Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10567533 | System and method to determine the presence status of a registered user on a network | Johannes Schmitt, Jurgen Totzke | 2020-02-18 |
| 9961153 | System and method to determine the presence status of a registered user on a network | Johannes Schmitt, Jurgen Totzke | 2018-05-01 |
| 8868156 | Optical spectroscopy device and method for its manufacture | Hans Koops | 2014-10-21 |
| 8761796 | Spatial arrangement of a plurality of communication devices and method for determining the spatial position of a device | Johannes Schmitt, Matthias Kropff | 2014-06-24 |