| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 38 | |
| #2 | Switzerland | 1 | |
| #3 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines | |
| #3 | Electrical machinery and energy | |
| #4 | Environmental technology |
| # | Name | Total Patents |
|---|---|---|
| #1 | Alexander Earl C | 8 |
| #2 | Huntoon John S | 7 |
| #3 | Hobson John S | 5 |
| #4 | Paul Kircher | 5 |
| #5 | Horsch Walter H | 4 |
| #6 | Charles Gilman | 3 |
| #7 | Lyle Mcdaniel William | 3 |
| #8 | Hanna David B | 2 |
| #9 | Gruenfeld Jr Julius J | 2 |
| #10 | Robertson Walter H | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2197960A | Cribbing | |
| US2123016A | Cribbing | |
| US2067037A | Crossing slab | |
| US2065507A | Concrete pile | |
| US2017336A | Concrete slab | |
| US1979548A | Electric vibrator | |
| US1948707A | Apparatus and method for installing pipe | |
| US1948733A | Apparatus for installing and guiding pipe or the like | |
| US2032934A | Electric vibrator | |
| US1909539A | Cribbing | |
| US1871488A | Cribbing | |
| US1871439A | Cribbing | |
| US2054253A | Vibrator and method of treating concrete | |
| US1832803A | Crossing slab | |
| US1932520A | Method and apparatus for treatment of concrete and the like | |
| US1851959A | Cribbing | |
| US1819026A | Cribbing | |
| US1824990A | Cribbing | |
| US1787200A | Cribbing | |
| US1707224A | Cribbing |