| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 11 | |
| #2 | Canada | 4 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines | |
| #3 | Electrical machinery and energy | |
| #4 | Textiles and paper |
| # | Technology | |
|---|---|---|
| #1 | Gearing | |
| #2 | Unspecified technologies | |
| #3 | Unspecified technologies | |
| #4 | Dynamo-electric machines | |
| #5 | Making paper goods | |
| #6 | Clutches and brakes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hensley William T | 15 |
| Publication | Filing date | Title |
|---|---|---|
| US1639505A | Pulley | |
| US1639504A | Pulley | |
| US1639502A | Split pulley | |
| US1639503A | Pulley | |
| US1639501A | Process of making pulleys | |
| US1574481A | Apparatus for and process of making pulley units | |
| US1639500A | Split pulley | |
| US1639499A | Pulley | |
| US1639498A | Pulley | |
| US1563629A | Universal joint | |
| CA117205A | Commutator | |
| US805547A | Armature for electrical machines. | |
| CA259912A | Split pulley | |
| CA254924A | Pulley | |
| CA268020A | Machine for annular laminated bodies |