Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7357007 | Combination and key operated padlock with device for indicating the lock has been opened by a key | — | 2008-04-15 |
| 7155943 | Combination lock and padlock combination with mechanism for visually indicating key opening permission | — | 2007-01-02 |
| 7155944 | Combination lock and padlock combination with mechanism for visually indicating key opening permission | — | 2007-01-02 |
| 6904776 | Combination lock capable of being opened by a key | — | 2005-06-14 |
| 6848283 | Combination lock capable of being opened by a key or inhibited the same | — | 2005-02-01 |