Issued Patents All Time
Showing 25 most recent of 47 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9958321 | Transverse optical transmission probe | Norman A. Jennings | 2018-05-01 |
| 9618447 | Optical transmission cell with minimized spurious absorption | Norman A. Jennings | 2017-04-11 |
| RE41744 | Raman probe having a small diameter immersion tip | — | 2010-09-21 |
| 7446317 | Multipass cell for gas analysis using a coherent optical source | — | 2008-11-04 |
| 6876801 | Raman probe having a small diameter immersion tip | — | 2005-04-05 |
| 6795177 | Multipass sampling system for Raman spectroscopy | — | 2004-09-21 |
| 6563992 | Small diameter diffuse reflectance probe | — | 2003-05-13 |
| 6009219 | Optical beam switching device | — | 1999-12-28 |
| 5991029 | Attenuated total reflecance probe employing large incidence angles | — | 1999-11-23 |
| 5818996 | Fiber-optic coupled diffuse reflectance probe | — | 1998-10-06 |
| 5773825 | Bi-layer attenuated total reflectance device providing optimized absorbance linearity | — | 1998-06-30 |
| 5566086 | Method of ensuring accurate identification and measurement of solutes | — | 1996-10-15 |
| 5459316 | Immersion probe for infrared internal reflectance spectroscopy | — | 1995-10-17 |
| 5421194 | Liquid quality analysis system combining sparging and an infrared gas cell | Norman A. Jennings | 1995-06-06 |
| 5418615 | Probe for liquid sample analysis by light transmission | — | 1995-05-23 |
| 5239409 | Reflectance infrared microscope having high radiation throughput | Norman S. Hughes | 1993-08-24 |
| 5218856 | Analysis of liquid-carried impurities by means of sparging | — | 1993-06-15 |
| 5065025 | Gas sample analysis provided by light pipe radiation structure | — | 1991-11-12 |
| 5054869 | Light pipe system having maximum radiation throughput | — | 1991-10-08 |
| 5054920 | Internal reflectance cell having improved sample flow geometry | — | 1991-10-08 |
| 5051551 | Immersion probe for infrared internal reflectance spectroscopy | — | 1991-09-24 |
| 5015100 | Apparatus and method for normal incidence reflectance spectroscopy | — | 1991-05-14 |
| 5011243 | Reflectance infrared microscope having high radiation throughput | Norman S. Hughes | 1991-04-30 |
| 4988195 | Internal reflectance apparatus and method using cylindrical elements | — | 1991-01-29 |
| 4852955 | Microscope for use in modular FTIR spectrometer system | Norman S. Hughes | 1989-08-01 |