| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 6 | |
| #2 | Argentina | 1 | |
| #3 | China | 1 | |
| #4 | Czechia | 1 | |
| #5 | EPO (European Patent Office) | 1 | |
| #6 | India | 1 | |
| #7 | Mexico | 1 | |
| #8 | New Zealand | 1 | |
| #9 | Poland | 1 | |
| #10 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Control |
| # | Technology | |
|---|---|---|
| #1 | Analysing materials | |
| #2 | Alarm systems | |
| #3 | Measuring light |
| # | Name | Total Patents |
|---|---|---|
| #1 | Wong Jacob Y | 11 |
| #2 | Wong Jacob Yauman | 3 |
| Publication | Filing date | Title |
|---|---|---|
| US5347474A | Self-calibration of an NDIR gas sensor | |
| US5079422A | Fire detection system using spatially cooperative multi-sensor input technique | |
| US5053754A | Simple fire detector | |
| US5103096A | Rapid fire detector | |
| US5060508A | Gas sample chamber | |
| US5026992A | Spectral ratioing technique for NDIR gas analysis using a differential temperature source |