Liu; Yuan-Kai
Patent Applications and Registrations
Patent applications and USPTO patent grants for Liu; Yuan-Kai.The latest application filed is for "instrument and method for aligning optical collimators".
- Liu; Yuan-Kai - Taichung TW
- Liu; Yuan-Kai - Chang Hua Hsien TW
| Patent | Date |
|---|---|
| Instrument and method for aligning optical collimators Grant 6,798,950 - Chao , et al. September 28, 2 | 2004-09-28 |
| Instrument and method for aligning optical collimators App 20030147587 - Chao, Sheng-Jui ; et al. | 2003-08-07 |
| Basin Grant D469,523 - Liu January 28, 2 | 2003-01-28 |
| Method and device for adjusting eye range by means of displacements of prisms and ocular lenses Grant 6,236,504 - Kao , et al. May 22, 2 | 2001-05-22 |
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