Van Der Steen; Gerardus H. A. M.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Van Der Steen; Gerardus H. A. M..The latest application filed is for "electric lamp with metal shell".
- Van Der Steen; Gerardus H. A. M. - Eindhoven NL
| Patent | Date |
|---|---|
| Electric lamp with metal shell Grant 6,359,386 - Von Morgen , et al. March 19, 2 | 2002-03-19 |
| Lamp having a lamp vessel made of quartz glass, quartz glass and method of preparing quartz glass Grant 4,361,779 - van der Steen , et al. November 30, 1 | 1982-11-30 |
| Cathode-ray tube face-plate Grant 4,337,410 - Van der Geer , et al. June 29, 1 | 1982-06-29 |
| Method of producing doped quartz glass Grant 4,336,048 - van der Steen , et al. June 22, 1 | 1982-06-22 |
| High pressure discharge lamp with vessel having a UV radiation absorbing portion of quartz glass Grant 4,307,315 - Meulemans , et al. December 22, 1 | 1981-12-22 |
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