Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5771878 | Safety knob | Christopher E. Lewis | 1998-06-30 |
| D378045 | Safety knob | Christopher E. Lewis | 1997-02-18 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5771878 | Safety knob | Christopher E. Lewis | 1998-06-30 |
| D378045 | Safety knob | Christopher E. Lewis | 1997-02-18 |