Assignee
PREC COVER SYSTEMS INC
US·6 granted patents·182 citations·filing 2000–2003
Technology mixE02D6
Top patents by PatentIndex Score
6 records- 0193US6524026B2Adjustable height utility access devicePREC COVER SYSTEMS INC·Filed 2001·Granted Feb 25, 2003·54 cites·7 claims
- 0293US6457901B1Adjustable manhole apparatusPREC COVER SYSTEMS INC·Filed 2000·Granted Oct 1, 2002·50 cites·2 claims
- 0380US6520713B2Height and angle adjustable utility access device and methodPREC COVER SYSTEMS INC·Filed 2001·Granted Feb 18, 2003·26 cites·16 claims
- 0476US6955499B2Adjustable utility accessPREC COVER SYSTEMS INC·Filed 2003·Granted Oct 18, 2005·21 cites·22 claims
- 0570US6799920B2Angle adjustable utility access and methodPREC COVER SYSTEMS INC·Filed 2002·Granted Oct 5, 2004·17 cites·24 claims
- 0670US6695526B2Adjustable manhole apparatusPREC COVER SYSTEMS INC·Filed 2002·Granted Feb 24, 2004·14 cites·4 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →