Celebrity Inventors
Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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| Number | Title | Issue Date |
| 7645139 | Math teaching system A math teaching system for teaching a student how to solve an equation includes a base panel being mountable to a support surface. A work panel is coupled to an exterior surface of the base panel. The work panel has equation indicia positioned on an outer surface of... | 01/12/2010 |
| 7364431 | Educational game A multiplication game consisting of a perforated game board in which the assemblage of perforations forms a rectangular matrix. In a horizontal row of numerals printed on the rim of the board the numerals increase evenly in value from one end to the other end, and b... | 04/29/2008 |
| 7354272 | Manipulative tile as learning tool An arithmetical manipulative device comprises a plurality of tiles, each tile having an upper surface, a lower surface, a first end and a second end, and a connector member for connecting the first end of one tile to the second end of a neighboring tile. The connect... | 04/08/2008 |
| 7273375 | Teaching aid device and method of teaching A device for instructing mathematics includes a work surface and a plurality of movable elements. Each of the movable elements includes, on a front surface thereof, at least a portion of a visible mathematical symbol (including numeric and nonnumeric symbols) thereo... | 09/25/2007 |
| 7220126 | Educational mathematics game There is shown card game apparatus and method of play for use in educating children in basic mathematical concepts, the apparatus including a six-sided mathematical function indicator, such as a die, used in combination with two sets of cards, the function generator... | 05/22/2007 |
| 7168704 | Interactive game A method and apparatus for amusement and gaming is described. The apparatus includes a board comprising horizontal and vertical disposed lines that enclose a plurality of playing areas, wherein the playing areas are arranged into an equal number (N) of rows and colu... | 01/30/2007 |
| 7104799 | Mathematics teaching tool A mathematics education apparatus comprises a base array. The base array includes a plurality of rows, with each row having ten receiving positions. The mathematics education device further comprises a plurality of number pieces that each correspond to a number, inc... | 09/12/2006 |
| 7097174 | Method and device for playing a game using remainder values The present invention relates to a method of playing a game in which a guess is made of a number value of a remainder. A total point value is determined from game pieces given to a player. A number value of a remainder is determined by dividing the total point value... | 08/29/2006 |
| 7029281 | Educational card game and method of play An entertaining and educational card game utilizing a question and answer format. The game is comprised of a plurality of nonstandard decks of playing cards. Each card has a question and answer which aggregately cover a wide range of subject matter. Players acquire ... | 04/18/2006 |
| 7006786 | Computer software and portable memory for an electronic educational toy Computer software and portable memory for an electronic educational toy designed to stimulate the development of a child's mind using audio feedback, the educational toy including an enclosure enclosing a processor, data storage medium and a speaker and having a sub... | 02/28/2006 |
| 6971649 | Zero-sum tiling game A zero-sum tiling game. A plurality of “domino-like” game pieces include indicia viewable on the top surfaces of the game pieces that correspond to one, or the other, or both of two halves of the game pieces. The indicia forms a binary set. The indicia associate... | 12/06/2005 |
| 6926530 | Game apparatuses and methods for use in teaching the addition and subtraction of positive and negative numbers A game apparatus and a method for assisting in teaching the addition and subtraction of positive and, especially, negative numbers, are based on the Null Theory of Adding and Subtracting Positive and Negative Numbers. The apparatus comprises (a) a plurality of posit... | 08/09/2005 |
| 6857876 | Math game and method A math game and method includes a game board having a plurality of elongated slots therein. Each of the slots defines a row arranged in a plurality of columns. The columns each have a number of rows therein equal to a number of columns provided. A plurality of diffe... | 02/22/2005 |
| 6856318 | Method of presenting and teaching abstract concepts by animating abstract symbols Methods of dynamically presenting transformations of expressions comprising symbols representing abstract concepts are described. Methods are presented of animating these symbols to exhibit the transformations and, optionally, link these animations with the correspo... | 02/15/2005 |
| 6811402 | Method of playing a mathematical game A method of playing a mathematical game to calculate a target value includes generating the target value randomly, generating a plurality of calculating numbers to be used to calculate the target value, and calculating, by a first player, an initial solution that is... | 11/02/2004 |
| 6769914 | Arithmetic teaching device An arithmetic teaching device including a base plate bearing a table with numerical indicia and a cover plate secured atop the base plate. The cover plate is provided with a number of slots configured to permit the numerical indicia in the table to be viewed through... | 08/03/2004 |
| 6758675 | Base ten primary teaching kit A kit containing an Instructor unit sized for presentation to a group and multiple Child training units both set up to allow students to visually model and relate addition, subtraction, multiplication, and division in primary mathematics. The manipulative units incl... | 07/06/2004 |
| 6755658 | Game apparatuses and methods for use in teaching the addition, subtraction, multiplication, and division of positive and negative numbers Game apparatuses and methods for assisting in teaching the addition, subtraction, multiplication, and division of positive and, especially, negative numbers, are based on the Null Theory of Adding, Subtracting, Multiplying, and Dividing Positive and Negative Numbers... | 06/29/2004 |
| 6755655 | Electronic educational toy appliance and a portable memory device therefor An electronic toy appliance for use with interchangeable graspable objects such as blocks or tiles, the toy appliance designed to stimulate the development of a child's mind using audio feedback. ... | 06/29/2004 |
| 6729881 | Electronic educational toy appliance and a portable memory device therefor An electronic toy designed to stimulate the development of a child's mind using audio feedback, the toy comprising an object having a plurality of sides, the object adapted for lateral movement and rotational manipulation by a child on a substantially horizontal sur... | 05/04/2004 |
| 6716033 | System for teaching mathematics A system uses objects that can be combined to learn mathematical operations. Operand objects illustrate a numerical operand and an associated set of possible numerical solutions to operations performed on the operand number. Operator objects illustrate an operation ... | 04/06/2004 |
| 6695618 | Multiplication game A multiplication game teaches and enforces basic multiplication tables for players, while providing an enjoyable and competitive activity for the players. The game includes a game board having a rectilinear matrix of playing positions thereon, with at lea... | 02/24/2004 |
| 6676414 | Method and computer program for playing an educational card game that teaches mathematical facts A method for playing an educational card game uses mathematical question cards and mathematical answer cards. The play proceeds with each player in turn drawing at least one card, determining matches between question cards and answer cards, and posting ma... | 01/13/2004 |
| 6595778 | Base ten primary teaching kit A kit containing an Instructor unit sized for presentation to a group and multiple Child training units both set up to allow students to visually model and relate addition, subtraction, multiplication, and division in prinmry mathematics.... | 07/22/2003 |
| 6579101 | Basic mathematics teaching and learning aid A basic mathematics teaching and learning aid comprises of nine arrays of square spaces placed with powers of 10 from 10-4 to 106, numbers formed by repeated addition of some of those powers of ten, and other numbers. Dot and dash ar... | 06/17/2003 |
| 6447300 | Educational card game An interesting educational game is provided which is fun, appealing, and effective to readily teach children arithmetic. The child-friendly educational game can include a set of playing cards. Each card can have a different graphical representation of one... | 09/10/2002 |
| 6206701 | Mathematical teaching apparatus and method A mathematical teaching apparatus comprising block elements that fit inside a block element container. The block element container will not close until the proper number of block elements are inserted. For teaching counting and addition concepts for a num... | 03/27/2001 |
| 6155836 | System for teaching mathematics A system for teaching mathematics to beginning students includes a series of gloves and/or finger puppets, with the digits representing non-sequential number series (e.g., two, four, six, etc.). Students are taught to count various non-sequential number s... | 12/05/2000 |
| 6116603 | Apparatus and method of playing a math capturing and recapturing game A multiplication capturing and recapturing game system is disclosed. The system comprises 2 equilateral-triangular game boards, a pair of eight-sided dice and 36 playing pieces. The game can be played by 2 to 4 players. Each player throws two dice to begi... | 09/12/2000 |
| 6109924 | Educational card system The invention provides one or more question cards and one or more answer cards, where each answer card corresponds to one or more question cards, and whereby a student is can associate each question card with an answer card, and learn by confirming the ma... | 08/29/2000 |
| 6089871 | Mathematical board game A method and apparatus for teaching mathematical skills to players of all ages includes a game board having 100 spaces printed on a first board side, the spaces numbered from one to ninety-nine and having one logo space. Each space, in addition, has print... | 07/18/2000 |
| 6079983 | Educational instrument for numbers An educational instrument for numbers for providing students with an educational tool that would be fun and challenging. The educational instrument for numbers includes a base member having a top side, a recessed portion in the top side, a first longitudi... | 06/27/2000 |
| 6077079 | Dual-teaching-aid game An educational board game which is used with a conventional deck of playing cards. The game includes a board which has a matrix of spaces in vertical and horizontal rows. Some of the rows are guide rows containing suit and numerical value indicia relating... | 06/20/2000 |
| 6065970 | Method of playing an educational mathematical game A method of playing a game which includes (i) a game board which is divided into a plurality of sections such that each of the sections defines a playing location, (ii) a number disposed on each of the playing locations, (iii) a plurality of cards, and (i... | 05/23/2000 |
| 6062566 | Dominos-style mathematical operation game A dominos-style mathematical operation game is provided including a plurality of dominos each having a top face and a bottom face. The bottom face of each domino has a pair of equally sized sides each with a unique combination of a number indicia and a ma... | 05/16/2000 |
| 5997305 | Flexible planar apparatus A flexible planar apparatus fabricated from polyvinylchloride has a matrix of foldable lines defining a plurality of quadrilateral tiles. Said tiles are configured to convey information, such as a multiplication table using numerals or Braille characters.... | 12/07/1999 |
| 5989035 | Arithmetic teaching device A arithmetic teaching device for teaching a child mathematics. The arithmetic teaching device includes a housing that has a bottom and a peripheral sidewall upwardly extending from the bottom. A counting box has an open upper face and a plurality of compa... | 11/23/1999 |
| 5954509 | Educational device An educational device having a base page, which may be transparent and multiple intervening transparent pages and a structure to hold the multiple intervening transparent layers in registration in which the base layer has a set of problems which are modif... | 09/21/1999 |
| 5951299 | Method for mathematical representation, manipulation and problem solving, and kit The present invention involves the use of numerical digits with markers and attribute tags as a means to represent quantities, facilitate mathematical manipulation, and solve problems. The given number of markers on each digit corresponds to the value of ... | 09/14/1999 |
| 5927718 | Game apparatus A game apparatus utilizing a platform which is divided into a first section, having a first partition to define the same, a second section, having a second partition to define the same, and a third section having a third partition to define the same. The ... | 07/27/1999 |
