Ng; John S.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Ng; John S..The latest application filed is for "processes for preparations of 9,11-epoxy steroids and intermediates useful therein".

Company Profile

0.19.22

Ng; John S. - Oak Park CA
Ng; John S. - Chicago IL
Ng; John S. - Thousand Oaks CA
Ng; John S - Chicago IL

*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
Process for the preparation of 5-amino-3H-thiazolo[4,5-d]pyrimidin-2-one Grant 7,781,581 - Wang , et al. August 24, 2	2010-08-24
Processes for preparations of 9,11-epoxy steroids and intermediates useful therein App 20080027237 - Ng; John S. ; et al.	2008-01-31
Aspergillus ochraceus 11 alpha hydroxylase and oxidoreductase Grant 7,238,507 - Bolten , et al. July 3, 2	2007-07-03
Novel process for the preparation of 5-amino-3H-thiazolo[4,5-d]pyrimidin-2-one App 20070117979 - Wang; Tingman ; et al.	2007-05-24
Processes For Preparation Of 9,11 Epoxy Steroids And Intermediates Useful Therein App 20070060746 - Ng; John S. ; et al.	2007-03-15
Method of preparing intermediates useful in synthesis of retroviral protease inhibitors Grant 7,189,864 - Ng , et al. March 13, 2	2007-03-13
Methods of preparing retroviral proteases inhibitor intermediates App 20060270855 - Ng; John S. ; et al.	2006-11-30
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
Method of preparing retroviral protease inhibitor intermediates Grant 7,060,851 - Ng , et al. June 13, 2	2006-06-13
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
Aspergillus ochraceus 11 alpha hydroxylase and oxidoreductase Grant 7,033,807 - Bolten , et al. April 25, 2	2006-04-25
Method for preparing intermediates useful in synthesis of retroviral protease inhibitors Grant 6,974,876 - Ng , et al. December 13, 2	2005-12-13
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
Method of preparing intermediates useful in synthesis of retroviral protease inhibitors App 20050171366 - Ng, John S. ; et al.	2005-08-04
Method of preparing retroviral protease inhibitor intermediates App 20050131075 - Ng, John S. ; et al.	2005-06-16
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
Method of preparing retroviral protease inhibitor intermediates Grant 6,849,760 - Ng , et al. February 1, 2	2005-02-01
Aspergillus ochraceus 11 alpha hydroxylase and oxidoreductase App 20050003473 - Bolten, Suzanne L. ; et al.	2005-01-06
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
Method for preparing intermediates useful in synthesis of retroviral protease inhibitors App 20030225285 - Ng, John S. ; et al.	2003-12-04
Process for the enzymatic resolution of lactams Grant 6,638,758 - Hansen, Jr. , et al. October 28, 2	2003-10-28
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
Method of preparing retroviral protease inhibitor intermediates App 20030171612 - Ng, John S. ; et al.	2003-09-11
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
Aspergillus ochraceus 11 alpha hydroxylase and oxidoreductase App 20030148420 - Suzanne, Bolten L. ; et al.	2003-08-07
Processes for preparation of 9,11-epoxy steroids and intermediates useful therein App 20030100541 - Ng, John S. ; et al.	2003-05-29
Processes for preparation of 9,11-epoxy steroids and intermediates useful therein App 20030055274 - Ng, John S. ; et al.	2003-03-20
Method of preparing intermediates useful in synthesis of retroviral protease inhibitors App 20020161234 - Ng, John S. ; et al.	2002-10-31
Process for preparation of 9,11-epoxy steroids and intermediates useful therein App 20020042507 - Ng, John S. ; et al.	2002-04-11
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
Process for the enzymatic resolution of lactams App 20010055798 - Hansen, Donald W. JR. ; et al.	2001-12-27
Method of preparing retroviral protease inhibitor intermediates App 20010047111 - Ng, John S. ; et al.	2001-11-29
Method and apparatus for preparation of chiral beta amino acids using penicilln G acylase Grant 6,214,609 - Landis , et al. April 10, 2	2001-04-10
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
Method for making intermediates useful in the synthesis of retroviral protease inhibitors Grant 5,648,511 - Ng , et al. July 15, 1	1997-07-15

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