Assignee
OSD ENVIZION COMPANY
8 granted patents·701 citations·filing 1991–1993
Top patents by PatentIndex Score
8 records- 0191US5515186AEye protection device for welding helmets which reduces obliquely incident lightOSD ENVIZION COMPANY·Filed 1993·Granted May 7, 1996·104 cites·48 claims
- 0288US5248880ADetector system for detecting the occurrence of weldingOSD ENVIZION COMPANY·Filed 1991·Granted Sep 28, 1993·85 cites·44 claims
- 0387US5208688AEye protection device for welding helmetsOSD ENVIZION COMPANY·Filed 1991·Granted May 4, 1993·266 cites·48 claims
- 0483US5252817ADetector system for detecting the occurrence of welding using detector feedbackOSD ENVIZION COMPANY·Filed 1991·Granted Oct 12, 1993·63 cites·15 claims
- 0573US5347383AHigh speed, low power driving circuit for liquid crystal shutterOSD ENVIZION COMPANY·Filed 1992·Granted Sep 13, 1994·39 cites·37 claims
- 0672US5377032AElectro-optic light shutter and frame assembly with integrated switching mechanismOSD ENVIZION COMPANY·Filed 1993·Granted Dec 27, 1994·117 cites·34 claims
- 0772USD349588SWelding lens assemblyOSD ENVIZION COMPANY·Filed 1992·Granted Aug 9, 1994·15 cites·1 claims
- 0866USD353692SWelding lens assemblyOSD ENVIZION COMPANY·Filed 1993·Granted Dec 20, 1994·12 cites·1 claims
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