Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10024634 | Ground-based anti-aircraft system and method for operating the system | Thorsten Kempas, Ralf Lange, Michael Masur, Thomas Drexler, Andre Selz +1 more | 2018-07-17 |
| 5777233 | Gas-friction vacuum indicator with a gas-friction sensor rotating about a fixed axis of rotation | Johan K. Fremerey, Klaus Witthauer | 1998-07-07 |
| 5565722 | Magnetic bearing control system | Wolfgang Rubner | 1996-10-15 |
| 4658658 | Coil system for inductive measurement of the velocity of movement of a magnetized body | Johan K. Fremerey | 1987-04-21 |
| 4619144 | Method of and apparatus for gas pressure measurement by the gas-friction principle | Johan K. Fremery, Klaus Witthauer | 1986-10-28 |
| 4395914 | Gas friction vacuum meter and method of making measuring body | Johan K. Fremerey | 1983-08-02 |