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).
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Publication number: 20190091146Abstract: 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: ApplicationFiled: November 26, 2018Publication date: March 28, 2019Applicant: Biogen MA Inc.Inventors: Peter Zawaneh, Shyam B. Karki, Michael Kaufman, Cheuk-Yui Leung, Jinquan Dong, Ernest Quan, Kalyan Vasudevan
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Publication number: 20190008768Abstract: 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: ApplicationFiled: September 14, 2018Publication date: January 10, 2019Applicant: Biogen MA Inc.Inventors: Peter Zawaneh, Shyam B. Karki, Michael Kaufman, Cheuk-Yui Leung, Jinquan Dong, Ernest Quan, Kalyan Vasudevan
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Patent number: 10172794Abstract: 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: GrantFiled: December 12, 2014Date of Patent: January 8, 2019Assignee: Biogen MA Inc.Inventors: Peter Zawaneh, Shyam B. Karki, Michael Kaufman, Cheuk-Yui Leung, Jinquan Dong, Ernest Quan, Kalyan Vasudevan
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Publication number: 20160310419Abstract: 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: ApplicationFiled: December 12, 2014Publication date: October 27, 2016Inventors: Peter Zawaneh, Shyam B. Karki, Michael Kaufman, Cheuk-Yui Leung, Jinquan Dong, Ernest Quan, Kalyan Vasudevan
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Patent number: 7070811Abstract: 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: GrantFiled: July 26, 2005Date of Patent: July 4, 2006Assignee: Pfizer Inc.Inventors: Brendan Murphy, Steven W. Collier, Ernest Quan, Barbara A. Johnson
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Publication number: 20060024364Abstract: 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: ApplicationFiled: August 26, 2005Publication date: February 2, 2006Inventors: Brendan Murphy, Steven Collier, Ernest Quan, Barbara Johnson
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Publication number: 20060024363Abstract: 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: ApplicationFiled: August 26, 2005Publication date: February 2, 2006Inventors: Brendan Murphy, Steven Collier, Ernest Quan, Barbara Johnson
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Publication number: 20050287209Abstract: 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: ApplicationFiled: July 26, 2005Publication date: December 29, 2005Inventors: Brendan Murphy, Steven Collier, Ernest Quan, Barbara Johnson
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Publication number: 20030165563Abstract: 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: ApplicationFiled: December 20, 2002Publication date: September 4, 2003Applicant: Pfizer Inc.Inventors: Brendan Murphy, Steven W. Collier, Ernest Quan, Barbara A. Johnson