Issued Patents All Time
Showing 51–60 of 60 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5789075 | Aerogel composites, process for producing the same and their use | Dierk Frank | 1998-08-04 |
| 5786059 | Fiber web/aerogel composite material comprising bicomponent fibers, production thereof and use thereof | Dierk Frank, Franz Thonnessen | 1998-07-28 |
| 5759506 | Process for preparing aerogels | Rolf Jansen | 1998-06-02 |
| 5705535 | Method for the subcritical drying of aerogels | Rolf Jansen, Birgit Kessler, Johann Wonner | 1998-01-06 |
| 5680713 | Process for the subcritical drying of aerogels | Rainald Forbert, Douglas M. Smith, William C. Ackerman | 1997-10-28 |
| 5647962 | Process for the preparation of xerogels | Rolf Jansen | 1997-07-15 |
| 5570003 | Switching device with a feeding circuit for DC power supply to a subscriber's terminal unit | — | 1996-10-29 |
| 5442536 | Low-loss power supply device comprising a DC/DC converter | — | 1995-08-15 |
| 4298448 | Electrophoretic display | Klaus Müller | 1981-11-03 |
| 4187160 | Method and apparatus for operating an electrophoretic indicating element | — | 1980-02-05 |