Seifert; Horst
Patent Applications and Registrations
Patent applications and USPTO patent grants for Seifert; Horst.The latest application filed is for "tram with gravity driven vehicles and method for controlling the operation of the tram".
- Seifert; Horst - Aichwald DE
- Seifert; Horst - Hamburg DE
| Patent | Date |
|---|---|
| Tram with gravity driven vehicles and method for controlling the operation of the tram App 20060085107 - Hoffmann; Otto ; et al. | 2006-04-20 |
| Electron tube cathode Grant 4,250,429 - Lersmacher , et al. February 10, 1 | 1981-02-10 |
| Electrodes, for example grid-like electrodes for use in electron tubes, and a method for manufacturing same Grant 4,137,477 - Krol , et al. January 30, 1 | 1979-01-30 |
| Method of manufacturing grid electrodes for electron tubes Grant 4,034,031 - Lersmacher , et al. July 5, 1 | 1977-07-05 |
| Dispenser cathode for a grid-controlled electron tube and method of manufacturing same Grant 4,031,425 - Ziegler , et al. June 21, 1 | 1977-06-21 |
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