| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 5 | |
| #2 | Austria | 1 | |
| #3 | Switzerland | 1 | |
| #4 | Germany | 1 | |
| #5 | Spain | 1 | |
| #6 | France | 1 | |
| #7 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Platform constructions |
| # | Name | Total Patents |
|---|---|---|
| #1 | Robert Foster | 5 |
| #2 | Marker Corporation Metal Traff | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1878691A | Traffic marker | |
| GB291449A | Improvements in marking devices for traffic control on roads and ways | |
| ES107022A1 | Improvements in surface markers. | |
| US1747667A | Traffic marker | |
| US1861425A | Traffic and industrial marker | |
| US1747666A | Surface marker | |
| US1747665A | Surface marker |