| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 7 | |
| #2 | Canada | 5 | |
| #3 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Mechanical elements | |
| #3 | Machines | |
| #4 | Engines, pumps and turbines | |
| #5 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Vehicle suspension arrangements | |
| #2 | Springs | |
| #3 | Unspecified technologies | |
| #4 | Aeroplanes | |
| #5 | Pumps | |
| #6 | Venting or aerating devices | |
| #7 | General building constructions |
| # | Name | Total Patents |
|---|---|---|
| #1 | Cowles Irving | 13 |
| #2 | Macdowell Ernest H | 3 |
| #3 | Macdowell Ernest Hudson | 1 |
| #4 | Gifford Robert L | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CA165291A | Valve mechanism | |
| CA139091A | Heating apparatus | |
| CA138784A | Locomotive boiler | |
| GB191119745A | Improvements in Cushioning Devices for Vehicle Bodies. | |
| US1069604A | Automatic valve-actuating means. | |
| US1002823A | Pneumatic cushioning means. | |
| US993509A | Circulation-maintaining means for water-supply systems. | |
| US1002822A | Pneumatic cushioning device. | |
| US960625A | Anchor-socket. | |
| US1002821A | Pneumatic spring device. | |
| US891328A | Vehicle. | |
| CA365300A | Lubricating apparatus | |
| CA368571A | Flexible conduit |