Matti O. Leiponen
12Patents
5h-index
7Co-inventors
59Inventor score
Filing activity: Sep 18, 1974 → Jun 14, 2004
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4894129A | Method and apparatus for positioning sheet-like objects | Chemistry; Metallurgy | 24 | Expired |
| US5389310A | Method and apparatus for dispersing gas into liquid | Performing Operations; Transporting | 7 | Expired |
| US4451291A | Method and apparatus for converting matte, particularly high-grade matte | Chemistry; Metallurgy | 6 | Expired |
| US6892559B2 | Method and apparatus for manufacturing tubes | Performing Operations; Transporting | 5 | Expired |
| US4806213A | Method and apparatus for stripping electrolytic precipitate from supporting structures | Chemistry; Metallurgy | 5 | Expired |
| US6920773B2 | Method and apparatus for manufacturing tubes by rolling | Performing Operations; Transporting | 4 | Expired |
| US3938672A | Device for transferring a plate-like product from one station to another | Performing Operations; Transporting | 4 | Expired |
| US4267877A | Apparatus for the continuous casting of an object of predetermined weight or size | Performing Operations; Transporting | 4 | Expired |
| US5244097A | Apparatus for feeding air into a flotation cell | Performing Operations; Transporting | 2 | Expired |
| US5358671A | Aerator device | Performing Operations; Transporting | 2 | Expired |
| US5143600A | Apparatus for feeding air into a flotation cell | Performing Operations; Transporting | 1 | Expired |
| US7257980B2 | Method and equipment for performing continuous extrusion | Performing Operations; Transporting | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.