Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4719186 | Optical and ophthalmic glass with refractive indices greater than or equal to 1.56, Abbe numbers greater than or equal to 40 and densities less than or equal to 2.70 g/cm.sup.3 | Karl Mennemann, Georg Gliemeroth, Ludwig Ross, Burkhard Speit, Volkmar Geiler +1 more | 1988-01-12 |
| 4562161 | Optical and ophthalmic glass with refractive indices greater than or equal to 1.56, Abbe numbers greater than or equal to 40 and densities less than or equal to 2.70 g/cm.sup.3 | Karl Mennemann, Georg Gliemeroth, Ludwig Ross, Burkhard Speit, Volkmar Geiler +1 more | 1985-12-31 |
| 4508834 | Spectacle glass with increased refractive index | Georg Gliemeroth, Ludwig Ross, Burkhard Speit, Volkmar Geiler, Hans-Georg Krolla | 1985-04-02 |
| 4243299 | Optical fibers for communication transmission having high stability to nuclear radiation | Georg Gliemeroth, Peter Heinemann | 1981-01-06 |
| 4199335 | Process for the production of optical fibers for transmission of communication | Georg Gliemeroth | 1980-04-22 |
| 4188089 | Optical fibers having high infrared transmittancy | Georg Gliemeroth | 1980-02-12 |