| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 9 | |
| #2 | Canada | 2 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Engines, pumps and turbines | |
| #3 | Electrical machinery and energy | |
| #4 | Environmental technology | |
| #5 | Furniture and games |
| # | Name | Total Patents |
|---|---|---|
| #1 | Mcmahan Kenton D | 11 |
| Publication | Filing date | Title |
|---|---|---|
| US3213797A | Centrifugal pumps | |
| US3243102A | Centrifugal fluid pump | |
| US3188968A | Centrifugal pumps | |
| US3171353A | Centrifugal fluid pump | |
| US2868291A | Tire truing machines | |
| US2868440A | Multi-stage centrifugal blowers, compressors and the like | |
| US2675502A | Incandescent lamp | |
| US2675452A | Ballast device for incandescent lamps | |
| US2729303A | Vacuum cleaner | |
| CA719468A | Centrifugal pumps | |
| CA766607A | Centrifugal fluid pump |