2, 2004
6769914 Arithmetic teaching device Aug. 3, 2004
6758675 Base ten primary teaching kit Jul. 6, 2004
6755658 Game apparatuses and methods for use in teaching the addition, subtraction, multiplication, and division of positive and negative numbers Jun. 29, 2004
6755655 Electronic educational toy appliance and a portable memory device therefor Jun. 29, 2004
6729881 Electronic educational toy appliance and a portable memory device therefor May. 4, 2004
6716033 System for teaching mathematics Apr. 6, 2004
6695618 Multiplication game Feb. 24, 2004
6676414 Method and computer program for playing an educational card game that teaches mathematical facts Jan. 13, 2004
6595778 Base ten primary teaching kit Jul. 22, 2003
6579101 Basic mathematics teaching and learning aid Jun. 17, 2003
6447300 Educational card game Sep. 10, 2002
RE37212 Tape measure Jun. 12, 2001
6206701 Mathematical teaching apparatus and method Mar. 27, 2001
6155836 System for teaching mathematics Dec. 5, 2000
6116603 Apparatus and method of playing a math capturing and recapturing game Sep. 12, 2000
6109924 Educational card system Aug. 29, 2000
6089871 Mathematical board game Jul. 18, 2000
6079983 Educational instrument for numbers Jun. 27, 2000
6077079 Dual-teaching-aid game Jun. 20, 2000
6065970 Method of playing an educational mathematical game May. 23, 2000
6062566 Dominos-style mathematical operation game May. 16, 2000
5997305 Flexible planar apparatus Dec. 7, 1999
5989035 Arithmetic teaching device Nov. 23, 1999
5954509 Educational device Sep. 21, 1999
5951299 Method for mathematical representation, manipulation and problem solving, and kit Sep. 14, 1999
5927718 Game apparatus Jul. 27, 1999
5913586 Tape measure Jun. 22, 1999
5893718 Mathematical board game Apr. 13, 1999
5836587 Playing cards for an educational game Nov. 17, 1998
5827066 Methods of teaching mathematics to disabled students Oct. 27, 1998
5820382 Multifilication quizzer Oct. 13, 1998
5782471 Board game apparatus and method of play Jul. 21, 1998
5769639 Multi-educational device Jun. 23, 1998
5759041 Mathematics teaching device Jun. 2, 1998
5743740 Educational word and letter game and method of playing Apr. 28, 1998

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