| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 54 | |
| #2 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Mechanical elements | |
| #3 | Machines | |
| #4 | Machine tools |
| # | Name | Total Patents |
|---|---|---|
| #1 | Tomkinson Charles C | 38 |
| #2 | Cleve Horatio P Van | 3 |
| #3 | Edward Ogden Ralph | 3 |
| #4 | Marshall Ernest W | 3 |
| #5 | Fisher Joseph K | 2 |
| #6 | Prescott Arthur T | 2 |
| #7 | Joseph Kennedy | 2 |
| #8 | Brenizer Orson W | 2 |
| #9 | Marvin Edward W | 1 |
| #10 | Tassell Arthur R Van | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1694516A | Ferry bridge | |
| US1585132A | Support for ferry bridges | |
| US1600035A | Toggle bolt | |
| US1600034A | Toggle bolt | |
| US1600021A | Mooring device | |
| US1694493A | Toggle bolt | |
| US1698570A | Expansion shield | |
| US1596935A | Door latch | |
| US1606977A | Door mechanism | |
| US1606976A | Door mechanism | |
| US1550762A | Door mechanism | |
| US1598407A | Ground anchor | |
| US1548641A | Expansion shield with interlocking cap | |
| US1516652A | Expansion shield | |
| US1636842A | Expansion shield | |
| US1598385A | Pipe hanger | |
| US1579419A | Pipe hanger | |
| US1698571A | Pipe hanger | |
| US1579418A | Pipe hanger | |
| US1503863A | Clamp |