| 8698939 |
Dual beam optic with dichroic filter |
— |
2014-04-15 |
| 8323576 |
Vapor sensing instrument for ultra trace chemical detection |
Craig Aker, Colin J. Cumming, Mark E. Fisher, Michael Fox, Marcus LaGrone +2 more |
2012-12-04 |
| 8319880 |
Dual beam optic with dichroic filter |
— |
2012-11-27 |
| 7419636 |
Vapor sensing instruments for ultra trace chemical detection |
Craig Aker, Colin J. Cumming, Mark E. Fisher, Michael Fox, Marcus J. IaGrone +2 more |
2008-09-02 |
| 6868911 |
Methods and apparatus for subterranean fluid separation and removal |
Henry P. Jacobson |
2005-03-22 |
| 6558626 |
Vapor sensing instrument for ultra trace chemical detection |
Craig Aker, Colin J. Cumming, Mark E. Fisher, Michael Fox, Marcus LaGrone +2 more |
2003-05-06 |
| H651 |
Gas phase photoacoustic detector for infrared spectroscopy |
Dennis M. Davis, Lynn D. Hoffland |
1989-07-04 |
| 4839516 |
Method for quantitative analysis of core samples |
David L. Freeman, Donald G. Harville |
1989-06-13 |
| 4699002 |
Process and apparatus for analyzing cuttings from oil and gas wells |
— |
1987-10-13 |
| 4608859 |
Process and apparatus for analyzing cutting from oil and gas wells |
— |
1986-09-02 |
| 4348428 |
Method of depositing doped amorphous semiconductor on a substrate |
Gilbert J. Mains |
1982-09-07 |