| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 11 | |
| #2 | Canada | 3 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Mechanical elements | |
| #3 | Machines | |
| #4 | Measurement | |
| #5 | Medical technology | |
| #6 | Machine tools |
| # | Name | Total Patents |
|---|---|---|
| #1 | Keehn Warner L | 14 |
| Publication | Filing date | Title |
|---|---|---|
| US2851985A | Device for indicating loss or use of gas from a container holding liquified gas | |
| US2408561A | Dual axle trailer | |
| US2432018A | Trailer and swingable axle construction therefor | |
| US2408560A | Plate clamp | |
| US2398532A | Rivet | |
| US2358578A | Plunger type blind rivet | |
| US2362637A | Welder's helmet | |
| US2296470A | Rivet assembly | |
| US2295085A | Land vehicle | |
| US2282137A | Trailer loader | |
| US2295084A | Trailer truck | |
| CA430355A | Plunger type blind rivet | |
| CA441989A | Trailer | |
| CA441988A | Trailer |