Oy Tampella AB
159Patents
0Active
159Granted
41Portfolio score
Filing activity: Oct 22, 1971 → Aug 15, 1991
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4461095A | Method of continuous drying of a paper or other porous web and a drying device for applying this method | Mechanical Engineering; Lighting; Heating | 46 | Expired |
| US4482430A | Extended nip press lubricating system for a paper machine | Emerging Cross-Sectional Technologies | 44 | Expired |
| US4617715A | Method for preliminary anchoring of a wire rope bolt | Emerging Cross-Sectional Technologies | 39 | Expired |
| US4124441A | Sheet forming apparatus including edge seals for forming wires | Textiles; Paper | 37 | Expired |
| US4112586A | Method of drying a cardboard or a paper web and drying device for applying this method | Mechanical Engineering; Lighting; Heating | 31 | Expired |
| US4432805A | Method for continuous saccharification of cellulose of plant raw material | Chemistry; Metallurgy | 31 | Expired |
| US4713147A | Extended nip press with displaceable center of gravity for the supporting force | Textiles; Paper | 30 | Expired |
| US4622758A | Method of and a device for drying a paper web or the like | Textiles; Paper | 28 | Expired |
| US4735539A | Apparatus for handling sheets or the like | Performing Operations; Transporting | 27 | Expired |
| US3971449A | Procedure for controlling a rock drill and rock drill for carrying out the procedure | Fixed Constructions | 27 | Expired |
| US4613434A | Device for treatment of wastewater by means of anaerobic fermentation | Emerging Cross-Sectional Technologies | 25 | Expired |
| US4181568A | Headbox for a paper machine for the production of a fiber web of at least two plies | Textiles; Paper | 25 | Expired |
| US4506457A | Method and apparatus for drying a paper, or similar, web | Mechanical Engineering; Lighting; Heating | 24 | Expired |
| US4545778A | Cog-belt-driven, noise-suppressed power transmission device | Mechanical Engineering; Lighting; Heating | 23 | Expired |
| US4887362A | Method and an apparatus for drying a paper web or the like | Textiles; Paper | 22 | Expired |
| US4931140A | Method and a device for cutting a web in a paper machine by means of a water jet | Emerging Cross-Sectional Technologies | 22 | Expired |
| US4173249A | Extended nip press for a paper machine | Textiles; Paper | 22 | Expired |
| US4711090A | Method of and device for adjusting the feed movement of a drill rod for drilling a rock | Fixed Constructions | 21 | Expired |
| US4632618A | Feed storage for drill rods for a long-hole drilling apparatus | Fixed Constructions | 21 | Expired |
| US4958444A | Apparatus for drying a fibre web | Mechanical Engineering; Lighting; Heating | 20 | Expired |
| US4506456A | Method for drying a porous web in an extended nip press | Textiles; Paper | 20 | Expired |
| US4496429A | Extended nip press for a paper machine | Emerging Cross-Sectional Technologies | 20 | Expired |
| US4899461A | Method of drying a paper board or paper web | Textiles; Paper | 19 | Expired |
| US4787641A | Arrangement for sealing a chamber containing pressure medium | Emerging Cross-Sectional Technologies | 18 | Expired |
| US5002743A | Process for the removal of sulfur dioxide from hot flue gases | Performing Operations; Transporting | 18 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.