Assignee
WATER POLLUTION CONTROL CORP
15 granted patents·531 citations·filing 1974–1995
Top patents by PatentIndex Score
15 records- 0193US4288394ASewage aeration systemWATER POLLUTION CONTROL CORP·Filed 1979·Granted Sep 8, 1981·89 cites·48 claims
- 0288US4889620AIn place gas cleaning of diffusion elementsWATER POLLUTION CONTROL CORP·Filed 1985·Granted Dec 26, 1989·77 cites·20 claims
- 0387US3979289AFiltration methodWATER POLLUTION CONTROL CORP·Filed 1974·Granted Sep 7, 1976·51 cites·32 claims
- 0483US5597491ADirect delivery in-situ diffuser cleaningWATER POLLUTION CONTROL CORP·Filed 1994·Granted Jan 28, 1997·56 cites·6 claims
- 0583US5378355ADirect delivery in-situ diffuser cleaningWATER POLLUTION CONTROL CORP·Filed 1992·Granted Jan 3, 1995·48 cites·37 claims
- 0675US3953553ASewage treatment aeration systemsWATER POLLUTION CONTROL CORP·Filed 1975·Granted Apr 27, 1976·33 cites·9 claims
- 0770US4294696ASwing diffuserWATER POLLUTION CONTROL CORP·Filed 1980·Granted Oct 13, 1981·31 cites·12 claims
- 0870US4198299AMicroscreen method and apparatusWATER POLLUTION CONTROL CORP·Filed 1977·Granted Apr 15, 1980·26 cites·37 claims
- 0965US5714062ADiffuser conduit jointWATER POLLUTION CONTROL CORP·Filed 1995·Granted Feb 3, 1998·34 cites·65 claims
- 1063US4012470ASewage treatment aeration systemsWATER POLLUTION CONTROL CORP·Filed 1975·Granted Mar 15, 1977·23 cites·9 claims
- 1161US4261933ADiffusion elementWATER POLLUTION CONTROL CORP·Filed 1978·Granted Apr 14, 1981·20 cites·58 claims
- 1245US4451373ARing channel aeration apparatus and methodWATER POLLUTION CONTROL CORP·Filed 1981·Granted May 29, 1984·13 cites·133 claims
- 1344US5328601AApparatus for in place gas cleaning of diffusion elementsWATER POLLUTION CONTROL CORP·Filed 1989·Granted Jul 12, 1994·13 cites·38 claims
- 1440US4261932ADiffusion element with boundary zone treatmentWATER POLLUTION CONTROL CORP·Filed 1978·Granted Apr 14, 1981·9 cites·65 claims
- 1537US4288395ADiffusion element with boundary zone treatmentWATER POLLUTION CONTROL CORP·Filed 1980·Granted Sep 8, 1981·8 cites·42 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →