Ronald P. Steiger
19Patents
12h-index
6Co-inventors
71Inventor score
Filing activity: Dec 11, 1980 → Apr 29, 2010
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5275063A | Measurement of hydration behavior of geologic materials | Physics | 54 | Expired |
| US5435187A | End-cap-to-piston coupling for triaxial test apparatus | Physics | 53 | Expired |
| US5226310A | Methods and apparatuses for measurement of the strengths, pore pressures, and mechanical properties of low permeability geologic materials | Physics | 46 | Expired |
| US5159828A | Microaccumulator for measurement of fluid volume changes under pressure | Physics | 30 | Expired |
| US5205164A | Methods for determining in situ shale strengths, elastic properties, pore pressures, formation stresses, and drilling fluid parameters | Fixed Constructions | 28 | Expired |
| US5265461A | Apparatuses and methods for measuring ultrasonic velocities in materials | Physics | 27 | Expired |
| US5198415A | Nontoxic, nonchloride, water-base, inhibitive fluid to stabilize water sensitive shale | Chemistry; Metallurgy | 22 | Expired |
| US5285692A | Methods for measuring physical parameters of a low permeability rock formation in situ | Fixed Constructions | 21 | Expired |
| US4876512A | Method for rapidly determining the swelling-clay content in shales and shaly sandstone formations by high-frequency dielectric constant measurements | Physics | 21 | Expired |
| US5253518A | Apparatuses and methods for adjusting a material's fluid content and effective stresses | Fixed Constructions | 14 | Expired |
| US4602690A | Detachable apparatus for preventing differential pressure sticking in wells | Fixed Constructions | 14 | Expired |
| US5010301A | Method for determining the swelling clay content of cement mixtures by dielectric measurements | Physics | 13 | Expired |
| US4427080A | Apparatus for preventing differential sticking in wells | Fixed Constructions | 9 | Expired |
| US4979393A | Process for rapidly determining the solids content in drilling fluids | Physics | 8 | Expired |
| US5359903A | Load cell | Physics | 5 | Expired |
| US6857581B2 | Spraying method and a spray system for coating liquids | Performing Operations; Transporting | 1 | Expired |
| US9700906B2 | Spray coating device for coating material | Performing Operations; Transporting | 0 | Active |
| US6632479B2 | Spraying method and a spray system for coating liquids | Performing Operations; Transporting | 0 | Expired |
| US6915963B2 | Spraying method and a spray system for coating liquids | Performing Operations; Transporting | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.