Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6856739 | Optical fiber for resisting hydrogen-induced loss | Ying Zhang, Alexander Yusim | 2005-02-15 |
| 6604388 | Solid state glass constituent delivery system | Ying Zhang, Ray F. Robinson | 2003-08-12 |
| 6532774 | Method of providing a high level of rare earth concentrations in glass fiber preforms | Ying Zhang, Ray F. Robinson | 2003-03-18 |
| 6523369 | Method of forming an optical fiber | Ying Zhang, Ray F. Robinson | 2003-02-25 |
| 6510710 | Multi-tube delivery system | Ying Zhang, Ray F. Robinson | 2003-01-28 |
| 6490889 | Method of forming a glass preform | Ying Zhang, Ray F. Robinson | 2002-12-10 |
| 6192713 | Apparatus for the manufacture of glass preforms | Ying Zhang, Ray F. Robinson | 2001-02-27 |