Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7954284 | Retainer clip for grid simulating muntins | Barent A. Rosskamp, Stephen L. Crandell, William B. Davis, Cory D. Steffek | 2011-06-07 |
| 7950194 | Plastic spacer stock, plastic spacer frame and multi-sheet unit, and method of making same | Barent A. Rosskamp, Stephen L. Crandell, William B. Davis, William R. Siskos, Cory D. Steffek | 2011-05-31 |