Learning Resources, Inc.
23Patents
9Active
23Granted
39Portfolio score
Filing activity: Sep 13, 1996 → Nov 13, 2019 · 2 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6179682A | Teaching toy telephone | Human Necessities | 33 | Expired |
| US6532314B1 | Talking toy scanner | Physics | 18 | Expired |
| US5851118A | Digital and analog teaching clock | Physics | 17 | Expired |
| USD929837S1 | Toy power drill | General | 11 | Active |
| USD420405S | Teaching toy telephone | General | 11 | Expired |
| USD407423S | Slide viewer | General | 10 | Expired |
| USD531669S1 | Educational device | General | 8 | Expired |
| USD557338S1 | Educational device | General | 8 | Expired |
| US7383635B1 | Multipurpose drawing tool | Performing Operations; Transporting | 7 | Active |
| USD890861S1 | Toy robot | General | 7 | Active |
| US7171757B1 | Folding ruler | Performing Operations; Transporting | 7 | Expired |
| US6086105A | Book for packaging activity pieces in an activity kit | Performing Operations; Transporting | 6 | Expired |
| US7729206B2 | Time interval indicating device | Physics | 6 | Expired |
| US8611192B2 | Elapsed time clock | Physics | 4 | Active |
| US8072846B2 | Time interval indicating device | Physics | 4 | Active |
| US5999339A | Hand-held magnifying device | Physics | 3 | Expired |
| US8526273B2 | Time interval indicating device | Physics | 3 | Active |
| USD400813S | Teaching scale | General | 2 | Expired |
| USD862603S1 | Dice randomizer | General | 1 | Active |
| US8795026B2 | Stick puppet | Performing Operations; Transporting | 1 | Active |
| USD566752S1 | Stamper | General | 1 | Expired |
| US11648485B2 | Toy robot | Human Necessities | 1 | Active |
| US7351062B2 | Educational devices, systems and methods using optical character recognition | Physics | 1 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.