Engelhard Sensor Technologies, Inc.
9Patents
0Active
9Granted
28Portfolio score
Filing activity: Apr 13, 1995 → Oct 24, 2000
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5721430A | Passive and active infrared analysis gas sensors and applicable multichannel detector assembles | Physics | 95 | Expired |
| US5966077A | Fire detector | Physics | 54 | Expired |
| US5691704A | Practical and improved fire detector | Physics | 38 | Expired |
| US5767776A | Fire detector | Physics | 37 | Expired |
| US5650624A | Passive infrared analysis gas sensor | Physics | 35 | Expired |
| US5747808A | NDIR gas sensor | Physics | 25 | Expired |
| US5798700A | False alarm resistant fire detector with improved performance | Physics | 22 | Expired |
| US6255653A | Diffusion-type NDIR gas analyzer with improved response time due to convection flow | Physics | 7 | Expired |
| US6023069A | Semi-constant power circuit for use with a thermal radiation source | Physics | 4 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.