| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 13 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines | |
| #3 | Audio-visual technology | |
| #4 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Doors and windows | |
| #2 | Indexing scheme relating to hinges | |
| #3 | Unspecified technologies | |
| #4 | Wing fittings | |
| #5 | Unspecified technologies | |
| #6 | Starting of combustion engines | |
| #7 | Advertising |
| # | Name | Total Patents |
|---|---|---|
| #1 | Collins Thomas E | 13 |
| Publication | Filing date | Title |
|---|---|---|
| US1773346A | Safety signal | |
| US1398317A | Door-closer | |
| US1353219A | Door check and closer | |
| US1344291A | Starter | |
| US1290514A | Automatic fire-shutter. | |
| US1242658A | Fire-shutter. | |
| US1237300A | Fire-door. | |
| US1149732A | Fire-door. | |
| US1029912A | Fire-door. | |
| US1007339A | Fire-door. | |
| US984799A | Fire-door. | |
| US926978A | Fire-door. | |
| US845526A | Flexible metallic shutter. |