Assignee
QED ENVIRONMENTAL SYSTEMS INC
US·18 granted patents·1 pending application·486 citations·filing 1988–2005
Top patents by PatentIndex Score
19 records- 0194US4998585AFloating layer recovery apparatusQED ENVIRONMENTAL SYSTEMS INC·Filed 1989·Granted Mar 12, 1991·157 cites·11 claims
- 0288US6508310B1Bladder-type sampling pump controllerQED ENVIRONMENTAL SYSTEMS INC·Filed 2000·Granted Jan 21, 2003·35 cites·20 claims
- 0378US5147185APump apparatus for fluid sampling and collection, and the likeQED ENVIRONMENTAL SYSTEMS INC·Filed 1991·Granted Sep 15, 1992·45 cites·2 claims
- 0472US5358038AFloat operated pneumatic pumpQED ENVIRONMENTAL SYSTEMS INC·Filed 1993·Granted Oct 25, 1994·23 cites·13 claims
- 0571US6415659B1Method for analyzing purge waterQED ENVIRONMENTAL SYSTEMS INC·Filed 2000·Granted Jul 9, 2002·10 cites·13 claims
- 0670US6039546AFloat operated pneumatic pump to separate hydrocarbon from waterQED ENVIRONMENTAL SYSTEMS INC·Filed 1997·Granted Mar 21, 2000·30 cites·24 claims
- 0766US7347255B2Device for detecting water in product-only pump flow streamQED ENVIRONMENTAL SYSTEMS INC·Filed 2005·Granted Mar 25, 2008·4 cites·9 claims
- 0866US5358037AFloat operated pneumatic pumpQED ENVIRONMENTAL SYSTEMS INC·Filed 1993·Granted Oct 25, 1994·19 cites·10 claims
- 0955USRE34754EFluid sampling apparatusQED ENVIRONMENTAL SYSTEMS INC·Filed 1988·Granted Oct 11, 1994·24 cites·1 claims
- 1054US5261348AFlow-through cell with diverter circuitQED ENVIRONMENTAL SYSTEMS INC·Filed 1992·Granted Nov 16, 1993·28 cites·21 claims
- 1152US5495890AFloat operated pneumatic pumpQED ENVIRONMENTAL SYSTEMS INC·Filed 1994·Granted Mar 5, 1996·10 cites·18 claims
- 1252US5146998AApparatus and method for underground samplingQED ENVIRONMENTAL SYSTEMS INC·Filed 1990·Granted Sep 15, 1992·30 cites·8 claims
- 1350US6456201B1Method and apparatus for measuring groundwater levelsQED ENVIRONMENTAL SYSTEMS INC·Filed 2000·Granted Sep 24, 2002·13 cites·23 claims
- 1448US2006018776A1Piston pumpQED ENVIRONMENTAL SYSTEMS INC·Filed 2005·Application pending·0 cites
- 1547US5419191AApparatus for counting cycles of fluid flowQED ENVIRONMENTAL SYSTEMS INC·Filed 1993·Granted May 30, 1995·13 cites·7 claims
- 1643US5301749ADual pump floating layer recovery apparatusQED ENVIRONMENTAL SYSTEMS INC·Filed 1992·Granted Apr 12, 1994·9 cites·15 claims
- 1742US5259450AVented packer for sampling wellQED ENVIRONMENTAL SYSTEMS INC·Filed 1992·Granted Nov 9, 1993·16 cites·12 claims
- 1842US5147184AFloating layer recovery apparatusQED ENVIRONMENTAL SYSTEMS INC·Filed 1990·Granted Sep 15, 1992·18 cites·6 claims
- 1930US5400650AApparatus for counting cycles of fluid flowQED ENVIRONMENTAL SYSTEMS INC·Filed 1992·Granted Mar 28, 1995·2 cites·4 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →