Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7284619 | Packer with positionable collar | Paul Andrew Reinhardt, Doyle Warren, Jackie D. Newberry | 2007-10-23 |
| 6752205 | Inflatable packer with prestressed bladder | Andrew Kutac, Paul Andrew Reinhardt, Dennis Roessler | 2004-06-22 |
| 5711372 | Inflatable packer with port collar valving and method of setting | — | 1998-01-27 |
| 5682952 | Extendable casing circulator and method | — | 1997-11-04 |
| 5289875 | Apparatus for obtaining subterranean fluid samples | Lawrence Sanford | 1994-03-01 |
| 5191939 | Casing circulator and method | — | 1993-03-09 |
| 5137086 | Method and apparatus for obtaining subterranean fluid samples | Lawrence Sanford | 1992-08-11 |
| 5010966 | Drilling method | Richard C. Haas | 1991-04-30 |
| 4923007 | Inflatable packer with improved reinforcing members | Lawrence Sanford | 1990-05-08 |
| 4893678 | Multiple-set downhole tool and method | Lawrence Sanford | 1990-01-16 |
| 4823882 | Multiple-set packer and method | Lawrence Sanford | 1989-04-25 |
| 4768590 | Inflatable well packer | Lawrence Sanford | 1988-09-06 |
| 4648448 | Packer assembly | Lawrence Sanford, Edwin C. Turner | 1987-03-10 |
| 4194561 | Placement apparatus and method for low density ball sealers | Steven R. Erbstoesser | 1980-03-25 |