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| Number | Title | Issue Date |
| 8058439 | Process for preparing oxycodone having reduced levels of 14-hydroxycodeinone The present invention is directed to processes for preparing oxycodone base and oxycodone hydrochloride compositions having less than 10 ppm of 14-hydroxycodeinone. ... | 11/15/2011 |
| 7906647 | Process for preparing oxycodone having reduced levels of 14-hydroxycodeinone The present invention is directed to processes for preparing oxycodone base and oxycodone hydrochloride compositions having less than 10 ppm of 14-hydroxycodeinone. ... | 03/15/2011 |
| 7625918 | Hydrocodone polymorphs Hydrocodone bitartrate forms are disclosed which are useful as analgesic agents either in combination with or as replacements for hydrocodone bitartrate. ... | 12/01/2009 |
| 7550592 | Hydromorphone polymorphs Hydromorphone hydrochloride forms are disclosed which are useful as analgesic agents either in combination with or as replacements for hydromorphone hydrochloride. ... | 06/23/2009 |
| 7534888 | Oxycodone polymorphs Oxycodone.HCl polymorph forms are disclosed which are useful as analgesic agents either in combination with or as replacements for oxycodone. ... | 05/19/2009 |
| 5107032 | Process for the preparation of o-phthalaldehydes A process for the preparation of o-phthalaldehydes is disclosed comprising the steps of (1) halogenating an o-xylene and (2) hydrolysis of the resulting tetrahalogeno-o-xylene.... | 04/21/1992 |
| 5034551 | Process for recovery of organotin esters from reaction mixtures containing the same and re-use of the recovered organotin compounds A process which comprises extracting 1,3-diacyloxy-1,1,3,3-tetra(hydrocarbyl) distannoxane from a mixture containing 1,3-diacyloxy-1,1,3,3-tetra(hydrocarbyl)distannoxane, a sucrose-6-ester, and polar aprotic solvent, which process comprises the steps... | 07/23/1991 |
| 5023329 | Sucrose-6-ester production process Process which comprises reacting sucrose with a di-(hydrocarbyl)tin oxide in an inert organic reaction vehicle with removal of water for a period of time and at a temperature sufficient to produce a 1,3-di-(6-O-sucrose)-1,1,3,3-tetra(hydrocarbyl)distannox... | 06/11/1991 |
