Robert H. Slaughter, Jr.
29Patents
16h-index
22Co-inventors
81Inventor score
Filing activity: Oct 31, 1983 → Dec 1, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4781697A | Removable protective shield for needle sheath | Human Necessities | 188 | Expired |
| US7152702B1 | Modular system for a back reamer and method | Emerging Cross-Sectional Technologies | 74 | Expired |
| US7137460B2 | Back reaming tool | Fixed Constructions | 64 | Expired |
| US5152194A | Hardfaced mill tooth rotary cone rock bit | Fixed Constructions | 54 | Expired |
| US6729418B2 | Back reaming tool | Fixed Constructions | 54 | Expired |
| US4582149A | Drill bit having replaceable nozzles directing drilling fluid at a predetermined angle | Fixed Constructions | 41 | Expired |
| US6033117A | Sealed bearing drill bit with dual-seal configuration | Mechanical Engineering; Lighting; Heating | 36 | Expired |
| US6206110A | Protected lubricant reservoir with pressure control for sealed bearing earth boring drill bit | Fixed Constructions | 35 | Expired |
| US6196339A | Dual-seal drill bit pressure communication system | Emerging Cross-Sectional Technologies | 31 | Expired |
| US6254275A | Sealed bearing drill bit with dual-seal configuration and fluid-cleaning capability | Mechanical Engineering; Lighting; Heating | 30 | Expired |
| US6196338A | Hardfacing rock bit cones for erosion protection | Fixed Constructions | 26 | Expired |
| US8177000B2 | Modular system for a back reamer and method | Emerging Cross-Sectional Technologies | 20 | Active |
| US6408957B1 | Sealed bearing roller cone bit having anti-plugging device | Fixed Constructions | 19 | Expired |
| US6264367A | Dual-seal drill bit with fluid cleaning capability | Fixed Constructions | 17 | Expired |
| US6296067A | Protected lubricant reservoir for sealed bearing earth boring drill bit | Fixed Constructions | 16 | Expired |
| US8302709B2 | Downhole tool leg retention methods and apparatus | Fixed Constructions | 16 | Active |
| US6431293B1 | Dual-seal drill bit pressure communication system | Emerging Cross-Sectional Technologies | 12 | Expired |
| US6679342B2 | Dual-seal drill bit pressure communication system | Emerging Cross-Sectional Technologies | 11 | Expired |
| US7210377B2 | Cone erosion protection for roller cone drill bits | Emerging Cross-Sectional Technologies | 10 | Expired |
| US6619412B2 | Protected lubricant reservoir for sealed earth boring drill bit | Fixed Constructions | 10 | Expired |
| US6244364A | Earth-boring bit having cobalt/tungsten carbide inserts | Fixed Constructions | 8 | Expired |
| US6698098B2 | Cone erosion protection for roller cone drill bits | Emerging Cross-Sectional Technologies | 8 | Expired |
| US6598689B1 | Roller cone for drill bit having improved resistance to fatigue cracking | Performing Operations; Transporting | 8 | Expired |
| US6695079B2 | Dual-seal drill bit pressure communication system | Emerging Cross-Sectional Technologies | 7 | Expired |
| US7237627B2 | Bearing and lubrication system for earth boring bit | Fixed Constructions | 5 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.