Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6442908 | Open web dissymmetric beam construction | John A. Costanza, Daniel Fisher | 2002-09-03 |
| D454403 | Open web dissymmetric beam | John A. Costanza, Daniel Fisher | 2002-03-12 |
| 5704181 | Dissymetric beam construction | Daniel Fisher, John A. Costanza | 1998-01-06 |