Bizarre Patents
Dining Table Having Integral Dishwasher
A space-saving dishwasher, which may be installed within a counter top or table, having a dish-carrying rack that is vertically shiftable through the open top of the dishwasher for facilitating loading and unloading of the dishes.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 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 |
| 7335120 | String tension identification device and method A racquet string tension identification device and method for mounting on a stringed racquet utilizing a color coding system to denote the original string tension range in tens of pounds and having nine indicia areas with the number of additional pounds of tension t... | 02/26/2008 |
| 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 |
| 7080982 | Information display media with concealable portion A flash card or other type display member is disclosed in which one or more display surfaces are provided for displaying a first indicia, preferably educational indicia. A flap is provided on display surface for optionally revealing a second indicia associated with ... | 07/25/2006 |
| 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 |
| 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 |
| 5820382 | Multifilication quizzer A multiplication quizzer that allows a user to learn the multiplication tables. The quizzer includes a base member, at least one first obliquely-forwardly-downwardly-oriented multiplication table disposed on a first side of the base member, at least one s... | 10/13/1998 |
| 5518409 | Sliding digital bookmarker A bookmarker comprises a thin, planar base member. A thin, planar upper member has the shape of the base member with the perimeter edges of the upper member being permanently adhered to corresponding perimeter edges of the base member. At least two elonga... | 05/21/1996 |
| 5407356 | Pictorial image transforming manipulative-with multiple channel tracks A visual aid teaching device for translating one or more superimposed picture images in a linear path at different positions with respect to a stationary underlay picture includes as basic components: a pair of edge strip members, each embodying two or mo... | 04/18/1995 |
| 5277587 | Learning toy A learning device including a holder having a storage area and a display area. Information cards including a problem and a coded solution are selectively introduced into the display area wherein the problem remains visible and the coded answer is viewed t... | 01/11/1994 |
| 4915634 | Visual and manipulative teaching aid for mathematics A teaching aid includes a plurality of lenses arranged in an array and mounted within a frame member. A slide channel is disposed along the edges of the frame and is imprinted along one edge with numbers from one to ten. A panel having an index mark is sl... | 04/10/1990 |
| 4856998 | Teaching aids An improved teaching aid including a plurality of parts, each of the parts having arithmetic indicia printed thereon, the parts being operatively coupled and relatively moveable with respect to each other to vary the location of the arithmetic indicia of ... | 08/15/1989 |
| 4372742 | Arithmetical teaching aid An arithmetical teaching aid includes a display board B comprising a rectangular array of display areas A arranged in rows R and columns C. Adjacent display areas A are marked (1, 10, 100 etc.) to represent successive powers of an arithmetic base number s... | 02/08/1983 |
| 4241522 | Teaching aid A teaching aid procreated to develop learner participation in mental computation of number combinations involving all of the elements of basic arithmetic. Four elongated slide members are permanently housed within the confines of a frame member. Each slid... | 12/30/1980 |
| 4185401 | Arithmetic game board An educational game board for teaching arithmetic. The game board has a group of holes in a grid arrangement with a first group of slides beneath and parallel to the holes in one direction, and a second group of slides beneath the first group of slides an... | 01/29/1980 |
