Issued Patents All Time
Showing 26–40 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8115426 | Method and apparatus for connecting a photovoltaic system to a power grid | Thomas Neussner, Constantin Wenzlik | 2012-02-14 |
| 7609019 | Photovoltaic system and method for operating a photovoltaic system | Thomas Neussner, Constantin Wenzlik | 2009-10-27 |
| 6926814 | Automatable measuring, cleaning and calibration device for pH-electrodes or electrodes for measuring redox potentials | Ralf Koenemann, Detlev Wittmer | 2005-08-09 |
| 6840266 | Interchangeable fitting | Detlef Exner | 2005-01-11 |
| 6800964 | Plural configurable DC sources to provide optimal power to plural configurable inverters | — | 2004-10-05 |
| 5971786 | Liquid-proof plug connector | — | 1999-10-26 |
| 5799608 | Automatic feeding apparatus, particularly for an aquarium | — | 1998-09-01 |
| 4388275 | Apparatus containing a carrier matrix for catalysts | Gerhard Fratzer, Erwin Dold, Hans Klebe | 1983-06-14 |
| 4385031 | Catalytic waste gas converter for combustion machines | Gerhard Fratzer | 1983-05-24 |
| 4385032 | Catalytic waste gas converter for combustion machines | Gerhard Fratzer | 1983-05-24 |
| 4383974 | Catalytic waste gas converter for combustion machines | Gerhard Fratzer | 1983-05-17 |
| 4383975 | Catalytic waste gas converter for combustion machines | Gerhard Fratzer | 1983-05-17 |
| 4374803 | Catalytic waste gas converter for combustion machines | Gerhard Fratzer | 1983-02-22 |
| 4287097 | Carrier matrix for catalysts and a process for the production of same | Gerhard Fratzer, Erwin Dold, Hans Klebe | 1981-09-01 |
| 4271044 | Carrier matrix for catalysts and process for its production | Gerhard Fratzer, Erwin Dold, Hans Klebe | 1981-06-02 |