Strata Bit Corporation
21Patents
0Active
21Granted
31Portfolio score
Filing activity: Jun 11, 1980 → Feb 3, 1987
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4499795A | Method of drill bit manufacture | Emerging Cross-Sectional Technologies | 218 | Expired |
| US4592433A | Cutting blank with diamond strips in grooves | Fixed Constructions | 127 | Expired |
| US4396077A | Drill bit with carbide coated cutting face | Fixed Constructions | 127 | Expired |
| US4499958A | Drag blade bit with diamond cutting elements | Fixed Constructions | 125 | Expired |
| US4640374A | Rotary drill bit | Fixed Constructions | 96 | Expired |
| US4538691A | Rotary drill bit | Fixed Constructions | 95 | Expired |
| US4662896A | Method of making an abrasive cutting element | Performing Operations; Transporting | 55 | Expired |
| US4478297A | Drill bit having cutting elements with heat removal cores | Fixed Constructions | 54 | Expired |
| US4494618A | Drill bit with self cleaning nozzle | Fixed Constructions | 39 | Expired |
| US4323130A | Drill bit | Emerging Cross-Sectional Technologies | 38 | Expired |
| USRE32036E | Drill bit | General | 29 | Expired |
| US4724913A | Drill bit and improved cutting element | Fixed Constructions | 28 | Expired |
| US4442909A | Drill bit | Fixed Constructions | 25 | Expired |
| US4533005A | Adjustable nozzle | Fixed Constructions | 24 | Expired |
| US4705123A | Cutting element for a rotary drill bit and method for making same | Emerging Cross-Sectional Technologies | 24 | Expired |
| US4381825A | Drill bit nozzle | Fixed Constructions | 23 | Expired |
| US4739845A | Nozzle for rotary bit | Fixed Constructions | 21 | Expired |
| US4716975A | Cutting element having a stud and cutting disk bonded thereto | Emerging Cross-Sectional Technologies | 18 | Expired |
| US4632196A | Drill bit with shrouded cutter | Fixed Constructions | 12 | Expired |
| US4727945A | Cutting element having diamond cutting blank reinforced by a shoulder | Fixed Constructions | 7 | Expired |
| US4658918A | Threaded nozzle for a drill bit | Fixed Constructions | 4 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.