| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 7 | |
| #2 | United States | 5 | |
| #3 | Germany | 2 | |
| #4 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Telecommunications | |
| #2 | Electrical machinery and energy |
| # | Technology | |
|---|---|---|
| #1 | Waveguides | |
| #2 | Electric switches | |
| #3 | Antennas | |
| #4 | Electrically-conductive connections |
| # | Name | Total Patents |
|---|---|---|
| #1 | Lanctot Donald H | 6 |
| #2 | Lanctot Donald Hugh | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US3141943A | Co-axial switch | |
| GB905417A | Antenna | |
| GB891433A | Miniature wave guide switch | |
| US3019402A | Step attenuator | |
| US3019322A | Double throw co-axial switch | |
| GB879080A | Remotely operable electromagnetic co-axial switch | |
| GB878433A | Electrical switch | |
| US3036282A | Co-axial switch | |
| US3022474A | Micro-wave attenuator | |
| GB872840A | Ultra-high frequency double stub tuner | |
| GB871259A | High frequency switching unit | |
| CA651093A | Miniature wave guide switch |