Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1009082 | Metering pump | Raphael Lichtnecker, Horst Kelsch | 2023-12-26 |
| 9787650 | System and method for multiparty billing of network services | Tet Hin Yeap | 2017-10-10 |
| 8646049 | Systems and methods for secure management of presence information for communication services | Tet Hin Yeap | 2014-02-04 |
| 8538028 | System and method for secure electronic communication services | Tet Hin Yeap | 2013-09-17 |