Assignee
OPTICAL SHIELDS INC
US·4 granted patents·155 citations·filing 1989–1995
Top patents by PatentIndex Score
4 records- 0181US5074647ALiquid crystal lens assembly for eye protectionOPTICAL SHIELDS INC·Filed 1989·Granted Dec 24, 1991·120 cites·39 claims
- 0255US5486940ALiquid crystal light polarizer and methodOPTICAL SHIELDS INC·Filed 1995·Granted Jan 23, 1996·22 cites·38 claims
- 0339US5159475AHigh speed optical protection using smectic liquid crystalOPTICAL SHIELDS INC·Filed 1991·Granted Oct 27, 1992·9 cites·50 claims
- 0436US5128061APhenyl-pyrimidine liquid crystal materialsOPTICAL SHIELDS INC·Filed 1990·Granted Jul 7, 1992·4 cites·16 claims
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