SMITH INTERNATIONAL, INC.
🏢 View company profile →1,433Patents
600Active
1,433Granted
57Portfolio score
Filing activity: Nov 14, 1973 → Feb 1, 2021 · 288 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4604106A | Composite polycrystalline diamond compact | Mechanical Engineering; Lighting; Heating | 497 | Expired |
| US4560014A | Thrust bearing assembly for a downhole drill motor | Mechanical Engineering; Lighting; Heating | 462 | Expired |
| US4738322A | Polycrystalline diamond bearing system for a roller cone rock bit | Mechanical Engineering; Lighting; Heating | 390 | Expired |
| US4811801A | Rock bits and inserts therefor | Performing Operations; Transporting | 383 | Expired |
| US7331410B2 | Drill bit arcuate-shaped inserts with cutting edges and method of manufacture | Fixed Constructions | 378 | Expired |
| US4694918A | Rock bit with diamond tip inserts | Performing Operations; Transporting | 346 | Expired |
| US5160925A | Short hop communication link for downhole MWD system | Fixed Constructions | 294 | Expired |
| US6732817B2 | Expandable underreamer/stabilizer | Fixed Constructions | 270 | Expired |
| US5370195A | Drill bit inserts enhanced with polycrystalline diamond | Fixed Constructions | 264 | Expired |
| US4729440A | Transistion layer polycrystalline diamond bearing | Mechanical Engineering; Lighting; Heating | 208 | Expired |
| US4802539A | Polycrystalline diamond bearing system for a roller cone rock bit | Mechanical Engineering; Lighting; Heating | 201 | Expired |
| US7377341B2 | Thermally stable ultra-hard material compact construction | Performing Operations; Transporting | 196 | Expired |
| US5607024A | Stability enhanced drill bit and cutting structure having zones of varying wear resistance | Fixed Constructions | 192 | Expired |
| US6474425B1 | Asymmetric diamond impregnated drill bit | Fixed Constructions | 186 | Expired |
| US7142986B2 | System for optimizing drilling in real time | Fixed Constructions | 183 | Expired |
| US5443129A | Apparatus and method for orienting and setting a hydraulically-actuatable tool in a borehole | Fixed Constructions | 179 | Expired |
| US5667028A | Multiple diamond layer polycrystalline diamond composite cutters | Performing Operations; Transporting | 173 | Expired |
| US7350601B2 | Cutting elements formed from ultra hard materials having an enhanced construction | Emerging Cross-Sectional Technologies | 171 | Expired |
| US6039131A | Directional drift and drill PDC drill bit | Fixed Constructions | 171 | Expired |
| US6424919B1 | Method for determining preferred drill bit design parameters and drilling parameters using a trained artificial neural network, and methods for training the artificial neural network | Fixed Constructions | 169 | Expired |
| US5880382A | Double cemented carbide composites | Emerging Cross-Sectional Technologies | 167 | Expired |
| US5379853A | Diamond drag bit cutting elements | Fixed Constructions | 167 | Expired |
| US5833021A | Surface enhanced polycrystalline diamond composite cutters | Fixed Constructions | 161 | Expired |
| US6439326B1 | Centered-leg roller cone drill bit | Fixed Constructions | 158 | Expired |
| US4981184A | Diamond drag bit for soft formations | Fixed Constructions | 155 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.