Quantel, S.A.
Records under this name other than patents Quantel, S.A. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
Showing 1 to 9 of 9 · Back to Quantel, S.A.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 3,999,144 | Process for eliminating small-scale intensity fluctuations of laser beams Term ended Term ended no later than Dec 21, 1996 · Low confidence | Term ended | Term ended no later than Dec 21, 1996 | Low confidence |
| US 4,276,519 | High yield diffraction limited laser oscillator Term ended Term ended no later than Jun 30, 2001 · Low confidence | Term ended | Term ended no later than Jun 30, 2001 | Low confidence |
| US 4,289,379 | Optical system having a variable focal length Term ended Term ended no later than Sep 15, 2001 · Low confidence | Term ended | Term ended no later than Sep 15, 2001 | Low confidence |
| US 4,298,247 | Thick optical element having a variable curvature Term ended Term ended no later than Nov 3, 2001 · Low confidence | Term ended | Term ended no later than Nov 3, 2001 | Low confidence |
| US 4,407,567 | Objective having a variable focal length Term ended Term ended no later than Oct 4, 2003 · Low confidence | Term ended | Term ended no later than Oct 4, 2003 | Low confidence |
| US 4,420,222 | Mirror having a variable focal length Term ended Term ended no later than Dec 13, 2003 · Low confidence | Term ended | Term ended no later than Dec 13, 2003 | Low confidence |
| US 4,490,021 | Optical filtering element and a spectral refining device including the same Term ended Term ended no later than Dec 25, 2004 · Low confidence | Term ended | Term ended no later than Dec 25, 2004 | Low confidence |
| US 4,896,816 | Method for producing a fluidtight and heat curable seal between metal objects and a body of vitroceramic material Term ended Term ended no later than Jan 30, 2010 · Low confidence | Term ended | Term ended no later than Jan 30, 2010 | Low confidence |
| US 5,004,341 | Active optical gyrometer employing a phase conjugation Term ended Term ended no later than Apr 2, 2011 · Low confidence | Term ended | Term ended no later than Apr 2, 2011 | Low confidence |