| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 8 | |
| #2 | Austria | 3 | |
| #3 | Denmark | 2 | |
| #4 | Switzerland | 1 | |
| #5 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Machines | |
| #3 | Civil engineering | |
| #4 | Medical technology |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Finishing work on buildings | |
| #3 | Punching metal | |
| #4 | Implantable devices | |
| #5 | Tools for connecting or disengaging | |
| #6 | Cutting |
| # | Name | Total Patents |
|---|---|---|
| #1 | Huestis Frederick William | 2 |
| #2 | Huestis Frederick W | 2 |
| #3 | Hutchins George F | 2 |
| #4 | Ormes William R | 1 |
| #5 | Oliver Charles E | 1 |
| #6 | Losey John Benjamin | 1 |
| #7 | Tread Company Universal Safety | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1340243A | Stair-tread | |
| US1288663A | Machine for making stair-treads and the like. | |
| US733967A | Bending-machine and die therefor. | |
| US730019A | Rolling-machine for forming lips on treads, &c. | |
| US659815A | Method of making non-slipping treads, paving, &c. | |
| US688736A | Machine for making non-slipping treads, pavements, &c. | |
| US743164A | Stair-tread, &c. | |
| US638666A | Tread for stairs, & c. |