Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9981257 | Metal-ligand catalyst formation | Joan Fraga-Dubreuil, Vinay Medhekar, Thomas A. Micka, Keith Whiston, Colin S. Slaten | 2018-05-29 |
| 9371343 | Nickel metal compositions and nickel complexes derived from basic nickel carbonates | — | 2016-06-21 |
| 9371346 | Preparing a nickel phosphorus ligand complex | — | 2016-06-21 |
| 9024049 | Nickel compositions for preparing nickel metal and nickel complexes | — | 2015-05-05 |
| 8969606 | Calcination and reduction process including a fluidizing bed reactor | Vinay Medhekar, Michael Quinn, Colin S. Slaten | 2015-03-03 |
| 8815186 | Nickel compositions for preparing nickel metal and nickel complexes | — | 2014-08-26 |
| 8101790 | Process for improving adiponitrile quality | Bruce Edwin Murphree | 2012-01-24 |
| 7678906 | Process for making triphenylboron-pyridine compound | — | 2010-03-16 |
| 7517985 | Process for making solid triphenylboron-pyridine or its adduct | Michael L. Jean-Raymond Bourgeois | 2009-04-14 |
| 7468119 | Separation of 6-aminocapronitrile and hexamethylenediamine from a mixture comprising hexamethylenediamine, 6-aminocapronitrile and tetrahydroazepine | — | 2008-12-23 |
| 7390897 | Method for making caprolactam from impure 6-aminocapronitrile | Alan Martin Allgeier, Sourav Kumar Sengupta | 2008-06-24 |
| 7208632 | Separation of 6-aminocapronitrile and hexamethylenediamine from a mixture comprising hexamethylenediamine, 6-aminocapronitrile and tetrahydroazepine | — | 2007-04-24 |
| 7060820 | Process for making caprolactam | Sourav Kumar Sengupta, Gregory S. Kirby | 2006-06-13 |
| 7060819 | Process for producing hexamethylenediamine and aminocapronitrile from adiponitrile, wherein the hexamethylenediamine contains less than 100 ppm tetrahydroazepine | Alan Martin Allgeier | 2006-06-13 |
| 6887352 | Distillative method for separating hexamethylenediamine from a mixture comprising hexamethylenediamine, 6-aminocapronitrile and tetrahydroazepine | — | 2005-05-03 |
| 6858728 | Method for making caprolactam from impure ACN in which THA is not removed until after caprolactam is produced | Gregory S. Kirby | 2005-02-22 |
| 6716977 | Method for making caprolactam from impure ACN wherein ammonia and water are removed from crude caprolactam in a simple separation step and then THA is removed from the resulting caprolactam melt | Gregory S. Kirby | 2004-04-06 |
| 6599398 | Recovery of adiponitrile from a mixture of adiponitrile, aminocapronitrile and hexamethylenediamine | Leon S. Scott, James D. Hastings | 2003-07-29 |
| 6461481 | Process for removing water from organoborane compounds | Willie Jon Barnette, Bruce Edwin Murphree | 2002-10-08 |
| 6331651 | Process for making hexamethylene diamine using ozone-treated adiponitrile that contains phosphorous compounds | — | 2001-12-18 |
| 6248926 | Recovery of hexamethylenediamine (HMD) with low polarographically reducible impurities (PRI) from mixtures of HMD, aminocapronitirle and PRI | Leon S. Scott | 2001-06-19 |
| 5961788 | Sequential distillation process for removing tetrahydroazepine from aminocapronitrile and/or hexamethylenediamine | — | 1999-10-05 |
| 5892122 | Method for making cyclohexanol and cyclohexanone | George Crumbaugh Russell, III | 1999-04-06 |
| 5312959 | Purification of 2-methylglutaronitrile or adiponitrile | James B. Sieja | 1994-05-17 |
| 4749801 | [Hexakis(pentenenitrilo)nickel II]bis-[.mu.-(cyano) bis(triphenylborane) (I)], its method of preparation and its use | Richard P. Beatty | 1988-06-07 |