Sakari Ruppi
40Patents
14h-index
20Co-inventors
81Inventor score
Filing activity: Jul 13, 1990 → Sep 3, 2015
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5137774A | Multi-oxide coated carbide body and method of producing the same | Emerging Cross-Sectional Technologies | 59 | Expired |
| US5635247A | Alumina coated cemented carbide body | Chemistry; Metallurgy | 43 | Expired |
| US5162147A | Kappa-alumina oxide coated carbide body and method of producing the same | Emerging Cross-Sectional Technologies | 36 | Expired |
| US7163735B2 | Enhanced alumina layer produced by CVD | Emerging Cross-Sectional Technologies | 33 | Expired |
| US6015614A | Cemented carbide body with high wear resistance and extra tough behavior | Emerging Cross-Sectional Technologies | 32 | Expired |
| US5700569A | Multilayered alumina coated cemented carbide body | Emerging Cross-Sectional Technologies | 28 | Expired |
| US7192660B2 | Layer with controlled grain size and morphology for enhanced wear resistance | Emerging Cross-Sectional Technologies | 25 | Expired |
| US6251508A | Grade for cast iron | Emerging Cross-Sectional Technologies | 23 | Expired |
| US6221469A | Grade for steel | Emerging Cross-Sectional Technologies | 22 | Expired |
| US7094447B2 | Enhanced alumina layer produced by CVD | Emerging Cross-Sectional Technologies | 19 | Expired |
| US6632514B1 | Coated cutting insert for milling and turning applications | Emerging Cross-Sectional Technologies | 16 | Expired |
| US6572991B1 | Deposition of &ggr;-Al2O3 by means of CVD | Emerging Cross-Sectional Technologies | 16 | Expired |
| US7135221B2 | Coated cutting insert for rough turning | Emerging Cross-Sectional Technologies | 16 | Expired |
| US6472060B1 | Coated body with nanocrystalline CVD coating for enhanced edge toughness and reduced friction | Emerging Cross-Sectional Technologies | 14 | Expired |
| US6689450B2 | Enhanced Al2O3-Ti(C,N) multi-coating deposited at low temperature | Emerging Cross-Sectional Technologies | 12 | Expired |
| US7455900B2 | Alumina layer with enhanced texture | Emerging Cross-Sectional Technologies | 10 | Active |
| US7396581B2 | Enhanced alumina layer produced by CVD | Emerging Cross-Sectional Technologies | 10 | Active |
| US7923101B2 | Texture-hardened alpha-alumina coated tool | Emerging Cross-Sectional Technologies | 10 | Active |
| US7442431B2 | Enhanced alumina layer with texture | Emerging Cross-Sectional Technologies | 8 | Active |
| US7442432B2 | Alumina layer with controlled texture | Emerging Cross-Sectional Technologies | 8 | Active |
| US7993742B2 | Alumina layer with enhanced texture | Emerging Cross-Sectional Technologies | 8 | Active |
| US6720095B2 | Coated cemented carbide body and method for use | Emerging Cross-Sectional Technologies | 7 | Expired |
| US7132153B2 | Coated cutting tool insert for machining of cast irons | Emerging Cross-Sectional Technologies | 6 | Expired |
| US6620498B2 | Coated body with nanocrystalline CVD coating for enhanced edge toughness and reduced friction | Emerging Cross-Sectional Technologies | 5 | Expired |
| US7695764B2 | Alumina layer with enhanced texture | Emerging Cross-Sectional Technologies | 4 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.