Handspring, Inc.
🏢 View company profile →15Patents
0Active
15Granted
32Portfolio score
Filing activity: Aug 12, 1999 → Aug 4, 2004
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6442637B1 | Expandable mobile computer system | Physics | 348 | Expired |
| US6516202B1 | Mobile computer system designed for wireless communication expansion | Electricity | 240 | Expired |
| US6781575B1 | Method and apparatus for organizing addressing elements | Electricity | 223 | Expired |
| US6757862B1 | Method and apparatus for digital data error correction coding | Physics | 174 | Expired |
| USD467235S1 | Hand-held device with handwriting area | General | 64 | Expired |
| US6950988B1 | Multi-context iterative directory filter | Emerging Cross-Sectional Technologies | 53 | Expired |
| USD466877S1 | Hand-held device with keyboard | General | 49 | Expired |
| USD466115S1 | Personal digital assistant | General | 48 | Expired |
| US6539476B1 | Mobile computer system capable for copying set-up application including removal routine from peripheral device for removing device programs after the device is removed | Physics | 46 | Expired |
| US6975304B1 | Interface for processing of an alternate symbol in a computer device | Physics | 36 | Expired |
| USD457162S1 | Cradle for personal digital assistant | General | 26 | Expired |
| US6744451B1 | Method and apparatus for aliased item selection from a list of items | Physics | 21 | Expired |
| USD457526S1 | Chip for personal digital assistant | General | 12 | Expired |
| USD514571S1 | Keyboard for handheld device | General | 8 | Expired |
| USD466502S1 | Flip door for personal digital assistant | General | 7 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.