Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6552667 | Non-contact measuring method and apparatus for producing a signal representative of a distance between facing surfaces | Francois Lalonde, Jean-Marc Bourgeois | 2003-04-22 |
| 5444380 | Current surge indicator | Jean-Marc Bourgeois, Francois Lalonde, Jacques Belanger | 1995-08-22 |
| 4629979 | Apparatus for sensing and measuring a current on power transmission line | Marcel Dery | 1986-12-16 |
| 4374359 | System and method of sensing current in high voltage transmission lines utilizing the transmission of digital information by optical fibers | — | 1983-02-15 |
| 4327335 | Electronic low-pass filter circuit with an adjustable long time base | Francois Lalonde, Marius Cloutier | 1982-04-27 |
| 4293399 | Device for detecting and measuring the concentration of gaseous hydrogen dissolved in a fluid | Guy Belanger | 1981-10-06 |
| 4271474 | Apparatus for detecting and measuring the hydrogen content in a liquid substance | Guy Belanger | 1981-06-02 |
| 4256152 | Apparatus for preparing ampullas | Guy Belanger | 1981-03-17 |