| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 5 | |
| #2 | Canada | 4 | |
| #3 | France | 4 | |
| #4 | United Kingdom | 4 | |
| #5 | Germany | 2 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Electric discharge tubes | |
| #2 | Venting or aerating devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hall Lewis D | 8 |
| #2 | Hugo Hauser | 1 |
| #3 | Theodore Kwockton Tom | 1 |
| #4 | David James Brian | 1 |
| #5 | James Brian D | 1 |
| #6 | Sugg John W | 1 |
| #7 | William Sugg John | 1 |
| #8 | Sugg John William | 1 |
| #9 | Tom Theodore K | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB1171141A | Asymmetric Ion Pump | |
| US3231715A | Filament for evaporating reactive metal in high vacuum apparatus | |
| US3185435A | Valve construction | |
| US3107844A | Single cell vacuum apparatus | |
| US3112864A | Modular electronic ultrahigh vacuum pump | |
| US3070283A | Vacuum pump | |
| CA676224A | Single cell vacuum apparatus | |
| CA684239A | Vacuum pump | |
| CA821643A | Asymmetric ion pump and method | |
| CA672278A | Modular electronic ultrahigh vacuum pump |