| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 41 | |
| #2 | Canada | 12 | |
| #3 | United Kingdom | 8 | |
| #4 | France | 2 | |
| #5 | Austria | 1 | |
| #6 | Germany | 1 | |
| #7 | Denmark | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Machines | |
| #3 | Mechanical elements | |
| #4 | Thermal processes | |
| #5 | Electrical machinery and energy | |
| #6 | Measurement |
| # | Technology | |
|---|---|---|
| #1 | Siphons | |
| #2 | Unspecified technologies | |
| #3 | Lubricating | |
| #4 | Domestic heating systems | |
| #5 | Measuring volume | |
| #6 | Electric switches | |
| #7 | Non-positive-displacement pumps | |
| #8 | Burners | |
| #9 | Clutches and brakes | |
| #10 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Yoder Howard D | 19 |
| #2 | Mcclymont Bryce W | 6 |
| #3 | Pribil Alexis R | 5 |
| #4 | Marty Fred J | 4 |
| #5 | O'Leary Frank J | 4 |
| #6 | Mccoy Elijah | 3 |
| #7 | Sweeney Peter J | 3 |
| #8 | Valboe Peter P | 2 |
| #9 | Downes William Albert | 2 |
| #10 | Warrick Charles F | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US2566570A | High-pressure liquid level gauge | |
| US2480070A | Liquid level gauge | |
| US2131269A | Switch structure | |
| GB480883A | Improvements in hot water heating systems | |
| US2055211A | Water heater | |
| US2117389A | Vacuum or siphon breaker | |
| US2017302A | Circulator | |
| US2061605A | Heat control system | |
| US2006615A | Cellar drainer | |
| US1971438A | Universal adapter | |
| US1791547A | Centrifugal device for bearings | |
| US1806187A | Jet device | |
| DE537816C | Injector | |
| GB331299A | Improvements in an injector | |
| US1836262A | Injector | |
| GB312263A | Injector | |
| GB317897A | Improvements in quick action electric switches | |
| US1837459A | Injector | |
| GB298859A | Rotary sump pump | |
| GB305867A | Improvements in a flexible coupling for pumps and the like |