Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7077440 | Knockdown nerf bar for replaceably and adjustably protecting a side of a vehicle from dings and dents | Armindo Morales | 2006-07-18 |
| 5679255 | Microcolumns for chromatography and method for making same | Curtis D. Pfeiffer | 1997-10-21 |
| 5522988 | On-line coupled liquid and gas chromatography system with an interface capillary tube interposed between a pair of capillary chromatographic columns | Curtis D. Pfeiffer, Bruce Richter | 1996-06-04 |
| 5376277 | Multidimensional chromatographic system | Curtis D. Pfeiffer, Steven J. Martin, Charles G. Smith, Gary L. Jewett | 1994-12-27 |
| 5340475 | On-line supercritical fluid extraction multidimensional chromatographic system | Robert Marshall Campbell | 1994-08-23 |
| 5240604 | Multidimensional chromatographic system | Curtis D. Pfeiffer, Steven J. Martin, Charles G. Smith, Gary L. Jewett | 1993-08-31 |
| 5236593 | On-line coupled liquid and gas chromatography system with an interface capillary tube interposed between a pair of capillary chromatographic columns | Curtis D. Pfeiffer, Bruce Richter | 1993-08-17 |
| 5234599 | On-line multidimensional chromatographic system with large volume injection handling for supercritical fluid chromatography | Robert Marshall Campbell, R. Paul Himes, Curtis D. Pfeffer | 1993-08-10 |
| 5231466 | Capillary fluid stream concentration measuring apparatus and method | Steven R. Erskine, Yvonne M. Walbroehl, Curtis D. Pfeiffer | 1993-07-27 |
| 5139681 | On-line multidimensional chromatographic system with large volume injection handling for supercritical fluid chromatography | Robert Marshall Campbell, R. Paul Himes, Curtis D. Pfeiffer | 1992-08-18 |
| 4999105 | Apparatus for membrane assisted liquid chromatography | Richard G. Melcher | 1991-03-12 |
| 4935145 | On-line coupled liquid and gas chromatography system | Curtis D. Pfeiffer, Bruce Richter | 1990-06-19 |
| 4793920 | Chromatography columns with cast porous plugs and methods of fabricating same | Curtis D. Pfeiffer, Bruce Richter, Timothy S. Stevens | 1988-12-27 |
| 4775476 | Method for membrane assisted liquid chromatography | Richard G. Melcher | 1988-10-04 |
| 4629705 | Indirect-photometric chromatography done in and with a variable capacity weakly basic or acidic ion exchange column | Timothy S. Stevens | 1986-12-16 |
| 4529521 | Method and apparatus for analyzing latexes | James C. Davis | 1985-07-16 |