| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 7 | |
| #2 | Canada | 5 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Environmental technology |
| # | Name | Total Patents |
|---|---|---|
| #1 | Klimek David J | 6 |
| #2 | Wright Thomas | 2 |
| #3 | Weisner Kent A | 2 |
| #4 | Palmer Douglas J | 2 |
| #5 | Palmer Douglas | 1 |
| #6 | Douglas J Palmer | 1 |
| #7 | Walls Lester L Jr | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US5653073A | Fenestration and insulating construction | |
| US5509234A | Window operator assembly | |
| US5515652A | Double hung window | |
| US5553420A | Casement window | |
| US4986039A | Operating-vent glass-glazed standing-seam skylight | |
| US4982530A | Extruded core sections for wood fenestration mounting frames and sashes | |
| CA1264519A | Standing seam roof skylight |