Sumiden Opcom, Ltd.
Records under this name other than patents Sumiden Opcom, Ltd. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,050,673 | Temperature control device and arrayed waveguide grating optical wavelength multiplexer/demultiplexer Lapsed on the fee record Ended May 23, 2014 · From the USPTO record | Lapsed on the fee record | Ended May 23, 2014 | From the USPTO record |
| US 5,176,730 | Method of producing optical-fiber coupler Term ended Term ended no later than Jan 5, 2013 · Low confidence | Term ended | Term ended no later than Jan 5, 2013 | Low confidence |
| US 5,205,851 | Method and apparatus for producing optical fiber coupler Term ended Term ended no later than Apr 27, 2013 · Low confidence | Term ended | Term ended no later than Apr 27, 2013 | Low confidence |
| US 5,208,883 | Method of reinforcing optical fiber coupler Term ended Term ended no later than May 4, 2013 · Low confidence | Term ended | Term ended no later than May 4, 2013 | Low confidence |
| US 5,247,598 | Reinforcing apparatus for optical-fiber coupler Term ended Term ended no later than Sep 21, 2013 · Low confidence | Term ended | Term ended no later than Sep 21, 2013 | Low confidence |
| US 5,261,018 | Optical-coupler reinforcing material and optical-coupler reinforcing method Term ended Term ended no later than Nov 9, 2013 · Low confidence | Term ended | Term ended no later than Nov 9, 2013 | Low confidence |
| US 5,306,323 | Fiber coupler manufacturing apparatus having an automatic breaking test device Term ended Term ended no later than Apr 26, 2014 · Low confidence | Term ended | Term ended no later than Apr 26, 2014 | Low confidence |
| US 5,309,536 | Process for producing an optical fiber coupler Term ended Term ended no later than May 3, 2014 · Low confidence | Term ended | Term ended no later than May 3, 2014 | Low confidence |
| US 5,318,610 | Fiber coupler manufacturing apparatus having an automatic breaking test device Term ended Term ended no later than Jun 7, 2014 · Low confidence | Term ended | Term ended no later than Jun 7, 2014 | Low confidence |
| US 5,329,600 | Reflection monitor optical fiber coupler manufacturing system and method Term ended Term ended no later than Jul 12, 2014 · Low confidence | Term ended | Term ended no later than Jul 12, 2014 | Low confidence |