Mark S. Greenfield
29Patents
9h-index
28Co-inventors
75Inventor score
Filing activity: May 18, 1978 → Apr 13, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4189013A | Roof drill bit | Fixed Constructions | 28 | Expired |
| US6998173B2 | Cemented carbide tool and method of making | Emerging Cross-Sectional Technologies | 28 | Expired |
| US6554548B1 | Chromium-containing cemented carbide body having a surface zone of binder enrichment | Emerging Cross-Sectional Technologies | 22 | Expired |
| US4817743A | Butterfly-type shim having semi-opened bottom and double sandwich braze joint produced therewith | Fixed Constructions | 18 | Expired |
| US4389074A | Mine tools utilizing copper-manganese nickel brazing alloys | Fixed Constructions | 15 | Expired |
| US8080323B2 | Cutting insert with a wear-resistant coating scheme exhibiting wear indication and method of making the same | Emerging Cross-Sectional Technologies | 14 | Active |
| US5623723A | Hard composite and method of making the same | Emerging Cross-Sectional Technologies | 14 | Expired |
| US6638474B2 | method of making cemented carbide tool | Emerging Cross-Sectional Technologies | 13 | Expired |
| US6866921B2 | Chromium-containing cemented carbide body having a surface zone of binder enrichment | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4886710A | Mining/construction tool bit having bit body fabricated from Mn-B steel alloy composition | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4859543A | Earth working tool having a working element fabricated from cemented tungsten carbide compositions with enhanced properties | Emerging Cross-Sectional Technologies | 9 | Expired |
| US8409695B2 | Multilayer nitride hard coatings | Emerging Cross-Sectional Technologies | 6 | Active |
| US5112411A | Process of making mining/construction tool bit body fabricated from MN/B steel alloy composition | Chemistry; Metallurgy | 5 | Expired |
| US9656873B2 | Purification of tungsten carbide compositions | Chemistry; Metallurgy | 4 | Active |
| US9017809B2 | Coatings for cutting tools | Emerging Cross-Sectional Technologies | 2 | Active |
| US8828492B2 | Method of making aluminum oxynitride coated article | Chemistry; Metallurgy | 2 | Active |
| US9365925B2 | Multilayer structured coatings for cutting tools | Chemistry; Metallurgy | 2 | Active |
| US8568866B2 | Multilayer nitride hard coatings | Emerging Cross-Sectional Technologies | 2 | Active |
| US9181620B2 | Coatings for cutting tools | Emerging Cross-Sectional Technologies | 1 | Active |
| US6183687A | Hard composite and method of making the same | Performing Operations; Transporting | 1 | Expired |
| US5008073A | Mn-B steel alloy composition | Chemistry; Metallurgy | 1 | Expired |
| US9371580B2 | Coated body wherein the coating scheme includes a coating layer of TiAl2O3 and method of making the same | Emerging Cross-Sectional Technologies | 1 | Active |
| US8574728B2 | Aluminum oxynitride coated article and method of making the same | Chemistry; Metallurgy | 1 | Active |
| US8409734B2 | Coated substrates and methods of making same | Emerging Cross-Sectional Technologies | 0 | Active |
| US8668982B2 | Coated cutting insert and method for making the same | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.