Patents by Inventor Ernest Quan

Ernest Quan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20190091146
    Abstract: A controlled release dosage form containing monomethyl fumarate, a compound that can be metabolized into monomethyl fumarate in vivo, or a pharmaceutically acceptable salt thereof or combinations thereof wherein the monomethyl fumarate, a compound that can be metabolized into monomethyl fumarate in vivo, or a pharmaceutically acceptable salt thereof or combinations thereof is delivered to the subject. Also provided is a method of treating a disease or disorder (e.g., multiple sclerosis) by orally administering a controlled release dosage form containing monomethyl fumarate, a compound that can be metabolized into monomethyl fumarate in vivo, or a pharmaceutically acceptable salt thereof or combinations thereof, wherein the monomethyl fumarate, a compound that can be metabolized into monomethyl fumarate in vivo, or a pharmaceutically acceptable salt thereof or combinations thereof.
    Type: Application
    Filed: November 26, 2018
    Publication date: March 28, 2019
    Applicant: Biogen MA Inc.
    Inventors: Peter Zawaneh, Shyam B. Karki, Michael Kaufman, Cheuk-Yui Leung, Jinquan Dong, Ernest Quan, Kalyan Vasudevan
  • Publication number: 20190008768
    Abstract: A controlled release dosage form containing monomethyl fumarate, a compound that can be metabolized into monomethyl fumarate in vivo, or a pharmaceutically acceptable salt thereof or combinations thereof, wherein the monomethyl fumarate, a compound that can be metabolized into monomethyl fumarate in vivo, or a pharmaceutically acceptable salt thereof or combinations thereof is delivered to the subject. Also provided is a method of treating a disease or disorder (e.g., multiple sclerosis) by orally administering a controlled release dosage form containing monomethyl fumarate, a compound that can be metabolized into monomethyl fumarate in vivo, or a pharmaceutically acceptable salt thereof or combinations thereof, wherein the monomethyl fumarate, a compound that can be metabolized into monomethyl fumarate in vivo, or a pharmaceutically acceptable salt thereof or combinations thereof.
    Type: Application
    Filed: September 14, 2018
    Publication date: January 10, 2019
    Applicant: Biogen MA Inc.
    Inventors: Peter Zawaneh, Shyam B. Karki, Michael Kaufman, Cheuk-Yui Leung, Jinquan Dong, Ernest Quan, Kalyan Vasudevan
  • Patent number: 10172794
    Abstract: A controlled release dosage form containing monomethyl fumarate, a compound that can be metabolized into monomethyl fumarate in vivo, or a pharmaceutically acceptable salt thereof or combinations thereof, wherein the monomethyl fumarate, a compound that can be metabolized into monomethyl fumarate in vivo, or a pharmaceutically acceptable salt thereof or combinations thereof is delivered to the subject. Also provided is a method of treating a disease or disorder (e.g., multiple sclerosis) by orally administering a controlled release dosage form containing monomethyl fumarate, a compound that can be metabolized into monomethyl fumarate in vivo, or a pharmaceutically acceptable salt thereof or combinations thereof, wherein the monomethyl fumarate, a compound that can be metabolized into monomethyl fumarate in vivo, or a pharmaceutically acceptable salt thereof or combinations thereof.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: January 8, 2019
    Assignee: Biogen MA Inc.
    Inventors: Peter Zawaneh, Shyam B. Karki, Michael Kaufman, Cheuk-Yui Leung, Jinquan Dong, Ernest Quan, Kalyan Vasudevan
  • Publication number: 20160310419
    Abstract: A controlled release dosage form containing monomethyl fumarate, a compound that can be metabolized into monomethyl fumarate in vivo, or a pharmaceutically acceptable salt thereof or combinations thereof, wherein the monomethyl fumarate, a compound that can be metabolized into monomethyl fumarate in vivo, or a pharmaceutically acceptable salt thereof or combinations thereof is delivered to the subject. Also provided is a method of treating a disease or disorder (e.g., multiple sclerosis) by orally administering a controlled release dosage form containing monomethyl fumarate, a compound that can be metabolized into monomethyl fumarate in vivo, or a pharmaceutically acceptable salt thereof or combinations thereof, wherein the monomethyl fumarate, a compound that can be metabolized into monomethyl fumarate in vivo, or a pharmaceutically acceptable salt thereof or combinations thereof.
    Type: Application
    Filed: December 12, 2014
    Publication date: October 27, 2016
    Inventors: Peter Zawaneh, Shyam B. Karki, Michael Kaufman, Cheuk-Yui Leung, Jinquan Dong, Ernest Quan, Kalyan Vasudevan
  • Patent number: 7070811
    Abstract: The present invention relates to a dry blend, used for forming azithromycin tablets by direct compression, comprising non-dihydrate azithromycin and at least one pharmaceutically acceptable excipient. This invention also relates to an azithromycin tablet comprising non-dihydrate azithromycin and at least one pharmaceutically acceptable excipient. Preferably, the azithromycin tablet is formed by directly compressing the dry blend, of the present invention, to form said azithromycin tablet. Preferably, the azithromycin tablet, of the present invention, contains a dosage of 250 mgA, 500 mgA or 600 mgA of azithromycin. This invention further relates to an azithromycin tablet which is produced by forming a dry blend of a non-granulated azithromycin form A and at least one pharmaceutically acceptable excipient. The azithromycin tablet is then formed by directly compressing the dry blend.
    Type: Grant
    Filed: July 26, 2005
    Date of Patent: July 4, 2006
    Assignee: Pfizer Inc.
    Inventors: Brendan Murphy, Steven W. Collier, Ernest Quan, Barbara A. Johnson
  • Publication number: 20060024363
    Abstract: The present invention relates to a dry blend, used for forming azithromycin tablets by direct compression, comprising non-dihydrate azithromycin and at least one pharmaceutically acceptable excipient. This invention also relates to an azithromycin tablet comprising non-dihydrate azithromycin and at least one pharmaceutically acceptable excipient. Preferably, the azithromycin tablet is formed by directly compressing the dry blend, of the present invention, to form said azithromycin tablet. Preferably, the azithromycin tablet, of the present invention, contains a dosage of 250 mgA, 500 mgA or 600 mgA of azithromycin. This invention further relates to an azithromycin tablet which is produced by forming a dry blend of a non-granulated azithromycin form A and at least one pharmaceutically acceptable excipient. The azithromycin tablet is then formed by directly compressing the dry blend.
    Type: Application
    Filed: August 26, 2005
    Publication date: February 2, 2006
    Inventors: Brendan Murphy, Steven Collier, Ernest Quan, Barbara Johnson
  • Publication number: 20060024364
    Abstract: The present invention relates to a dry blend, used for forming azithromycin tablets by direct compression, comprising non-dihydrate azithromycin and at least one pharmaceutically acceptable excipient. This invention also relates to an azithromycin tablet comprising non-dihydrate azithromycin and at least one pharmaceutically acceptable excipient. Preferably, the azithromycin tablet is formed by directly compressing the dry blend, of the present invention, to form said azithromycin tablet. Preferably, the azithromycin tablet, of the present invention, contains a dosage of 250 mgA, 500 mgA or 600 mgA of azithromycin. This invention further relates to an azithromycin tablet which is produced by forming a dry blend of a non-granulated azithromycin form A and at least one pharmaceutically acceptable excipient. The azithromycin tablet is then formed by directly compressing the dry blend.
    Type: Application
    Filed: August 26, 2005
    Publication date: February 2, 2006
    Inventors: Brendan Murphy, Steven Collier, Ernest Quan, Barbara Johnson
  • Publication number: 20050287209
    Abstract: The present invention relates to a dry blend, used for forming azithromycin tablets by direct compression, comprising non-dihydrate azithromycin and at least one pharmaceutically acceptable excipient. This invention also relates to an azithromycin tablet comprising non-dihydrate azithromycin and at least one pharmaceutically acceptable excipient. Preferably, the azithromycin tablet is formed by directly compressing the dry blend, of the present invention, to form said azithromycin tablet. Preferably, the azithromycin tablet, of the present invention, contains a dosage of 250 mgA, 500 mgA or 600 mgA of azithromycin. This invention further relates to an azithromycin tablet which is produced by forming a dry blend of a non-granulated azithromycin form A and at least one pharmaceutically acceptable excipient. The azithromycin tablet is then formed by directly compressing the dry blend.
    Type: Application
    Filed: July 26, 2005
    Publication date: December 29, 2005
    Inventors: Brendan Murphy, Steven Collier, Ernest Quan, Barbara Johnson
  • Publication number: 20030165563
    Abstract: The present invention relates to a dry blend, used for forming azithromycin tablets by direct compression, comprising non-dihydrate azithromycin and at least one pharmaceutically acceptable excipient.
    Type: Application
    Filed: December 20, 2002
    Publication date: September 4, 2003
    Applicant: Pfizer Inc.
    Inventors: Brendan Murphy, Steven W. Collier, Ernest Quan, Barbara A. Johnson