David L. Olson
16Patents
8h-index
21Co-inventors
72Inventor score
Filing activity: Nov 16, 1982 → Jan 7, 2011
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6036166A | Chamber valve | Mechanical Engineering; Lighting; Heating | 134 | Expired |
| US6289990A | Production tubing shunt valve | Fixed Constructions | 69 | Expired |
| US5988992A | Retrievable progressing cavity pump rotor | Mechanical Engineering; Lighting; Heating | 22 | Expired |
| US7306951B1 | Method and apparatus for determining diffusible hydrogen concentrations | Emerging Cross-Sectional Technologies | 19 | Expired |
| US6412563B1 | System and method for enhanced conditioning of well fluids circulating in and around artificial lift assemblies | Fixed Constructions | 15 | Expired |
| US4640368A | Draft sensor including strain sensor coupled to load strap | Human Necessities | 14 | Expired |
| US5186521A | Wheel and drive key assembly | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US6702027B2 | Gas dissipation chamber for through tubing conveyed ESP pumping systems | Fixed Constructions | 14 | Expired |
| US4534793A | Cast iron welding materials and method | Performing Operations; Transporting | 8 | Expired |
| US4726854A | Cast iron welding electrodes | Performing Operations; Transporting | 6 | Expired |
| US6592490B2 | Well pump gear box hydrodynamic washer | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US7431095B2 | Non-tubing deployed well artificial lift system | Mechanical Engineering; Lighting; Heating | 2 | Expired |
| US8561708B2 | ID centralizer | Fixed Constructions | 2 | Active |
| US8104534B2 | Mechanical seal and lock for tubing conveyed pump system | Fixed Constructions | 1 | Active |
| US8171997B2 | High velocity string for well pump and method for producing well fluid | Fixed Constructions | 1 | Active |
| USD478505S1 | Dispenser for sunblock towelettes | General | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.