| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 8 | |
| #2 | United States | 6 |
| # | Industry | |
|---|---|---|
| #1 | Packaging and shipping | |
| #2 | Machines | |
| #3 | Control | |
| #4 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Winches | |
| #2 | Unspecified technologies | |
| #3 | Systems controlling non-electric variables | |
| #4 | Ships |
| # | Name | Total Patents |
|---|---|---|
| #1 | Johnson Almon A | 14 |
| Publication | Filing date | Title |
|---|---|---|
| US2417166A | Towing winch | |
| US2436752A | Winch for towing and the like | |
| US2412776A | Winch | |
| US2411094A | Winch for towing and the like | |
| US1842526A | Steering machine | |
| US1776118A | Steering machine | |
| CA444915A | Winch | |
| CA450508A | Towing winch | |
| CA444914A | Winch for towing | |
| CA316908A | Steering machine | |
| CA451554A | Winch for towing and the like | |
| CA255085A | Winch | |
| CA356376A | Winch | |
| CA337428A | Steering machine |