| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 22 | |
| #2 | Germany | 5 | |
| #3 | United States | 4 |
| # | Industry | |
|---|---|---|
| #1 | Computer technology | |
| #2 | Textiles and paper | |
| #3 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Mechanically computing digital computers | |
| #2 | Typewriters | |
| #3 | Copy machines | |
| #4 | Wing fittings |
| # | Name | Total Patents |
|---|---|---|
| #1 | Underwood John Thomas | 22 |
| #2 | Knoll George W | 1 |
| #3 | Gumphrecht William L | 1 |
| #4 | Becker Richard M | 1 |
| #5 | Harvey Joseph C | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1101070A | Type-writing machine. | |
| US1169400A | Type-writing machine. | |
| US1107530A | Carriage-return mechanism. | |
| US1104468A | Combined type-writing and computing machine. |