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Class Information
Number: 434/191
Name: Education and demonstration > Mathematics > Arithmetic
Description: Subject matter relating to computations with real numbers.










Sub-classes under this class:

Class Number Class Name Patents
434/203 Apertured elements threaded on elongate means (e.g., abacus, etc.) 39
434/208 Ball, block, or disk 70
434/192 Chalkboard or equivalent means having readily erasable surface 5
434/207 Color used in teaching means 53
434/209 Division or multiplication 91
434/201 Electric component included in teaching means 91
434/197 Indicia-bearing belt or reel-mounted strip 4
434/202 Keyboard or like manually manipulated array (e.g., slides, levers, etc.) 23
434/195 Manually manipulated elements having size proportional to numeric value 54
434/193 Manually manipulated numeral shaped elements 18
434/200 Manually manipulated pin or peg 23
434/205 Means having number of marks (e.g., dots, etc.) or associated physical units (e.g., sticks, indentations, etc.) corresponding to numeric value 45
434/194 Numeric value represented by weight placed on balance 14
434/210 Place value relative to decimal point 12
434/198 Plaque (e.g., disk, etc.) turnable relative to index (e.g., window in card, etc.) to selectively align different points on plaque therewith 17
434/199 Plaque slidable relative to index (e.g., window in card, etc.) to selectively align different points on plaque therewith 13
434/206 Rotatable wheel-shaped element (e.g., ring, disc, cylinder, etc.) having indicia on perimeter thereof 20


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8672683 Computer-based abacus training system Mar. 18, 2014
8616889 Resuscitation training manikin Dec. 31, 2013
8545227 Mathematics game Oct. 1, 2013
8529266 Mathematical teaching apparatus and methods Sep. 10, 2013
8408910 Active learning device and method Apr. 2, 2013
8371858 Method and electronic calculating device for teaching arithmetic Feb. 12, 2013
8360780 Method and system for creating a multiplication and division puzzle Jan. 29, 2013
8287280 Teaching aid device and method of teaching Oct. 16, 2012
8152529 Computerized system and method for visually based education Apr. 10, 2012
8123527 Active learning device and method Feb. 28, 2012
7722356 Method and apparatus for the manipulation of fractions using transparencies May. 25, 2010
7695283 Visual arithmetic teaching device Apr. 13, 2010
7677895 Arithmetic measurement system Mar. 16, 2010
7549865 Mathematics manipulative board Jun. 23, 2009
7542932 Systems and methods for multi-objective portfolio optimization Jun. 2, 2009
7500852 Teaching aid device and method of teaching Mar. 10, 2009
7491061 Educational math toy Feb. 17, 2009
7413440 Hundreds board device and method Aug. 19, 2008
7354272 Manipulative tile as learning tool Apr. 8, 2008
7338287 Systems and methods for searching for and delivering solutions to specific problems and problem types Mar. 4, 2008
7273375 Teaching aid device and method of teaching Sep. 25, 2007
7223102 Rhymes tables math expertise system May. 29, 2007
7220126 Educational mathematics game May. 22, 2007
7182342 Math board game Feb. 27, 2007
7137819 Apparatus, system, and method for teaching sequencing principles Nov. 21, 2006
7104799 Mathematics teaching tool Sep. 12, 2006
7077654 Visual math teaching method Jul. 18, 2006
7059861 Math manipulative educational learning game Jun. 13, 2006
7052279 Ten-frame subtraction system May. 30, 2006
7040898 Computer software and portable memory for an electronic educational toy May. 9, 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
6755655 Electronic educational toy appliance and a portable memory device therefor Jun. 29, 2004
6755658 Game apparatuses and methods for use in teaching the addition, subtraction, multiplication, and division of positive and negative numbers Jun. 29, 2004
6739874 Electronic educational toy appliance teaching letters words and numbers May. 25, 2004
6739875 Teach-aiding weight set May. 25, 2004
6729881 Electronic educational toy appliance and a portable memory device therefor May. 4, 2004
6726485 Electronic educational toy appliance and a portable memory device therefor Apr. 27, 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
6648648 Instructional mathematics board game Nov. 18, 2003
6595778 Base ten primary teaching kit Jul. 22, 2003
6464503 Method and apparatus for interacting with a computer using a plurality of individual handheld objects Oct. 15, 2002
6413099 Educational device for teaching simple and complex mathematical concepts Jul. 2, 2002
6413100 System and methods for searching for and delivering solutions to specific problems and problem types Jul. 2, 2002

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