Assignee
ENVIROQUIP INC
US·15 granted patents·522 citations·filing 1980–2002
Top patents by PatentIndex Score
15 records- 0197US6712970B1Sewage treatment process with phosphorus removalENVIROQUIP INC·Filed 2002·Granted Mar 30, 2004·131 cites·15 claims
- 0295US6743362B1Sewage treatment processENVIROQUIP INC·Filed 2002·Granted Jun 1, 2004·101 cites·10 claims
- 0381US4863644AGas diffuserENVIROQUIP INC·Filed 1988·Granted Sep 5, 1989·77 cites·11 claims
- 0477US4331542AUnderdrain unit with air/water backwash for granular filtration systemENVIROQUIP INC·Filed 1980·Granted May 25, 1982·56 cites·10 claims
- 0561US6090284AUnderdrain unit for granular filtration systemENVIROQUIP INC·Filed 1998·Granted Jul 18, 2000·34 cites·11 claims
- 0655US6454104B1Clarifier with influent well scum removalENVIROQUIP INC·Filed 2001·Granted Sep 24, 2002·6 cites·7 claims
- 0753US6691413B2Underdrain filtration system with stamped perforationsENVIROQUIP INC·Filed 2002·Granted Feb 17, 2004·5 cites·3 claims
- 0853US6274044B1Clarifier with influent well scum removalENVIROQUIP INC·Filed 2000·Granted Aug 14, 2001·5 cites·1 claims
- 0952US5830356AHydraulic differential clarifierENVIROQUIP INC·Filed 1996·Granted Nov 3, 1998·27 cites·12 claims
- 1050US5779890AMulti-eductor systemENVIROQUIP INC·Filed 1996·Granted Jul 14, 1998·14 cites·19 claims
- 1146US5972220APre-thickened aerobic digester systemENVIROQUIP INC·Filed 1998·Granted Oct 26, 1999·15 cites·23 claims
- 1244US4720360ADiffused aeration systemENVIROQUIP INC·Filed 1986·Granted Jan 19, 1988·13 cites·9 claims
- 1343US6068134AClarifier with influent well scum removalENVIROQUIP INC·Filed 1999·Granted May 30, 2000·15 cites·16 claims
- 1440US5264126AClarifier drive for waste water treatment systemENVIROQUIP INC·Filed 1992·Granted Nov 23, 1993·10 cites·11 claims
- 1533US5240609ASludge filtering device and grid systemENVIROQUIP INC·Filed 1991·Granted Aug 31, 1993·13 cites·11 claims
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →