| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 9 | |
| #2 | Canada | 5 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Mechanical elements | |
| #3 | Furniture and games | |
| #4 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Nails | |
| #3 | Office furniture | |
| #4 | Structural elements | |
| #5 | General building constructions | |
| #6 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Attwood Warren R | 14 |
| Publication | Filing date | Title |
|---|---|---|
| US3255797A | Structural assemblies | |
| US3295873A | Fastener elements | |
| US3221847A | Structural connections | |
| US3097822A | Shelf bracket and clips | |
| US3247634A | Structural assembly | |
| US3075622A | Structural connector | |
| US3284971A | Structural elements for metal framing systems | |
| US3043408A | Metallic framing element | |
| US3094197A | Building construction element | |
| CA733837A | Shelf bracket and clips | |
| CA689950A | Structural connector | |
| CA664554A | Means for locking slotted members | |
| CA666234A | Nuts | |
| CA623429A | Structural material |