Kvaerner Pulping AB
108Patents
0Active
108Granted
39Portfolio score
Filing activity: Jan 20, 1995 → Sep 13, 2004
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5935053A | Fractionator | Textiles; Paper | 31 | Expired |
| US5744004A | System for feeding a suspension to a pressurized vessel | Mechanical Engineering; Lighting; Heating | 24 | Expired |
| US5824187A | Method for the continuous cooking of pulp | Textiles; Paper | 22 | Expired |
| US6258282A | Rotatable filter system for filtration of a flowing substance | Performing Operations; Transporting | 20 | Expired |
| US6113783A | Device in a filter sector for a rotating filter disc | Performing Operations; Transporting | 15 | Expired |
| US6071378A | Method and device for treating a pulp suspension | Performing Operations; Transporting | 15 | Expired |
| US5636849A | Translatable bearing stuffing box | Textiles; Paper | 13 | Expired |
| US6468390B1 | Method for continuous cooking of lignocellulosic fiber material | Textiles; Paper | 13 | Expired |
| US6179958A | Method for continuous cooking of cellulose-containing fibre material | Textiles; Paper | 12 | Expired |
| US6123807A | Method for the continuous cooking of pulp | Textiles; Paper | 12 | Expired |
| US6059323A | Expansion unit for piping adjustment | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US6095028A | Hydraulic unit | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US5771817A | Recovery boiler | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US5885414A | Method of producing pulp with high alkali cooking in the last cooking stage | Textiles; Paper | 10 | Expired |
| US6203662A | Method for the continuous cooking of pulp in a digester system having a top separator | Textiles; Paper | 10 | Expired |
| US7156952B2 | Method and arrangement for oxygen delignification of cellulose pulp | Textiles; Paper | 9 | Expired |
| US6159336A | Method and device for the continuous cooking of pulp | Textiles; Paper | 8 | Expired |
| US6103058A | Method for the continuous cooking of pulp | Textiles; Paper | 8 | Expired |
| US6062547A | Quench vessel for recovering chemicals and energy from spent liquors | Emerging Cross-Sectional Technologies | 8 | Expired |
| US6139685A | Method and device for treating a pulp suspension | Textiles; Paper | 8 | Expired |
| US6341888B1 | Apparatus for introduction of a first fluid into a second fluid | Textiles; Paper | 7 | Expired |
| US6238468A | Quench vessel | Emerging Cross-Sectional Technologies | 7 | Expired |
| US6793809B2 | Pipe system for receiving and transporting lime sludge from a white liquor filter | Emerging Cross-Sectional Technologies | 7 | Expired |
| US6113739A | Process for washing gas formed by gasifying black liquor | Emerging Cross-Sectional Technologies | 7 | Expired |
| US5716497A | Method and device for the continuous cooking of pulp | Textiles; Paper | 7 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.