| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 6 | |
| #2 | France | 3 | |
| #3 | United Kingdom | 3 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Machines | |
| #3 | Civil engineering | |
| #4 | Electrical machinery and energy | |
| #5 | Audio-visual technology | |
| #6 | Engines, pumps and turbines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Johnsen Einar A | 2 |
| #2 | Wagner George Peter | 1 |
| #3 | Maxon Jr Glenway | 1 |
| #4 | Bailey Gary C | 1 |
| #5 | Ord Harriet P | 1 |
| #6 | Poole Cecil P | 1 |
| #7 | Lawrence Almon R | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4392548A | Speaker enclosure and method of producing same | |
| GB673185A | Improvements in and relating to turbines for operating well boring bits | |
| US1904948A | Mechanical fine grader | |
| US1684959A | Condenser | |
| US1684227A | Condenser | |
| GB227766A | Improvements in surface condensers | |
| GB234330A | Improvements in surface condensers | |
| US1429149A | Heat interchanger | |
| US1112833A | Automatic regulation for electrical apparatus. |