Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9700906 | Spray coating device for coating material | — | 2017-07-11 |
| 6915963 | Spraying method and a spray system for coating liquids | — | 2005-07-12 |
| 6857581 | Spraying method and a spray system for coating liquids | — | 2005-02-22 |
| 6632479 | Spraying method and a spray system for coating liquids | — | 2003-10-14 |
| 5435187 | End-cap-to-piston coupling for triaxial test apparatus | Russell Thomas Ewy, Rudolf J. Stankovich | 1995-07-25 |
| 5359903 | Load cell | Peter K. Leung, Rudolf J. Stankovich | 1994-11-01 |
| 5285692 | Methods for measuring physical parameters of a low permeability rock formation in situ | Peter K. Leung | 1994-02-15 |
| 5275063 | Measurement of hydration behavior of geologic materials | Rudolf J. Stankovich | 1994-01-04 |
| 5265461 | Apparatuses and methods for measuring ultrasonic velocities in materials | Peter K. Leung, Rudolf J. Stankovich | 1993-11-30 |
| 5253518 | Apparatuses and methods for adjusting a material's fluid content and effective stresses | Peter K. Leung | 1993-10-19 |
| 5226310 | Methods and apparatuses for measurement of the strengths, pore pressures, and mechanical properties of low permeability geologic materials | — | 1993-07-13 |
| 5205164 | Methods for determining in situ shale strengths, elastic properties, pore pressures, formation stresses, and drilling fluid parameters | Peter K. Leung | 1993-04-27 |
| 5198415 | Nontoxic, nonchloride, water-base, inhibitive fluid to stabilize water sensitive shale | — | 1993-03-30 |
| 5159828 | Microaccumulator for measurement of fluid volume changes under pressure | Peter K. Leung | 1992-11-03 |
| 5010301 | Method for determining the swelling clay content of cement mixtures by dielectric measurements | Peter K. Leung, Kenneth R. Kunze | 1991-04-23 |
| 4979393 | Process for rapidly determining the solids content in drilling fluids | Peter K. Leung | 1990-12-25 |
| 4876512 | Method for rapidly determining the swelling-clay content in shales and shaly sandstone formations by high-frequency dielectric constant measurements | Michael K. Kroeger, John M. Longo, Peter K. Leung | 1989-10-24 |
| 4602690 | Detachable apparatus for preventing differential pressure sticking in wells | — | 1986-07-29 |
| 4427080 | Apparatus for preventing differential sticking in wells | — | 1984-01-24 |