Issued Patents All Time
Showing 26–50 of 53 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5366937 | Optical fiber composed of glass doped with laser-active ions of an element from the rare earths | Christian Gerndt, Armin Staudt | 1994-11-22 |
| 5256178 | Method for producing an optical fiber of halide glass, particularly an infrared permeable fiber of heavy metal fluoride glass | Armin Staudt | 1993-10-26 |
| 5226940 | Process for producing optical fibers of high tensile strength | Armin Staudt | 1993-07-13 |
| 5201920 | Method for producing an optical fiber of halide glass, particularly an infrared permeable fiber of fluoride glass | Armin Staudt | 1993-04-13 |
| 4889401 | Birefringent optical waveguide structure having a strip waveguide buried in a cladding layer and the method of manufacturing | Ekkehard Klement, Holger Karstensen, Helmut Zrschizky | 1989-12-26 |
| 4842627 | Method for the manufacture of a preform for drawing glass fibers particularly infrared light waveguides for optical communications technology | Achim Schoberth | 1989-06-27 |
| 4795228 | Fiber taper particularly useful for coupling a monomode fiber to a semiconductor laser | — | 1989-01-03 |
| 4749395 | Process for producing a glass body | — | 1988-06-07 |
| 4748687 | Narrow band laser transmitter | Franz Auracher, Georg Boeck | 1988-05-31 |
| 4747861 | Method for the manufacture of glass by means of deposition from the vapor phase | — | 1988-05-31 |
| 4735644 | Method for manufacturing glass optical fiber preforms | — | 1988-04-05 |
| 4645451 | Gas burner for externally heating glass bodies | Egon Lebetzki, Wolfram Vogt | 1987-02-24 |
| 4639496 | Method for the manufacture of a polymer reacted with FeCl.sub.3 | Gerd Weddigen, Robert Huber, Birgit Schmidt | 1987-01-27 |
| 4631114 | Method for removing a surface layer from a metal fluoride glass | — | 1986-12-23 |
| 4564466 | Method for the manufacture of a polymer | Gerd Weddigen, Robert Huber, Birgit Schmidt | 1986-01-14 |
| 4557561 | Doped glass and process for making | Egon Lebetzki | 1985-12-10 |
| 4547210 | Process for producing a glass body | — | 1985-10-15 |
| 4444463 | Glass fibers with transverse openings and methods of their production | Friedrich Weidinger | 1984-04-24 |
| 4394062 | Splittable fiber optical waveguide and method of manufacture | — | 1983-07-19 |
| 4388095 | Method of producing a glass layer on an interior surface of a hollow body | Egon Lebetzki | 1983-06-14 |
| 4360546 | Electrical discharge lamp envelope | Josef Grabmaier | 1982-11-23 |
| 4345180 | Envelope for metal halide discharge lamp with protective layer containing B.sub.2 O.sub.3 | Josef Grabmaier | 1982-08-17 |
| 4312653 | Process for the production of a coated glass body | Alfred Papp | 1982-01-26 |
| 4302232 | Process for the production of a glass fiber light waveguide | Alfred Papp | 1981-11-24 |
| 4295870 | Process for the production of glass for a glass workpiece for use in drawing a glass light conducting fiber of a low attenuation | Egon Lebetzki | 1981-10-20 |