CHEUNG; Wai
Patent Applications and Registrations
Patent applications and USPTO patent grants for CHEUNG; Wai.The latest application filed is for "two-directional bar code symbol and its encoding & decoding method".
- CHEUNG; Wai - Shenzhen CN
- Cheung; Wai - North Point HK
- Cheung, Wai - Stokesley GB
| Patent | Date |
|---|---|
| Two-directional Bar Code Symbol And Its Encoding & Decoding Method App 20070272755 - CHANG; Zhiguo ; et al. | 2007-11-29 |
| Methods and systems for encoding and decoding data in 2D symbology Grant 7,028,911 - Cheung , et al. April 18, 2 | 2006-04-18 |
| Guiding a scanning device to decode 2D symbols Grant 6,802,450 - Cheung , et al. October 12, 2 | 2004-10-12 |
| Methods and systems for encoding and decoding data in 2D symbology App 20040026510 - Cheung, Wai ; et al. | 2004-02-12 |
| Guiding a scanning device to decode 2D symbols App 20040026511 - Cheung, Wai ; et al. | 2004-02-12 |
| Printing machines App 20020088357 - Cheung, Wai ; et al. | 2002-07-11 |
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