| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 4 | |
| #2 | Spain | 4 | |
| #3 | Austria | 3 | |
| #4 | Denmark | 2 | |
| #5 | United Kingdom | 2 | |
| #6 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Gearing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Duryea Otho Cromwell | 8 |
| #2 | White Morris Columbus | 5 |
| #3 | Otho Cromwell Duryea | 4 |
| #4 | Morris Columbus White | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US875899A | Double-acting gas or vapor engine. | |
| GB190603915A | Improvements in or relating to Direct-acting Internal Combustion Engines. | |
| GB190603916A | Improvements in or relating to the Fuel- and Lubricant-supply for Internal Combustion Engines. |