Issued Patents 2016
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D751428 | Torpedo level | Robert A. Johnson, William G. Johnson, Timothy J. Wojciechowski, Glenn Walters | 2016-03-15 |
| D751429 | I-beam level | Robert A. Johnson, William G. Johnson, Timothy J. Wojciechowski, Glenn Walters | 2016-03-15 |
| D751430 | Box beam level | Robert A. Johnson, William G. Johnson, Timothy J. Wojciechowski, Glenn Walters | 2016-03-15 |
| D750511 | Box beam level | Timothy J. Wojciechowski, William G. Johnson, Robert A. Johnson | 2016-03-01 |