Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6966584 | Padlock seal | Robert Debrody, George Lundberg, Richard Dreisbach, Louis Mattos, Jr. | 2005-11-22 |
| 6000736 | Rotatable seal | Jeremy Phelps Leon, Robert J. Finamore, Richard Dreisbach, Louis Mattos, Jr., George Lundberg +1 more | 1999-12-14 |
| 4934747 | Electric meter socket sealing ring | Albert K. Langdon, Louis Mattos, Jr., Michael E. Lewis, Darrell Robinson | 1990-06-19 |
| 4588218 | Security seal | Richard S. Guiler | 1986-05-13 |