HOGANAS AB
50Patents
3Active
50Granted
38Portfolio score
Filing activity: Jun 23, 1975 → Aug 4, 2010 · 2 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6300702A | Electrical machine element | Electricity | 51 | Expired |
| US5744433A | Metal powder composition for warm compaction and method for producing sintered products | Chemistry; Metallurgy | 36 | Expired |
| US4676831A | Powder mixture containing talloil free of segregation | Chemistry; Metallurgy | 28 | Expired |
| US5754936A | Iron powder components containing thermoplastic resin and method of making same | Performing Operations; Transporting | 27 | Expired |
| US6331688A | Use of a metal powder for surface coating by submerged arc welding | Performing Operations; Transporting | 26 | Expired |
| US5480469A | Powder mixture and method for the production thereof | Performing Operations; Transporting | 22 | Expired |
| US4061501A | Refractory linings | Chemistry; Metallurgy | 19 | Expired |
| US5631431A | Particulate CaF.sub.2 agent for improving the machinability of sintered iron-based powder | Chemistry; Metallurgy | 17 | Expired |
| US5567890A | Iron-based powder composition having good dimensional stability after sintering | Chemistry; Metallurgy | 16 | Expired |
| US4569659A | Refractory lining for a furnace | Mechanical Engineering; Lighting; Heating | 16 | Expired |
| US5403371A | Iron-based powder, component made thereof, and method of making the component | Chemistry; Metallurgy | 16 | Expired |
| US8911662B2 | Powder, method of manufacturing a component and component | Mechanical Engineering; Lighting; Heating | 15 | Active |
| US5798177A | Heat treating of magnetic iron powder | Emerging Cross-Sectional Technologies | 14 | Expired |
| US6261514A | Method of preparing sintered products having high tensile strength and high impact strength | Chemistry; Metallurgy | 13 | Expired |
| US6171546A | Powder metallurgical body with compacted surface | Performing Operations; Transporting | 11 | Expired |
| US4244745A | High-strength refractory casting compound for the manufacture of monolithic linings | Chemistry; Metallurgy | 10 | Expired |
| US4806168A | Refractory material and its use | Chemistry; Metallurgy | 9 | Expired |
| US5703304A | Iron-based powder containing chromium, molybdenum and manganese | Chemistry; Metallurgy | 8 | Expired |
| US4663262A | Carrier for use in electrophotographic developers | Chemistry; Metallurgy | 8 | Expired |
| US5061088A | Device for rotatably mounting a machine element | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US5926686A | Sintered products having improved density | Performing Operations; Transporting | 8 | Expired |
| US6027544A | Process for the preparation of an iron-based powder | Performing Operations; Transporting | 7 | Expired |
| US6231635A | Lubricant powder for powder metallurgy | Performing Operations; Transporting | 6 | Expired |
| US5902373A | Sponge-iron powder | Chemistry; Metallurgy | 6 | Expired |
| US5505760A | Powder-metallurgical composition having good soft magnetic properties | Electricity | 6 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.