Inventor · disambiguated record
Risto Ljokkoi
Also filed as: LJOKKOI RISTO · LJOKKOI RISTO A
14 granted patents·251 citations·filing 1988–2003
93Inventor score
Top patents by PatentIndex Score
14 records- 0189US5000842AMethod and apparatus for treating fiber suspensionAHLSTROEM OY·Filed 1990·Granted Mar 19, 1991·51 cites·8 claims
- 0273US5172813AMethod and an apparatus for treating fiber suspensionAHLSTROEM OY·Filed 1991·Granted Dec 22, 1992·21 cites·21 claims
- 0370US5575395AMethod and apparatus for screening fibrous suspensionsAHLSTROEM OY·Filed 1994·Granted Nov 19, 1996·20 cites·36 claims
- 0470US5224603AApparatus for treating fiber suspensionAHLSTROEM OY·Filed 1992·Granted Jul 6, 1993·23 cites·18 claims
- 0567US7229527B2Method for the controlled thickening of low consistency fiber suspensionsANDRITZ AHLSTROM OY·Filed 2003·Granted Jun 12, 2007·3 cites·18 claims
- 0667US5547083AApparatus for treating fiber suspensionAHLSTROEM OY·Filed 1993·Granted Aug 20, 1996·33 cites·40 claims
- 0763US4995991AMethod and apparatus for improving the operation of a disc filterAHLSTROEM OY·Filed 1989·Granted Feb 26, 1991·15 cites·15 claims
- 0862US5338451AApparatus for treating pulpAHLSTROEM OY·Filed 1993·Granted Aug 16, 1994·20 cites·11 claims
- 0959US6340805B1Method of manufacturing a wire screen productANDRITZ AHLSTROM OY·Filed 1996·Granted Jan 22, 2002·19 cites·9 claims
- 1054US6767432B1Apparatus for the thickening of fiber suspensionsANDRITZ OY·Filed 1999·Granted Jul 27, 2004·9 cites·8 claims
- 1149US6119867AScreen cylinderAHLSTROM MACHINERY OY·Filed 1996·Granted Sep 19, 2000·20 cites·11 claims
- 1245US5094715AArrangement for removing thread-like impurities from a defiberizing drumAHLSTROEM OY·Filed 1991·Granted Mar 10, 1992·9 cites·11 claims
- 1341US5960962AScreenAHLSTROM MACHINERY OY·Filed 1998·Granted Oct 5, 1999·5 cites·22 claims
- 1438US4915822AMethod and apparatus for treating fiber suspensionAHLSTROEM OY·Filed 1988·Granted Apr 10, 1990·3 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →