Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5889844 | Conferencing method for telephone switch system | Dae-sik Kim, Yong Hou | 1999-03-30 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5889844 | Conferencing method for telephone switch system | Dae-sik Kim, Yong Hou | 1999-03-30 |