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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.) |
34 |
| 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 |
86 |
| 434/201 |
Electric component included in teaching means |
88 |
| 434/197 |
Indicia-bearing belt or reel-mounted strip |
3 |
| 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 |
50 |
| 434/193 |
Manually manipulated numeral shaped elements |
17 |
| 434/200 |
Manually manipulated pin or peg |
22 |
| 434/205 |
Means having number of marks (e.g., dots, etc.) or associated physical units (e.g., sticks, indentations, etc.) corresponding to numeric value |
42 |
| 434/194 |
Numeric value represented by weight placed on balance |
14 |
| 434/210 |
Place value relative to decimal point |
11 |
| 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 |
16 |
| 434/199 |
Plaque slidable relative to index (e.g., window in card, etc.) to selectively align different points on plaque therewith |
11 |
| 434/206 |
Rotatable wheel-shaped element (e.g., ring, disc, cylinder, etc.) having indicia on perimeter thereof |
17 |
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 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 |
| 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 |
| 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 |
| 6386880 |
Numerical problem solving game |
May. 14, 2002 |
| 6341779 |
Mathematical card and dice game |
Jan. 29, 2002 |
| 6206372 |
Magic squares game |
Mar. 27, 2001 |
| 6196847 |
Educational mathematical apparatus |
Mar. 6, 2001 |
| 6155836 |
System for teaching mathematics |
Dec. 5, 2000 |
| 6132216 |
Childs counting book |
Oct. 17, 2000 |
| 6109924 |
Educational card system |
Aug. 29, 2000 |
| 6079983 |
Educational instrument for numbers |
Jun. 27, 2000 |
| 6077079 |
Dual-teaching-aid game |
Jun. 20, 2000 |
| 6062864 |
Math skills game |
May. 16, 2000 |
| 6056553 |
Apparatus for math teaching and self-learning |
May. 2, 2000 |
| 5997305 |
Flexible planar apparatus |
Dec. 7, 1999 |
| 5989035 |
Arithmetic teaching device |
Nov. 23, 1999 |
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