Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4975617 | Electric discharge tube | Aart A. Van Gorkum, Leopold C. M. Beirens | 1990-12-04 |
| 4865413 | Arrangement for splicing optical waveguides and method of manufacturing same | Horst Hubner | 1989-09-12 |
| 4741011 | X-ray tube comprising an anode disc which is at least partly made of pyrolytic graphite | Horst Hubner, Hans Lydtin | 1988-04-26 |
| 4685946 | Method for the manufacture of glass bodies | Pierre L. L. M. Derks, Hans Lydtin | 1987-08-11 |
| 4653913 | Heating device for an atomic absorption spectrometer | Paul-Heinz Poque, Klaus Zimmermann | 1987-03-31 |
| 4629320 | Cuvette for the atomic absorption spectrometry | Wilhelmus F. Knippenberg | 1986-12-16 |
| 4579451 | Tubular cuvette for atomic absorption spectrometry | — | 1986-04-01 |
| 4547069 | Tubular cuvette for atomic absorption spectrometry | Wilhelmus F. Knippenberg | 1985-10-15 |
| 4537506 | Atomizer for atomic absorption spectroscopy | Michael P. Wassall, Philip J. Connor | 1985-08-27 |
| 4476163 | Method of making crucibles for flameless atomic absorption spectroscopy | Ludovicus W. J. van Kollenburg | 1984-10-09 |
| 4461019 | Rotary-anode X-ray tube | — | 1984-07-17 |
| 4392238 | Rotary anode for an X-ray tube and method of manufacturing such an anode | Hans Lydtin | 1983-07-05 |
| 4367246 | Methods of manufacturing crucible for flameless atomic absorption spectroscopy | Wilhelmus F. Knippenberg | 1983-01-04 |
| 4367556 | Rotary-anode X-ray tube | Horst Hubner | 1983-01-04 |
| 4353782 | Method of solid-state pyrolysis of organic polymeric substances | — | 1982-10-12 |
| 4352041 | Rotary anodes for X-ray tubes | Horst Hubner, Hans Lydtin, Rolf Wilden | 1982-09-28 |
| 4344012 | Anode disc for a rotary-anode X-ray tube | Horst Hubner, Hans Lydtin, Rolf Wilden | 1982-08-10 |
| 4338358 | Method of producing cuvettes for the flameless atomic absorption spectroscopy | Ludovicus W. J. van Kollenburg, Leonardus C. Bastings, deceased, Friedrich J. de Haan, administrator | 1982-07-06 |
| 4287025 | Device for solid-state pyrolysis of organic polymeric substances | — | 1981-09-01 |
| 4250429 | Electron tube cathode | Hans Lydtin, Horst Seifert, Johannes W. A. Krol | 1981-02-10 |
| 4204769 | Cuvette for flameless atom absorption spectroscopy | Hans Lydtin, Karlheinz Schelhas, Wilhelmus F. Knippenberg | 1980-05-27 |