Oy Partek Ab
51Patents
0Active
51Granted
38Portfolio score
Filing activity: Oct 12, 1979 → Jan 10, 1994
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5123941A | Apparatus for producing mineral wool | Emerging Cross-Sectional Technologies | 87 | Expired |
| US5059472A | Multi-ply wood product | Emerging Cross-Sectional Technologies | 39 | Expired |
| US4453878A | Lock device for loading equipment | Performing Operations; Transporting | 28 | Expired |
| US5107517A | Melting furnace | Emerging Cross-Sectional Technologies | 27 | Expired |
| US4290726A | Equipment for loading of an exchange platform or container | Performing Operations; Transporting | 24 | Expired |
| US5007623A | Method for feeding the primary web of a mineral wool web by means of a pendulum conveyor onto a receiving conveyor and an arrangement of such a pendulum conveyor | Textiles; Paper | 23 | Expired |
| US4640074A | Concrete building unit of a sandwich structure and a truss element and an insulating plate for such a building unit | Performing Operations; Transporting | 22 | Expired |
| US4593511A | Panel for exterior insulation | Fixed Constructions | 21 | Expired |
| US4312952A | Fibre glass composition | Chemistry; Metallurgy | 17 | Expired |
| US4514816A | Method and apparatus for the classification of piece goods which are in a state of motion | Physics | 17 | Expired |
| US4755098A | Equipment for loading a cargo space onto a vehicle and for removing the cargo space off the vehicle | Performing Operations; Transporting | 17 | Expired |
| US5051123A | Arrangement for cleaning surfaces of a wool chamber in the manufacture of mineral wool | Textiles; Paper | 15 | Expired |
| US4641466A | Window | Emerging Cross-Sectional Technologies | 15 | Expired |
| US4344731A | Equipment for raising an exchange platform or container to a horizontal position above the level of the transport position | Performing Operations; Transporting | 15 | Expired |
| US4381347A | Fibre glass composition | Chemistry; Metallurgy | 12 | Expired |
| US4620577A | Enclosed material shuttle system | Performing Operations; Transporting | 10 | Expired |
| USD268830S | Exchange platform frame for mounting on the frame of a truck or the like | General | 10 | Expired |
| US4608216A | Method for the casting of hollow slabs out of concrete | Performing Operations; Transporting | 10 | Expired |
| US4398450A | Hydraulic motor | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US5313758A | Construction board and its manufacturing method | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5023030A | Method for casting one or several concrete products placed side by side | Performing Operations; Transporting | 8 | Expired |
| US4700613A | Hydraulic motor with stationary axle and rotating fluid distributor | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US4574064A | Method for continuous casting of objects out of a high-viscosity casting mix | Textiles; Paper | 8 | Expired |
| US4341500A | Loading equipment | Performing Operations; Transporting | 7 | Expired |
| US4786242A | Apparatus for the casting of hollow slabs out of concrete | Performing Operations; Transporting | 7 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.