Interzeag AG
Records under this name other than patents Interzeag AG holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 6,623,118 | Stimulus and method for measuring the field of vision of the human eye Term ended Term ended May 15, 2021 · From the USPTO record | Term ended | Term ended May 15, 2021 | From the USPTO record |
| US 6,612,700 | Device for testing visual functions of the human eye Lapsed on the fee record Ended Sep 2, 2015 · From the USPTO record | Lapsed on the fee record | Ended Sep 2, 2015 | From the USPTO record |
| US 4,265,534 | Optical apparatus and method for producing the same Term ended Term ended no later than May 5, 2001 · Low confidence | Term ended | Term ended no later than May 5, 2001 | Low confidence |
| US 4,334,738 | Method of perimetric examination of visual fields Term ended Term ended no later than Jun 15, 2002 · Low confidence | Term ended | Term ended no later than Jun 15, 2002 | Low confidence |
| US 4,334,739 | Method of graphically displaying the results of repeated perimetric examination of visual fields Term ended Term ended no later than Jun 15, 2002 · Low confidence | Term ended | Term ended no later than Jun 15, 2002 | Low confidence |
| US 4,395,124 | Apparatus for position encoding Term ended Term ended no later than Jul 26, 2003 · Low confidence | Term ended | Term ended no later than Jul 26, 2003 | Low confidence |
| US 4,410,244 | Retinal acuity testing device Term ended Term ended no later than Oct 18, 2003 · Low confidence | Term ended | Term ended no later than Oct 18, 2003 | Low confidence |
| US 4,526,452 | Method and apparatus for measuring contrast sensitivity Term ended Term ended no later than Jul 2, 2005 · Low confidence | Term ended | Term ended no later than Jul 2, 2005 | Low confidence |
| US 4,541,697 | Ophthalmic testing devices Term ended Term ended no later than Sep 17, 2005 · Low confidence | Term ended | Term ended no later than Sep 17, 2005 | Low confidence |
| US 4,542,989 | Apparatus for position encoding Term ended Term ended no later than Sep 24, 2005 · Low confidence | Term ended | Term ended no later than Sep 24, 2005 | Low confidence |