Assignee
OPTICAL ENGINEERING COMPANY LL
US·5 granted patents·108 citations·filing 2000–2008
Top patents by PatentIndex Score
5 records- 0181USD585604SWelding helmetOPTICAL ENGINEERING COMPANY LL·Filed 2008·Granted Jan 27, 2009·28 cites·1 claims
- 0267USD443394SSafety helmetOPTICAL ENGINEERING COMPANY LL·Filed 2000·Granted Jun 5, 2001·17 cites·1 claims
- 0365USD524991SPython protective helmetOPTICAL ENGINEERING COMPANY LL·Filed 2005·Granted Jul 11, 2006·18 cites·1 claims
- 0465US6557174B2Replaceable, self-contained expanded viewing light shield cartridge for welding helmetOPTICAL ENGINEERING COMPANY LL·Filed 2001·Granted May 6, 2003·36 cites·16 claims
- 0554USD520684SProtective helmetOPTICAL ENGINEERING COMPANY LL·Filed 2004·Granted May 9, 2006·9 cites·1 claims
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