Sing; Yuen-Lung L.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Sing; Yuen-Lung L..The latest application filed is for "eplerenone drug substance having high phase purity".

Company Profile

0.9.18

Sing; Yuen-Lung L. - St. Louis MO

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Eplerenone Drug Substance Having High Phase Purity App 20090149431 - Barton; Kathleen P. ; et al.	2009-06-11
Processes for preparations of 9,11-epoxy steroids and intermediates useful therein App 20080027237 - Ng; John S. ; et al.	2008-01-31
Processes For Preparation Of 9,11 Epoxy Steroids And Intermediates Useful Therein App 20070060746 - Ng; John S. ; et al.	2007-03-15
Keto-substituted steroid compounds Grant 7,129,345 - Ng , et al. October 31, 2	2006-10-31
Processes for preparation of 9,11-epoxy steroids and intermediates useful therein Grant 7,112,669 - Ng , et al. September 26, 2	2006-09-26
Process for preparation of 9, 11-epoxy steroids and intermediates useful therein Grant 7,038,040 - Ng , et al. May 2, 2	2006-05-02
Eplerenone crystalline form exhibiting enhanced dissolution rate App 20050267302 - Barton, Kathleen P. ; et al.	2005-12-01
Eplerenone drug substance having high phase purity App 20050261261 - Barton, Kathleen P. ; et al.	2005-11-24
Processes for preparation of 9, 11-epoxy steroids and intermediates useful therein App 20050256094 - Ng, John S. ; et al.	2005-11-17
Processes for preparation of 9,11-epoxy steroids and intermediates useful therein App 20050239761 - Ng, John S. ; et al.	2005-10-27
Processes for preparation of 9,11-epoxy steroids and intermediates useful therein Grant 6,953,851 - Ng , et al. October 11, 2	2005-10-11
Eplerenone crystal form exhibiting enhanced dissolution rate App 20050159594 - Barton, Kathleen P. ; et al.	2005-07-21
Processes for preparation of 9, 11-epoxy steroids and intermediates useful therein Grant 6,887,991 - Ng , et al. May 3, 2	2005-05-03
Process for preparation of 9, 11-epoxy steroids and intermediates useful therein App 20040191874 - Ng, John S. ; et al.	2004-09-30
Processes for preparation of 9, 11-epoxy steroids and intermediates useful therein App 20040067917 - Ng, John S. ; et al.	2004-04-08
Processes for preparation of 9,11-epoxy steroids and intermediates useful therein Grant 6,630,587 - Ng , et al. October 7, 2	2003-10-07
Processes for preparation of 9,11-epoxy steroids and intermediates useful therein Grant 6,610,844 - Ng , et al. August 26, 2	2003-08-26
Processes for preparation of 9,11-epoxy steroids and intermediates useful therein App 20030100541 - Ng, John S. ; et al.	2003-05-29
Eplerenone drug substance having high phase purity App 20030083493 - Barton, Kathleen P. ; et al.	2003-05-01
Processes for preparation of 9,11-epoxy steroids and intermediates useful therein App 20030055274 - Ng, John S. ; et al.	2003-03-20
Eplerenone crystalline form App 20020045746 - Barton, Kathleen P. ; et al.	2002-04-18
Process for preparation of 9,11-epoxy steroids and intermediates useful therein App 20020042507 - Ng, John S. ; et al.	2002-04-11
Eplerenone crystalline form exhibiting enhanced dissolution rate App 20020038021 - Barton, Kathleen P. ; et al.	2002-03-28
Processes for preparation of 9-11, epoxy steroids and intermediates useful therein App 20020019522 - Ng, John S. ; et al.	2002-02-14
Processes for preparation of 9,11- epoxy steroids and intermediates useful therein App 20020016455 - Ng, John S. ; et al.	2002-02-07
5.beta.-cyano-substituted steroid compounds Grant 6,335,441 - Ng , et al. January 1, 2	2002-01-01
Processes for preparation of 9,11-epoxy steroids and intermediates useful therein Grant 5,981,744 - Ng , et al. November 9, 1	1999-11-09

uspto.report is an independent third-party trademark research tool that is not affiliated, endorsed, or sponsored by the United States Patent and Trademark Office (USPTO) or any other governmental organization. The information provided by uspto.report is based on publicly available data at the time of writing and is intended for informational purposes only.

While we strive to provide accurate and up-to-date information, we do not guarantee the accuracy, completeness, reliability, or suitability of the information displayed on this site. The use of this site is at your own risk. Any reliance you place on such information is therefore strictly at your own risk.

All official trademark data, including owner information, should be verified by visiting the official USPTO website at www.uspto.gov. This site is not intended to replace professional legal advice and should not be used as a substitute for consulting with a legal professional who is knowledgeable about trademark law.