Johnson; David Wilfred
Patent Applications and Registrations
Patent applications and USPTO patent grants for Johnson; David Wilfred.The latest application filed is for "manufacture of planar waveguides using sol-gel techniques".
- Johnson; David Wilfred - Bedminster NJ
| Patent | Date |
|---|---|
| Manufacture of planar waveguides using sol-gel techniques Grant 7,159,421 - Bhandarkar , et al. January 9, 2 | 2007-01-09 |
| Manufacture of planar waveguides using sol-gel techniques App 20040221619 - Bhandarkar, Suhas ; et al. | 2004-11-11 |
| Isotropic negative thermal expansion ceramics and process for making App 20010031692 - Fleming, Debra Anne ; et al. | 2001-10-18 |
| Isotropic negative thermal expansion cermics and process for making Grant 6,258,743 - Fleming , et al. July 10, 2 | 2001-07-10 |
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