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WIKDAHL NILS ANDERS LENNART

Overview
  • Total Patents
    179
About

WIKDAHL NILS ANDERS LENNART has a total of 179 patent applications. Its first patent ever was published in 1959. It filed its patents most often in Canada, Sweden and Finland. Its main competitors in its focus markets textiles and paper, machines and chemical engineering are CELLECO AB, NICHOLS ENGINEERING AND RES CO and GL & V SWEDEN AB.

Patent filings per year

Chart showing WIKDAHL NILS ANDERS LENNARTs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Wikdahl Nils Anders Lennart 95
#2 Wikdahl Nils A L 34
#3 Wikdahl N A Lennart 11
#4 Lennart Wikdahl Nils Anders 8
#5 Anders Lennart Wikdahl Nils 7
#6 Grundelius Nils Roland 4
#7 Ahlborg Nils Knut Gabriel 4
#8 Grundelius Nils R 1
#9 Grundelius N R 1
#10 Ahlborg Nils K G 1

Latest patents

Publication Filing date Title
CA2316980A1 A process and apparatus for the production of cellulose pulps of improved quality
FI912765A0 Method and apparatus for producing cellulose pulp with improved quality properties
WO9107231A1 A method for separating fibre suspensions
EP0422314A1 A method and device for the production of cellulose pulp of improved quality
NZ229835A Hydrocyclone with obstruction in apex chamber
FI875126A Fiberfraktioneringsanordning.
EP0160629A2 A method and system for controlling the apex flow of a multihydrocyclone for fiber suspensions
CA1243986A Apparatus for fractionating fiber suspensions
CA1254153A Method for dewatering a fiber suspension in a dewatering apparatus
CA1255237A Method in thickening a fiber suspension in a thickening apparatus
DE3322618A1 Process for purifying a fibre suspension
EP0098270A1 Method and apparatus in screening fibre suspensions.
WO8302293A1 Method and plant for deaerating fibre suspensions
EP0096041A1 Method of preventing clogging a screening means
SE8203942D0 Process for cleaning fibre suspensions, especially in the cellulose and paper industry, in a hydrocyclone installation
CA1053587B Process and apparatus for the separation of gas mixtures into component fractions according to their molecular or atomic weight
US4092130A Process for the separation of gas mixtures into component fractions according to their molecular or atomic weight
CA1077863A Process and apparatus for the separation of gas mixtures into component fractions according to their molecular or atomic weight
IT1080751B Cyclonic sepn of gas mixts - with multiple effect small cyclones
DE2433974A1 HYDROCYCLONE SAFETY