Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7327278 | Method and apparatus for tracing remote ends of networking cables | Ronald Helgerson | 2008-02-05 |
| 6975242 | Method and apparatus for tracking remote ends of networking cables | Ronald Helgerson | 2005-12-13 |
| 6577243 | Method and apparatus for tracing remote ends of networking cables | Ronald Helgerson | 2003-06-10 |
| 5666453 | Fiber optic jumper cables and tracing method using same | — | 1997-09-09 |
| 4286114 | Two-wire resistance bridges for private line circuits | Bill E. Johnson | 1981-08-25 |