Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8754778 | Energy saving exit sign retrofit lighting system using light emitting diodes | Jeffrey Winton, Andrew Rybarski, Sri Sridharan | 2014-06-17 |
| 5189958 | Plate clamping system for a duplicating machine | Leonard I. Tafel, Siegfried H. Lebherz | 1993-03-02 |