| Patents for G09B 1 - Manually- or mechanically-operated educational appliances using elements forming or bearing symbols, signs, pictures, or the like which are arranged or adapted to be arranged in one or more particular ways (2,411) |
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| 11/25/1998 | CN2298566Y Appliance for child counting |
| 11/25/1998 | CN2298565Y Climate type image denmostration teaching aid |
| 11/17/1998 | US5836587 Playing cards for an educational game |
| 11/11/1998 | CN2297009Y Multipurpose teaching aid |
| 11/10/1998 | US5833465 Alpha-blox |
| 11/05/1998 | WO1998049015A1 Magnetic manipulatives book |
| 10/20/1998 | US5823782 Character recognition educational system |
| 10/14/1998 | CN2294497Y Disposable anti-fake device for telecommunication decipher |
| 10/13/1998 | US5820383 Magnetic manipulatives book |
| 10/13/1998 | US5820381 Teaching apparatus and method for visually representing mathematical expressions |
| 09/29/1998 | US5813861 Talking phonics interactive learning device |
| 09/22/1998 | US5811705 Learning apparatus |
| 09/16/1998 | CN2291691Y English word spelling device |
| 09/08/1998 | US5803743 Alphabet block books |
| 09/01/1998 | US5800182 Fabric chart kit |
| 09/01/1998 | US5800176 Teaching aid for preparing a person to read |
| 08/26/1998 | CN2289276Y Chinese phonetic alphabet learning device |
| 08/25/1998 | US5797601 User selective solution system and method for flashcards, puzzles, and the like |
| 08/18/1998 | US5795163 Educational device to teach the severely mentally handicapped |
| 08/18/1998 | US5794980 Folding apparatus |
| 08/12/1998 | CN2287738Y 教学玩具 Educational toys |
| 08/06/1998 | DE19720140A1 Informal learning game, especially for small children |
| 08/04/1998 | US5788503 Educational device for learning to read and pronounce |
| 08/04/1998 | US5788502 Method of language instruction and fact recognition |
| 07/28/1998 | US5785530 Method and apparatus for visually depicting in three dimensions a health care treatment regimen for a given medical diagnosis |
| 07/22/1998 | CN2286528Y Electronic photograph album |
| 07/22/1998 | CN1188268A Method for assessing oxidative stress and its control in humans |
| 07/21/1998 | US5782640 Language translation note pad |
| 07/08/1998 | CN2285922Y Double side magnetic teaching aid case |
| 06/23/1998 | US5769639 Multi-educational device |
| 06/17/1998 | CN2284430Y Spelling device for English word and International Phonetic Symbols |
| 06/17/1998 | CN2284429Y Numeral, spelling learning device |
| 06/10/1998 | CN2283896Y English learning disk |
| 06/03/1998 | EP0845732A2 Method for assessing oxidative stress and its control in humans |
| 05/29/1998 | CA2222828A1 Method for assessing oxidative stress and its control in humans |
| 05/28/1998 | WO1998022925A1 Mathematical teaching apparatus and method |
| 05/27/1998 | CN2282710Y Chinese character combination arrangement learning board |
| 05/27/1998 | CN2282709Y Screen adsorbable on steel blackboard |
| 05/27/1998 | CN2282708Y Mathematics picture arrangement apparatus |
| 05/20/1998 | CN2282229Y Multifunctional Chinese character pattern pegboard |
| 05/13/1998 | CN1181526A Table for assessing vitamin mineral profile and method for assessing vitamin mineral profile |
| 05/12/1998 | US5749734 Mathematical teaching apparatus |
| 05/06/1998 | EP0840127A1 Table and method for assessing vitamin mineral profile |
| 04/29/1998 | CN1180440A Set of construction pieces for didactic-educative games |
| 04/22/1998 | EP0837435A1 Set of construction pieces for didactic-educative games |
| 04/22/1998 | CN1179584A Method for learning to read by combining Chinese character spelling boards |
| 04/15/1998 | CN2278978Y Phonetic disc |
| 04/14/1998 | US5738524 Multi-function teaching game box |
| 04/14/1998 | US5738523 Written composition teaching methods and aids therefor |
| 04/08/1998 | CN2278249Y Teaching aid for studying molecular formula |
| 04/07/1998 | CA2009321C Business education model |
| 03/31/1998 | US5733128 Language learning aid and method |
| 03/17/1998 | US5727946 Multicolored tutorial stampers |
| 02/24/1998 | US5720617 Educational toy |
| 02/17/1998 | US5718589 Learning enhancing system, and method of teaching |
| 02/10/1998 | US5716212 Teaching aid |
| 02/04/1998 | CN2273882Y Chinese character spelling cards |
| 01/14/1998 | CN2272597Y Demonstration apparatus for classroom teaching |
| 01/13/1998 | US5707238 Number and math education system |
| 01/08/1998 | WO1998000822A1 Educational device for teaching simple and complex mathematical concepts |
| 01/08/1998 | CA2260098A1 Educational device for teaching simple and complex mathematical concepts |
| 01/06/1998 | US5704790 Methods of playing games which enhance mathematical understanding |
| 12/17/1997 | CN2271004Y Multifunctional card support |
| 12/03/1997 | CN2269619Y Rolling-up type writing and demonstrating board |
| 12/03/1997 | CN1166660A Spelling turntable |
| 11/26/1997 | CN2268960Y Instrument for learning to pronunce syllables |
| 11/12/1997 | CN2267495Y Word spelling disc |
| 11/05/1997 | CN2266758Y Zhouyi four-column forecasting rotary disk |
| 11/05/1997 | CN2266757Y Learning device for Chinese phonetic alphabet |
| 11/04/1997 | US5683252 Multi-functional game and learning device |
| 10/29/1997 | CN2266167Y Mendeleev's law demonstrating disc |
| 10/22/1997 | CN2265563Y Magnetic suction type demonstration board for teaching |
| 09/24/1997 | CN2263380Y Picture puzzle |
| 09/17/1997 | CN2262728Y Turning combined card for learning Chinese phonetic alphabet |
| 09/17/1997 | CN1159634A Text-book with lesson-preparing pages |
| 09/10/1997 | CN2262269Y Multipurpose auxiliary memory unit |
| 09/03/1997 | CN2261657Y Multifunctional intellectual inserting board |
| 08/20/1997 | CN2260355Y Quick looking-up disc |
| 08/13/1997 | CN2259657Y Attachable moving pictures education demonstration screen |
| 08/06/1997 | CN2259007Y Chinese character reader |
| 08/06/1997 | CN1156511A Remote control for remotely controlling interactive media |
| 08/05/1997 | US5653594 Educational toy for learning multiplication |
| 08/05/1997 | US5653593 Spaceballs |
| 07/30/1997 | CN2258395Y Acupoint detecting clock |
| 07/29/1997 | US5651678 Educational reading aid and method for using same |
| 07/16/1997 | CN2257943Y Chinese spelling teaching board |
| 07/09/1997 | CN1153957A Chinese character, word and phoneticizing learning index dial card for pupil |
| 07/08/1997 | US5645431 In a metal oxide semiconductor field effect transistor device |
| 07/02/1997 | EP0746832A4 Talking phonics interactive learning device |
| 06/18/1997 | CN2256565Y Arithmetic demonstrating and practising device |
| 06/17/1997 | US5639240 Interactive book assembly |
| 06/04/1997 | CN2255641Y Cubic-block arranging rack |
| 06/03/1997 | US5634796 In a crib |
| 06/03/1997 | US5634641 Play device to match up data or designs |
| 05/29/1997 | WO1997019433A1 Learning enhancing article, system, and method of teaching |
| 05/15/1997 | WO1997017687A1 Set of construction pieces for didactic-educative games |
| 05/15/1997 | CA2209491A1 Set of building parts for didactic-educational toys |
| 05/07/1997 | CN2253853Y Words memory aid |
| 05/06/1997 | US5626477 Education system |
| 05/06/1997 | CA2084112C Educational apparatus with interchangeable task assigning template |