| 74315166 | NETTRAX | EFI ELECTRONICS CORPORATION | 1951657 |
| 75559191 | HOME SHIELD | EFI Electronics Corporation | — |
| 74057575 | HOME GUARD | EFI Electronics Corporation | 1751804 |
| 75390104 | LIGHTNINGTEMP | EFI Electronics Corporation | 2251990 |
| 75359052 | PANEL MASTER | EFI Electronics Corporation | — |
| 75359051 | HOME GUARD | EFI ELECTRONICS CORPORATION | 2225359 |
| 75359050 | HOT SWAPPABLE | EFI Electronics Corporation | — |
| 74679139 | NRS NETWORK RESPONSE SYSTEMS | EFI Electronics Corporation | 2186156 |
| 74654364 | NETWORK RESPONSE CENTER | EFI Electronics Corporation | — |
| 74654324 | NETWORK RESPONSE SERVICE | EFI Electronics Corporation | — |
| 74630900 | NODETRACKER | EFI Electronics Corporation | — |
| 74504029 | NODETRAX | EFI ELECTRONICS CORPORATION | — |
| 74482492 | TITAN LINEMASTER | EFI Electronics Corporation | 1877491 |
| 74435299 | M V | EFI Electronics Corporation | 1844733 |
| 74408422 | TITAN SURGE DEFENDER | EFI Electronics Corporation | 1937453 |
| 74407157 | MASTERSHIELD | EFI ELECTRONICS CORPORATION | 1826612 |
| 74407155 | PROFITRAX | EFI ELECTRONICS CORPORATION | — |
| 74407047 | LAPTRAX | EFI ELECTRONICS CORPORATION | — |
| 74334899 | SERVICETRAX | EFI ELECTRONICS CORPORATION | — |
| 74334897 | LANGARDE | EFI ELECTRONICS CORPORATION | 1804221 |
| 74334895 | COPYTRAX | EFI ELECTRONICS CORPORATION | — |
| 74334876 | FAXTRAX | EFI ELECTRONICS CORPORATION | — |
| 74303279 | TRIPLE CROWN | EFI ELECTRONICS CORPORATION | 1792914 |
| 74174482 | POWERTRAX | EFI ELECTRONICS CORPORATION | — |
| 74084805 | Serial No. 74084805 | EFI ELECTRONICS CORPORATION | 1710881 |
| 74036467 | GARD'E FAX | EFI Electronics Corporation | — |