March 6,2000 -A New pressure measuring spark plug is introduced at SAE2000
January 14, 1998 - Optrand introduces AutoPSI-HT sensor with a signal conditioner rated for 125°C
August 13, 1997 - Optrand introduces CALplug - a new generation of pressure indicating spark plugs
August 4, 1997 - Optrand introduces a range of temperature-compensated AutoPSI-TC pressure sensors
February 6, 1997 - Optrand introduces a new 700 bar (~15,000 psi) combustion pressure sensor
February 6, 1997 - Optrand introduces the World's Smallest Combustion Pressure Sensor at SAE'97
August 9, 1996 - Optrand introduces the AutoPSI-S sensor system
January 10, 1996 - Optrand introduces the AutoPSI system
January 8, 1996 - Optrand introduces the PSIplug spark plug integrated sensor system
November 14, 1995 - Optrand introduces a new sensor for diesel engine applications, Model OPS-350
"Embedded Fiber-Optic Combustion-Pressure Sensors for Advanced Electronic Engine Control"
"Fiber-Optic Pressure Sensors for Harsh Environment Applications"
| Title | US Patent # | Date Issued |
| Fiber Optic Combustion Pressure Sensors for Engine Knock and Misfire Detection | 6,131,465 | October 17, 2000 |
| Integrated Fiber Optic Combustion Pressure Sensor | 6,122,971 | September 26, 2000 |
| Fiber Optic Combustion Pressure Sensor with Improved Long-Term Reliablity | 5,600,070 | Feb. 4, 1997 |
| Compensation and Status Monitoring Devices for Fiber Optic Intensity-Modulated Sensors | 5,600,125 | Feb. 4, 1997 |
| Fiber Optic Microbend Sensor for Engine Knock and Misfire Detection. | 5,421,195 | Jun. 6, 1995 |
| Fiber Optic Diaphragm Sensors for Engine Knock and Misfire Detection | 5,390,546 | Feb. 21, 1995 |
| Compensation and Status Monitoring Devices for Fiber Optic Intensity-Modulated | EP0879401 | Nov 25, 1998 |
| Fuel Injectors with Integral Fiber Optic Pressure Sensors and Associated Compensation and Status Monitoring Devices | WO9835210 | Sept 13, 1997 |
| Fiber Optic Combustion Pressure Sensors for Engine Knock and Misfire Detection | WO9731251 | Sept 28, 1997 |