| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 19 | |
| #2 | United States | 4 | |
| #3 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Indexing scheme relating to hinges | |
| #2 | Hinges for doors or windows | |
| #3 | Bolts for doors or windows | |
| #4 | Doors and windows | |
| #5 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hall Frederick William | 5 |
| #2 | Norwood Ronald M | 3 |
| #3 | William Hall Frederick | 3 |
| #4 | Hosker Gerald R | 2 |
| #5 | Pepino Lyle F | 2 |
| #6 | Hassler Paul M | 2 |
| #7 | Hoffman Peter Linden | 1 |
| #8 | Pepino Lyle F C | 1 |
| #9 | Phillips Ellis J G | 1 |
| #10 | Phillips Ellis Jacob George | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2728119A | Door locking mechanism | |
| US2207148A | Door structure | |
| US2156473A | Door operator | |
| US2019851A | Vertically movable door of the type used in freight sheds and roundhouses | |
| GB283413A | Improvements in or relating to supporting devices for overhead tracks | |
| CA549404A | Operating mechanism for canopy-type doors | |
| CA236495A | Door hanger | |
| CA317684A | Canopy door | |
| CA310896A | Overhead sectional door | |
| CA545227A | Overhead trolley conductor and guard therefor | |
| CA331521A | Multiple door compartment | |
| CA273900A | Track support | |
| CA331333A | Vertically operated door | |
| CA358016A | Canopy door | |
| CA384311A | Canopy door | |
| CA376446A | Sliding door | |
| CA434928A | Conveyer | |
| CA268591A | Door bolt | |
| CA553958A | Door locking mechanism | |
| CA563186A | System for automatically operating doors and the like |