PATENTS

BIOREFINERY & PULPING

Method for treating cellulose and alkali solutions obtained from the treatment of cellulose

INVENTOR(S): Hassi, Tikka
PRIORITY NUMBER(S): FI20145722

Method for producing high purity lignin

INVENTOR(S): Tikka
PRIORITY NUMBER(S): WO2013SE50051

Production of pulp using a gaseous organic agent as heating and reaction-accelerating media

INVENTOR(S): Enqvist, Tikka, Leopold, Luhtanen
PRIORITY NUMBER(S): FI20030001929

Method for recovering hydrolysis products

INVENTOR(S): Uusitalo, Tikka
PRIORITY NUMBER(S): FI20060005105

Batch process for preparing pulp

INVENTOR(S): Martikainen, Tikka, Timonen, Svedman
PRIORITY NUMBER(S): FI20030001929

Method for the production of precleaned pulp

INVENTOR(S): Tikka, Svedman, Fant
PRIORITY NUMBER(S): US20000589706, US19980167423, FI19970004455

Composition for increasing the mass absorption of polar systems in hydrofobic-hydrophilic hybrid materials

INVENTOR(S): Baumann, Burger, Deubzer, Tikka
PRIORITY NUMBER(S): DE1999139866

Batch process for preparing improved kraft pulp.

INVENTOR(S): Tikka, Svedman
PRIORITY NUMBER(S): FI19960002260

Production of prehydrolyzed pulp

INVENTOR(S): Tikka, Kovasin
PRIORITY NUMBER(S): FI19940000332

Batch process for preparing kraft pulp

INVENTOR(S): Hijanen, Tikka
PRIORITY NUMBER(S): FI19910003160

Method of wood raw material processing

INVENTOR(S): Tikka, Virkola
PRIORITY NUMBER(S): FI19870001730

Process for preparing kraft pulp using black liquor pretreatment reaction

INVENTOR(S): Tikka
PRIORITY NUMBER(S): US19910794795, FI19900000663, US19900563438

Process for the production of a hemicellulose hydrolysate and special high alpha cellulose pulp

INVENTOR(S): Tikka, Virkola
PRIORITY NUMBER(S): FI19870001730, US19880180210, US19890420647, US19900535287

Process for preparing kraft pulp

INVENTOR(S): Tikka
PRIORITY NUMBER(S): FI19900000663

A builder for an alkaline detergent

INVENTOR(S): Damen, Hassi, Kettunen
PRIORITY NUMBER(S): FI19880000246

BLEACHING

Method for bleaching fiber material

INVENTOR(S): Siren
PRIORITY NUMBER(S): FI20110005668

Method for bleaching fibrous material made from atypical raw material

INVENTOR(S): Hassi, Siren, Partanen, Isoherranen
PRIORITY NUMBER(S): FI20110005335

Bleaching process of chemical pulp

INVENTOR(S): Vilponen, Tikka
PRIORITY NUMBER(S): FI20060000314 WO2007FI50168

Bleaching process of chemical pulp

INVENTOR(S): Vilponen, Tikka
PRIORITY NUMBER(S): WO2007FI50167, FI20060000313

Bleaching of medium consistency pulp with ozone without high shear mixing

INVENTOR(S): De Vos, Tikka
PRIORITY NUMBER(S): US20010763221, FI19980001808, US20050029732

Bleaching of medium consistency pulp with ozone without high shear mixing

INVENTOR(S): De Vos, Tikka
PRIORITY NUMBER(S): FI19980001808

Bleaching and coating a paper web with peroxide and starch

INVENTOR(S): Hassi, Johansson, Teittinen
PRIORITY NUMBER(S): US5637193

Process Control and Measurements

Method of controlling alkaline pulping process

INVENTOR(S): Tikka, Virkola
PRIORITY NUMBER(S): US19890330954, US19870136507

Method of determining rapidly the concentration of the total sulphur dioxide and the lignosulphonate present in sulphite pulping process liquors

INVENTOR(S): Tikka, Virkola
PRIORITY NUMBER(S): FI19830004870

Apparatus for continually sampling liquor from a pulp digester.

INVENTOR(S): Tikka
PRIORITY NUMBER(S): US19880176977

Method for rapid determination of the contents of lignin, monosaccharides and organic acids in the process solutions of sulfite pulping

INVENTOR(S): Tikka, Virkola
PRIORITY NUMBER(S): US19860819136, US19830543120

Method for controlling sulphite pulping and hydrolytic processes by means of rapid furfural analyzer

INVENTOR(S): Tikka, Virkola
PRIORITY NUMBER(S): FI19840002488

Method for the rapid determination of the concentrations of lignin, monosaccharides and organic acids in process solutions from sulphite digestion

INVENTOR(S): Tikka, Virkola
PRIORITY NUMBER(S): FI19820003574

Others

Antimicrobial polymer material and its use

INVENTOR(S): Laxen, Hassi
PRIORITY NUMBER(S): FI20060005350

Hylsa foer pappersrulle sampt foerfarande foer dess framstaellning

INVENTOR(S): Hassi, Puotinen, Mansikkamäki
PRIORITY NUMBER(S): FI19880004130

Hylsa foer pappersrulle sampt foerfarande foer dess framstaellning

INVENTOR(S): Hassi, Puotinen, Mansikkamäki
PRIORITY NUMBER(S): FI19880004129