David R. Smith
245Patents
31h-index
193Co-inventors
93Inventor score
Filing activity: Apr 16, 1956 → Oct 9, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6180415A | Plasmon resonant particles, methods and apparatus | Emerging Cross-Sectional Technologies | 213 | Expired |
| US9558667B2 | Systems and methods for cooperative collision detection | Physics | 150 | Active |
| US9853361B2 | Surface scattering antennas with lumped elements | Electricity | 125 | Active |
| US6789621B2 | Intelligent well system and method | Human Necessities | 100 | Expired |
| US6817410B2 | Intelligent well system and method | Human Necessities | 99 | Expired |
| US8040586B2 | Metamaterials | Electricity | 99 | Active |
| US7538946B2 | Metamaterials | Electricity | 94 | Expired |
| US4654806A | Method and apparatus for monitoring transformers | Electricity | 83 | Expired |
| US7522124B2 | Indefinite materials | Electricity | 75 | Expired |
| US7104324B2 | Intelligent well system and method | Human Necessities | 70 | Expired |
| US5863440A | Methods for ameliorating oil spills in marine and inland waters | Emerging Cross-Sectional Technologies | 59 | Expired |
| US7080057B2 | Electronic employee selection systems and methods | Physics | 55 | Expired |
| US7730958B2 | Method and apparatus to enhance hydrocarbon production from wells | Emerging Cross-Sectional Technologies | 51 | Active |
| US6758271B1 | System and technique to improve a well stimulation process | Fixed Constructions | 49 | Expired |
| US9711852B2 | Modulation patterns for surface scattering antennas | Electricity | 46 | Active |
| US9806415B2 | Modulation patterns for surface scattering antennas | Electricity | 44 | Active |
| US9806414B2 | Modulation patterns for surface scattering antennas | Electricity | 44 | Active |
| US9812779B2 | Modulation patterns for surface scattering antennas | Electricity | 44 | Active |
| US8047285B1 | Method and apparatus to deliver energy in a well system | Fixed Constructions | 40 | Active |
| US9165469B2 | Systems and methods for coordinating sensor operation for collision detection | Physics | 39 | Active |
| US7182134B2 | Intelligent well system and method | Human Necessities | 38 | Expired |
| US7310626B2 | Electronic employee selection systems and methods | Physics | 38 | Expired |
| US6179056A | Artificial lift, concentric tubing production system for wells and method of using same | Fixed Constructions | 37 | Expired |
| US5120305A | Method and apparatus for delivering or withdrawing fluids | Human Necessities | 37 | Expired |
| US7637326B2 | Downhole safety valve apparatus and method | Fixed Constructions | 37 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.