


Class Information
Number: 434/191
Name: Education and demonstration > Mathematics > Arithmetic
Description: Subject matter relating to computations with real numbers.
Subclasses 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 
Indiciabearing belt or reelmounted 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 wheelshaped element (e.g., ring, disc, cylinder, etc.) having indicia on perimeter thereof 
20 
Patents under this class:
Patent Number 
Title Of Patent 
Date Issued 
8672683 
Computerbased 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 multiobjective 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 
Tenframe 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 
Teachaiding 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 


