| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 13 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines | |
| #3 | Telecommunications | |
| #4 | Materials and metallurgy |
| # | Technology | |
|---|---|---|
| #1 | Machines for making railways | |
| #2 | Swimming pools | |
| #3 | Unspecified technologies | |
| #4 | Building materials | |
| #5 | Structural elements | |
| #6 | Antennas | |
| #7 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Harry Etheridge | 13 |
| Publication | Filing date | Title |
|---|---|---|
| US2755469A | Radio antenna | |
| US2037315A | Railway rail support | |
| US2037219A | Railway rail support | |
| US2004369A | Railway track structure | |
| US1913707A | Concrete construction | |
| US1785251A | Support for railway rails | |
| US1660605A | Railway-track construction | |
| US1660604A | Railway-track construction | |
| US1586617A | Means for fastening railway rails to their supports | |
| US1615327A | Railway-rail support | |
| US1545089A | Supplemental rail tread | |
| US1584919A | Pole | |
| US1572131A | Railway-track construction |