Inventor · disambiguated record
Raimo Virta
Also filed as: VIRTA RAIMO
19 granted patents·355 citations·filing 1985–2000
95Inventor score
Top patents by PatentIndex Score
19 records- 0194US4905380AMethod and apparatus in a paper machine single-wire drying groupVALMET PAPER MACHINERY INC·Filed 1988·Granted Mar 6, 1990·73 cites·16 claims
- 0281US6317999B1Sealing nozzle arranged in a blow box used in the drying section of a paper machineMETSO PAPER INC·Filed 2000·Granted Nov 20, 2001·19 cites·20 claims
- 0380US4628618AApparatus in a drying section of a paper machineVALMET OY·Filed 1985·Granted Dec 16, 1986·36 cites·20 claims
- 0478US6247247B1Blow box for the drying section of a papermaking machine, method for sealing a pocket with a blow box in the drying section of a papermaking machine, and arrangement in a papermaking machineMETSO PAPER INC·Filed 1999·Granted Jun 19, 2001·33 cites·28 claims
- 0577US5535527AMethod and arrangement in a multi-cylinder dryer of a paper machineVALMET CORP·Filed 1995·Granted Jul 16, 1996·31 cites·30 claims
- 0677US4953297AMethod of and device for pocket ventilation in the drying section of a paper machine, in particular for high-speed paper machinesVALMET PAPER MACHINERY INC·Filed 1987·Granted Sep 4, 1990·31 cites·12 claims
- 0762US5019213AMethod and apparatus in the drying section of a paper making machine for speeding the threading of a paper or paperboard webVALMET PAPER MACHINERY INC·Filed 1990·Granted May 28, 1991·15 cites·9 claims
- 0853US5509215AMethod and device for stabilization of a paper web in a group of cylinders in a drying section of a paper machineVALMET PAPER MACHINERY INC·Filed 1993·Granted Apr 23, 1996·14 cites·30 claims
- 0953US4892622AMethod for resisting formation of undulations in a fiber/water mixture during forming of a paper web in a paper-making machineVALMET OY·Filed 1987·Granted Jan 9, 1990·15 cites·9 claims
- 1051US5720852AMethod and device for stabilizing the running of a paper web in connection with a paper guide rollVALMET PAPER MACHINERY INC·Filed 1995·Granted Feb 24, 1998·9 cites·19 claims
- 1150US5996244ARoll for a paper machine, in particular for a paper drying device, and dryer group for a paper machineVALMET CORP·Filed 1997·Granted Dec 7, 1999·9 cites·22 claims
- 1249US4756183AMethod and apparatus for measuring air permeability of a wall-like or sheet-like elementVALMET OY·Filed 1987·Granted Jul 12, 1988·15 cites·16 claims
- 1348US6418639B1Method and device in the dryer section of a paper/board machineMETSO PAPER INC·Filed 1998·Granted Jul 16, 2002·8 cites·21 claims
- 1448US5152076AMethod and device in a paper machineVALMET PAPER MACHINERY INC·Filed 1990·Granted Oct 6, 1992·10 cites·18 claims
- 1547US5524360AMethod and device for ventilating pocket spaces in a multi-cylinder dryer of a paper machineVALMET PAPER MACHINERY INC·Filed 1994·Granted Jun 11, 1996·10 cites·20 claims
- 1644US6105277AProcess and system for promoting complete web support within the dryer section of a papermachineVALMET INC·Filed 1997·Granted Aug 22, 2000·9 cites·15 claims
- 1744US5728930AMethod and device for measuring the permeability of a drying wire to airVALMET CORP·Filed 1996·Granted Mar 17, 1998·10 cites·20 claims
- 1837US5635034ASuction roll or cylinder and method for removing air from a suction roll or cylinderVALMET CORP·Filed 1996·Granted Jun 3, 1997·3 cites·20 claims
- 1933US6358366B1System and method for threading a moist web in a pulp dryer or the like from one section to the following sectionMETSO PAPER INC·Filed 1999·Granted Mar 19, 2002·5 cites·27 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →