| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 4 | |
| #2 | United Kingdom | 3 | |
| #3 | Canada | 2 | |
| #4 | Germany | 1 | |
| #5 | France | 1 | |
| #6 | Italy | 1 | |
| #7 | Japan | 1 | |
| #8 | Netherlands | 1 | |
| #9 | Sweden | 1 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Thermal processes | |
| #3 | Measurement |
| # | Technology | |
|---|---|---|
| #1 | Climate change mitigation in transportation | |
| #2 | Controlling combustion | |
| #3 | Measuring light | |
| #4 | Analysing materials |
| # | Name | Total Patents |
|---|---|---|
| #1 | Holstrom Geoffrey B | 4 |
| #2 | Lord Harry C | 4 |
| #3 | Egan Dale W | 4 |
| #4 | Opel Alan E | 3 |
| #5 | Egan D | 3 |
| #6 | Lord H | 3 |
| #7 | Gilbert Lyman F | 3 |
| #8 | Holstrom G | 3 |
| #9 | Howard R | 2 |
| #10 | Port D | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US4043742A | Automatic burner monitor and control for furnaces | |
| US3819945A | Spectrometers | |
| US3836237A | Window assembly for use with a stack monitor | |
| CA967390A | Spectrometers | |
| US3837744A | Spectrometers |