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Patent applications and USPTO patent grants for Melcher; Richard G..The latest application filed is for "apparatus and method for reversed permeation membrane extraction of compounds from sample solutions".
Patent | Date |
---|---|
Apparatus and method for reversed permeation membrane extraction of compounds from sample solutions Grant 5,221,477 - Melcher , et al. June 22, 1 | 1993-06-22 |
Method for the determination of the degree of neutralization of phenol Grant 5,124,042 - Bredeweg , et al. June 23, 1 | 1992-06-23 |
Method for on-column injection gas chromatography Grant 4,962,042 - Morabito , et al. October 9, 1 | 1990-10-09 |
Method for the determination of phenols in water Grant 4,913,821 - Melcher , et al. April 3, 1 | 1990-04-03 |
Membrane assisted flow injection analysis Grant 4,819,478 - Melcher April 11, 1 | 1989-04-11 |
Method for membrane assisted liquid chromatography Grant 4,775,476 - Melcher , et al. October 4, 1 | 1988-10-04 |
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