| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 29 | |
| #2 | Canada | 8 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Civil engineering | |
| #3 | Packaging and shipping | |
| #4 | Machines | |
| #5 | Electrical machinery and energy |
| # | Name | Total Patents |
|---|---|---|
| #1 | Tomkinson Charles C | 19 |
| #2 | Ogden Ralph E | 5 |
| #3 | Smith Ezra B | 5 |
| #4 | Kennedy Joseph | 4 |
| #5 | Edward Ogden Ralph | 3 |
| #6 | Joseph Kennedy | 2 |
| #7 | Mcintosh Roy E | 2 |
| #8 | Fisher Joseph K | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1692218A | Clamp | |
| US1654340A | Clamp | |
| US1695303A | Anchor | |
| US1694494A | Toggle bolt | |
| US1669014A | Expansion shield | |
| US1563456A | Power-operated door-closure mechanism | |
| US1600018A | Automatically-operable door-lock mechanism | |
| US1600020A | Ground anchor | |
| US1654346A | Bolt anchor | |
| US1567546A | Door | |
| US1646460A | Control mechanism for doors | |
| US1482949A | Control mechanism for doors | |
| US1526807A | Elevator-car-control mechanism | |
| US1650958A | Bolt anchor | |
| US1650957A | Bolt anchor | |
| US1636831A | Setting tool for expansion shields | |
| US1582358A | Pipe hanger | |
| US1646431A | Bolt anchor | |
| US1702920A | Expansion shield | |
| US1487290A | Bolt anchor |