Assignee
ERCO IND LTD
CA·45 granted patents·831 citations·filing 1973–1984
Top patents by PatentIndex Score
45 records- 0195US4081520AHigh efficiency production of chlorine dioxide by solvay processERCO IND LTD·Filed 1977·Granted Mar 28, 1978·65 cites·1 claims
- 0294US4534952ASmall scale generation of chlorine dioxide for water treatmentERCO IND LTD·Filed 1984·Granted Aug 13, 1985·94 cites·11 claims
- 0393US4414193AProduction of chlorine dioxide on a small scaleERCO IND LTD·Filed 1982·Granted Nov 8, 1983·52 cites·18 claims
- 0493US4203961AChlorine dioxide generation processERCO IND LTD·Filed 1978·Granted May 20, 1980·59 cites·7 claims
- 0591US4251224AControl system for chlorine dioxide plantsERCO IND LTD·Filed 1979·Granted Feb 17, 1981·45 cites·14 claims
- 0688US4325934AProduction of chlorine dioxide with conversion of by-product solid phase sodium acid sulphate to its neutral formERCO IND LTD·Filed 1980·Granted Apr 20, 1982·37 cites·19 claims
- 0788US4276262AChlorine dioxide generatorERCO IND LTD·Filed 1979·Granted Jun 30, 1981·41 cites·12 claims
- 0886US4473540AHigh efficiency chlorine dioxide processERCO IND LTD·Filed 1983·Granted Sep 25, 1984·34 cites·14 claims
- 0986US4250159ASmall scale chlorine dioxide plantERCO IND LTD·Filed 1980·Granted Feb 10, 1981·29 cites·8 claims
- 1084US4465658AChlorine dioxide processERCO IND LTD·Filed 1983·Granted Aug 14, 1984·30 cites·13 claims
- 1182US4336228AChlorine dioxide generatorERCO IND LTD·Filed 1980·Granted Jun 22, 1982·35 cites·12 claims
- 1282US4086329AIntegrated chlorine dioxide producing systemERCO IND LTD·Filed 1977·Granted Apr 25, 1978·31 cites·11 claims
- 1374US4115307APhosphate compositionERCO IND LTD·Filed 1977·Granted Sep 19, 1978·30 cites·13 claims
- 1473US4194953AProcess for producing chlorate and chlorate cell constructionERCO IND LTD·Filed 1979·Granted Mar 25, 1980·28 cites·19 claims
- 1572US4251503AEfficiency control system for chlorine dioxide plantsERCO IND LTD·Filed 1979·Granted Feb 17, 1981·18 cites·12 claims
- 1668US4393035AChlorine dioxide production using mixed hydrochloric and sulfuric acid feedERCO IND LTD·Filed 1981·Granted Jul 12, 1983·16 cites·22 claims
- 1767US4393036AProduction of mixed sulfuric and hydrochloric acid feed and chlorine dioxide generation therewithERCO IND LTD·Filed 1981·Granted Jul 12, 1983·16 cites·9 claims
- 1865US4086328AProduction of chlorine dioxide from buffered reaction mediaERCO IND LTD·Filed 1977·Granted Apr 25, 1978·13 cites·4 claims
- 1962US4075308AProduction of chlorine dioxide at high efficiencyERCO IND LTD·Filed 1977·Granted Feb 21, 1978·13 cites·10 claims
- 2061US4145401AHigh efficiency chlorine dioxide production at low acidity with methanol additionERCO IND LTD·Filed 1977·Granted Mar 20, 1979·11 cites·5 claims
- 2156US3975506AProduction of chlorine dioxideERCO IND LTD·Filed 1975·Granted Aug 17, 1976·9 cites·4 claims
- 2255US4194961AElectrode spacer elementERCO IND LTD·Filed 1979·Granted Mar 25, 1980·8 cites·10 claims
- 2353US4167643AElectrode jointsERCO IND LTD·Filed 1978·Granted Sep 11, 1979·11 cites·4 claims
- 2453US4154809AHigh efficiency chlorine dioxide production using HCl as acid and methanol additionERCO IND LTD·Filed 1978·Granted May 15, 1979·8 cites·5 claims
- 2552US4290998AWashing apparatus in chlorine dioxide productionERCO IND LTD·Filed 1979·Granted Sep 22, 1981·14 cites·3 claims
- 2645US4188367AManufacture of red phosphorusERCO IND LTD·Filed 1978·Granted Feb 12, 1980·6 cites·4 claims
- 2744US4251502AModular chlorine dioxide generation systemsERCO IND LTD·Filed 1979·Granted Feb 17, 1981·7 cites·14 claims
- 2844US4162368AAssembly of furnace electrodesERCO IND LTD·Filed 1977·Granted Jul 24, 1979·8 cites·9 claims
- 2942US4194952AProcess for regenerating waste sulfuric acidERCO IND LTD·Filed 1977·Granted Mar 25, 1980·5 cites·4 claims
- 3041US4421728AStabilization of red phosphorusERCO IND LTD·Filed 1982·Granted Dec 20, 1983·4 cites·17 claims
- 3139US4526766AProduction of red phosphorusERCO IND LTD·Filed 1983·Granted Jul 2, 1985·7 cites·7 claims
- 3239US4152403AProduction of red phosphorusERCO IND LTD·Filed 1978·Granted May 1, 1979·6 cites·10 claims
- 3339US3971707AOxidation of phosphorus in aqueous mediumERCO IND LTD·Filed 1973·Granted Jul 27, 1976·6 cites·15 claims
- 3438US4489183AStabilization of red phosphorusERCO IND LTD·Filed 1983·Granted Dec 18, 1984·3 cites·10 claims
- 3538US4409066ABleaching procedure using chlorine dioxide and chlorine solutionsERCO IND LTD·Filed 1982·Granted Oct 11, 1983·4 cites·14 claims
- 3637US4366120ASmall scale chlorine dioxide plantERCO IND LTD·Filed 1980·Granted Dec 28, 1982·4 cites·1 claims
- 3736US4406736AMethod of bleaching pulp with an aqueous solution of chlorine dioxide and chlorine followed by a chlorine solutionERCO IND LTD·Filed 1981·Granted Sep 27, 1983·3 cites·4 claims
- 3835US4421598ABleaching procedure using chlorine dioxide and chlorine solutionsERCO IND LTD·Filed 1982·Granted Dec 20, 1983·3 cites·13 claims
- 3935US4299653AMethod of bleaching pulp with an aqueous solution of chlorine dioxide and chlorine followed by a chlorine solutionERCO IND LTD·Filed 1979·Granted Nov 10, 1981·2 cites·8 claims
- 4032US4414088AChlorate cell systemERCO IND LTD·Filed 1981·Granted Nov 8, 1983·5 cites·4 claims
- 4132US4276273AProduction of sodium polyphosphatesERCO IND LTD·Filed 1980·Granted Jun 30, 1981·2 cites·16 claims
- 4230US4325783ABleaching procedure using chlorine dioxide and chlorine solutionsERCO IND LTD·Filed 1979·Granted Apr 20, 1982·1 cites·12 claims
- 4325US4049513ATreatment of cell anodesERCO IND LTD·Filed 1976·Granted Sep 20, 1977·2 cites·5 claims
- 4424US4292275AModular chlorine dioxide generation systemsERCO IND LTD·Filed 1980·Granted Sep 29, 1981·2 cites·11 claims
- 4523US4203957AModified phosphorus furnace operationERCO IND LTD·Filed 1978·Granted May 20, 1980·4 cites·4 claims
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →