| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 22 | |
| #2 | Canada | 6 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines | |
| #3 | Furniture and games | |
| #4 | Mechanical elements | |
| #5 | Consumer goods |
| # | Name | Total Patents |
|---|---|---|
| #1 | Benson Fritz C | 8 |
| #2 | Gotthard Hagstrom | 6 |
| #3 | Hendrick Hobart J | 3 |
| #4 | Morse Jr John B | 2 |
| #5 | Morse John B | 2 |
| #6 | Youngberg Walter | 1 |
| #7 | Wright Louis W | 1 |
| #8 | Walter Youngberg | 1 |
| #9 | Wilson Alfred C | 1 |
| #10 | Keeler Dwight H | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3389854A | Letterbox plate | |
| US3135542A | Window sash fastener | |
| US3174179A | Door stop | |
| US3055690A | Magnetic door latch | |
| US3050770A | Wall bumper | |
| US3036849A | Quadrant latch for dutch doors | |
| US3036329A | Door closers | |
| US2832590A | Casement window operators | |
| US2920854A | Coat and hat hooks | |
| US2747538A | Door knocker | |
| US2772107A | Latch mechanism | |
| US2620213A | Surface bolt | |
| US2595535A | Slotted letter box plate and cover therefor | |
| US2390984A | Latch for screen doors and the like | |
| US2366613A | Casement window operator | |
| US2233078A | Latch for screen doors or the like | |
| US2222293A | Window or door fastener | |
| US2236174A | Window or door catch | |
| US2241513A | Casement window operator | |
| US2219362A | Casement window operator |