| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 8 | |
| #2 | Canada | 3 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Structural elements | |
| #2 | Finishing work on buildings | |
| #3 | General building constructions | |
| #4 | Construction of bridges |
| # | Name | Total Patents |
|---|---|---|
| #1 | Bunker Herbert H | 11 |
| Publication | Filing date | Title |
|---|---|---|
| US2360933A | Floor structure | |
| US2123931A | Load supporting structure | |
| US2103765A | Slab | |
| US2112949A | Slab | |
| US1929478A | Floor slab | |
| US1876042A | Floor unit | |
| US1698429A | Grating | |
| US1613604A | Stair-tread carrier | |
| CA346281A | Floor unit | |
| CA385156A | Road slab | |
| CA346775A | Floor slab |