Issued Patents 2002
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6458283 | Lost circulation fluid treatment | David W. Largent, David Schulte | 2002-10-01 |
| 6457588 | Treatment of fluid having lost circulation material | David Schulte, David W. Largent | 2002-10-01 |
| 6454099 | Vibrator separator screens | David Schulte, Kenneth W. Seyffert, David W. Largent, Charles N. Grichar, Guy L. McClung, III | 2002-09-24 |
| 6450345 | Glue pattern screens and methods of production | Kenneth W. Seyffert, David W. Largent, David Schulte, Charles N. Grichar, Vincent D. Leone +2 more | 2002-09-17 |
| 6401934 | Ramped screen & vibratory separator system | David W. Largent, Kenneth W. Seyffert, David Schulte, Guy L. MoClung, III | 2002-06-11 |
| 6371302 | Vibratory separator screens | Kenneth W. Seyffert, David W. Largent, David Schulte, Jeffrey E. Walker, Hector M. Murray +3 more | 2002-04-16 |
| 6371306 | Lost circulation fluid treatment | David W. Largent, David Schulte | 2002-04-16 |