Patents by Inventor Rupal A. Ayer

Rupal A. Ayer 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: 20170348392
    Abstract: A nonaqueous, single-phase vehicle that is capable of suspending an active agent. The nonaqueous, single-phase vehicle includes at least one solvent and at least one polymer and is formulated to exhibit phase separation upon contact with an aqueous environment. The at least one solvent may be selected from the group consisting of benzyl benzoate, decanol, ethyl hexyl lactate, and mixtures thereof and the at least one polymer may be selected from the group consisting of a polyester, pyrrolidone, ester of an unsaturated alcohol, ether of an unsaturated alcohol, polyoxyethylenepolyoxypropylene block copolymer, and mixtures thereof. In one embodiment, the at least one solvent is benzyl benzoate and the at least one polymer is polyvinylpyrrolidone. A stable, nonaqueous suspension formulation that includes the nonaqueous, single-phase vehicle and an active agent, and a method of forming the same, are also disclosed.
    Type: Application
    Filed: June 19, 2017
    Publication date: December 7, 2017
    Inventors: Catherine M. ROHLOFF, Guohua CHEN, Andrew S. LUK, Rupal A. Ayer, Paul R. Houston, Michael A. Desjardin, Pauline Zamora, Stan Lam
  • Publication number: 20170056476
    Abstract: A nonaqueous, single-phase vehicle that is capable of suspending an active agent. The nonaqueous, single-phase vehicle includes at least one solvent and at least one polymer and is formulated to exhibit phase separation upon contact with an aqueous environment. The at least one solvent may be selected from the group consisting of benzyl benzoate, decanol, ethyl hexyl lactate, and mixtures thereof and the at least one polymer may be selected from the group consisting of a polyester, pryyolidone, ester of an unsaturated alcohol, ether of an unsaturated alcohol, polyoxyethylenepolyoxypropylene block copolymer, and mixtures thereof. In one embodiment, the at least one solvent is benzyl benzoate and the at least one polymer is polyvinylpyrrolidone. A stable, nonaqueous suspension formulation that includes the nonaqueous, single-phase vehicle and an active agent, and a method of forming the same, are also disclosed.
    Type: Application
    Filed: November 1, 2016
    Publication date: March 2, 2017
    Inventors: Catherine M. ROHLOFF, Guohua CHEN, Andrew S. LUK, Rupal A. Ayer, Paul R. Houston, Michael A. Desjardin, Pauline Zamora, Stan Lam
  • Patent number: 9526763
    Abstract: A nonaqueous, single-phase vehicle that is capable of suspending an active agent. The nonaqueous, single-phase vehicle includes at least one solvent and at least one polymer and is formulated to exhibit phase separation upon contact with an aqueous environment. The at least one solvent may be selected from the group consisting of benzyl benzoate, decanol, ethyl hexyl lactate, and mixtures thereof and the at least one polymer may be selected from the group consisting of a polyester, pyrrolidone, ester of an unsaturated alcohol, ether of an unsaturated alcohol, polyoxyethylenepolyoxypropylene block copolymer, and mixtures thereof. In one embodiment, the at least one solvent is benzyl benzoate and the at least one polymer is polyvinylpyrrolidone. A stable, nonaqueous suspension formulation that includes the nonaqueous, single-phase vehicle and an active agent, and a method of forming the same, are also disclosed.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: December 27, 2016
    Assignee: Intarcia Therapeutics Inc.
    Inventors: Catherine M. Rohloff, Guohua Chen, Andrew S. Luk, Rupal A. Ayer, Paul R. Houston, Michael A. Desjardin, Pauline Zamora, Stan Lam
  • Publication number: 20150290291
    Abstract: A nonaqueous, single-phase vehicle that is capable of suspending an active agent. The nonaqueous, single-phase vehicle includes at least one solvent and at least one polymer and is formulated to exhibit phase separation upon contact with an aqueous environment. The at least one solvent may be selected from the group consisting of benzyl benzoate, decanol, ethyl hexyl lactate, and mixtures thereof and the at least one polymer may be selected from the group consisting of a polyester, pyrrolidone, ester of an unsaturated alcohol, other of an unsaturated alcohol, polyoxyethylenepolyoxypropylene block copolymer, and mixtures thereof. In one embodiment, the at least one solvent is benzyl benzoate and the at least one polymer is polyvinylpyrrolidone. A stable, nonaqueous suspension formulation that includes the nonaqueous, single-phase vehicle and an active agent, and a method of forming the same, are also disclosed.
    Type: Application
    Filed: June 24, 2015
    Publication date: October 15, 2015
    Inventors: Catherine M. ROHLOFF, Guohua CHEN, Andrew S. LUK, Rupal A. Ayer, Paul R. Houston, Michael A. Desjardin, Pauline Zamora, Stan Lam
  • Patent number: 9095553
    Abstract: A nonaqueous, single-phase vehicle that is capable of suspending an active agent. The nonaqueous, single-phase vehicle includes at least one solvent and at least one polymer and is formulated to exhibit phase separation upon contact with an aqueous environment. The at least one solvent may be selected from the group consisting of benzyl benzoate, decanol, ethyl hexyl lactate, and mixtures thereof and the at least one polymer may be selected from the group consisting of a polyester, pyrrolidone, ester of an unsaturated alcohol, ether of an unsaturated alcohol, polyoxyethylenepolyoxypropylene block copolymer, and mixtures thereof. In one embodiment, the at least one solvent is benzyl benzoate and the at least one polymer is polyvinylpyrrolidone. A stable, nonaqueous suspension formulation that includes the nonaqueous, single-phase vehicle and an active agent, and a method of forming the same, are also disclosed.
    Type: Grant
    Filed: October 9, 2012
    Date of Patent: August 4, 2015
    Assignee: Intarcia Therapeutics Inc.
    Inventors: Catherine M. Rohloff, Guohua Chen, Andrew S. Luk, Rupal A. Ayer, Paul R. Houston, Michael A. Desjardin, Pauline Zamora, Stan Lam
  • Patent number: 8460694
    Abstract: A nonaqueous, single-phase vehicle that is capable of suspending an active agent. The nonaqueous, single-phase vehicle includes at least one solvent and at least one polymer and is formulated to exhibit phase separation upon contact with an aqueous environment. The at least one solvent may be selected from the group consisting of benzyl benzoate, decanol, ethyl hexyl lactate, and mixtures thereof and the at least one polymer may be selected from the group consisting of a polyester, pyrrolidone, ester of an unsaturated alcohol, ether of an unsaturated alcohol, polyoxyethylenepolyoxypropylene block copolymer, and mixtures thereof. In one embodiment, the at least one solvent is benzyl benzoate and the at least one polymer is polyvinylpyrrolidone. A stable, nonaqueous suspension formulation that includes the nonaqueous, single-phase vehicle and an active agent, and a method of forming the same, are also disclosed.
    Type: Grant
    Filed: October 8, 2012
    Date of Patent: June 11, 2013
    Assignee: Intarcia Therapeutics, Inc.
    Inventors: Catherine M. Rohloff, Guohua Chen, Andrew S. Luk, Rupal A. Ayer, Paul R. Houston, Michael A. Desjardin, Pauline Zamora, Stan Lam
  • Patent number: 8440226
    Abstract: A nonaqueous, single-phase vehicle that is capable of suspending an active agent. The nonaqueous, single-phase vehicle includes at least one solvent and at least one polymer and is formulated to exhibit phase separation upon contact with an aqueous environment. The at least one solvent may be selected from the group consisting of benzyl benzoate, decanol, ethyl hexyl lactate, and mixtures thereof and the at least one polymer may be selected from the group consisting of a polyester, pyrrolidone, ester of an unsaturated alcohol, ether of an unsaturated alcohol, polyoxyethylenepolyoxypropylene block copolymer, and mixtures thereof. In one embodiment, the at least one solvent is benzyl benzoate and the at least one polymer is polyvinylpyrrolidone. A stable, nonaqueous suspension formulation that includes the nonaqueous, single-phase vehicle and an active agent, and a method of forming the same, are also disclosed.
    Type: Grant
    Filed: June 18, 2012
    Date of Patent: May 14, 2013
    Assignee: Intarcia Therapeutics, Inc.
    Inventors: Catherine M. Rohloff, Guohua Chen, Andrew S. Luk, Rupal A. Ayer, Paul R. Houston, Michael A. Desjardin, Pauline Zamora, Stan Lam
  • Publication number: 20130035670
    Abstract: A nonaqueous, single-phase vehicle that is capable of suspending an active agent. The nonaqueous, single-phase vehicle includes at least one solvent and at least one polymer and is formulated to exhibit phase separation upon contact with an aqueous environment. The at least one solvent may be selected from the group consisting of benzyl benzoate, decanol, ethyl hexyl lactate, and mixtures thereof and the at least one polymer may be selected from the group consisting of a polyester, pyrrolidone, ester of an unsaturated alcohol, ether of an unsaturated alcohol, polyoxyethylenepolyoxypropylene block copolymer, and mixtures thereof. In one embodiment, the at least one solvent is benzyl benzoate and the at least one polymer is polyvinylpyrrolidone. A stable, nonaqueous suspension formulation that includes the nonaqueous, single-phase vehicle and an active agent, and a method of forming the same, are also disclosed.
    Type: Application
    Filed: October 8, 2012
    Publication date: February 7, 2013
    Applicant: INTARCIA THERAPEUTICS, INC.
    Inventors: Catherine M. Rohloff, Guohua Chen, Andrew S. Luk, Rupal A. Ayer, Paul R. Houston, Michael A. Desjardin, Pauline Zamora, Stan Lam
  • Publication number: 20130034210
    Abstract: A nonaqueous, single-phase vehicle that is capable of suspending an active agent. The nonaqueous, single-phase vehicle includes at least one solvent and at least one polymer and is formulated to exhibit phase separation upon contact with an aqueous environment. The at least one solvent may be selected from the group consisting of benzyl benzoate, decanol, ethyl hexyl lactate, and mixtures thereof and the at least one polymer may be selected from the group consisting of a polyester, pyrrolidone, ester of an unsaturated alcohol, ether of an unsaturated alcohol, polyoxyethylenepolyoxypropylene block copolymer, and mixtures thereof. In one embodiment, the at least one solvent is benzyl benzoate and the at least one polymer is polyvinylpyrrolidone. A stable, nonaqueous suspension formulation that includes the nonaqueous, single-phase vehicle and an active agent, and a method of forming the same, are also disclosed.
    Type: Application
    Filed: October 9, 2012
    Publication date: February 7, 2013
    Applicant: Intarcia Therapeutics, Inc.
    Inventors: Catherine M. Rohloff, Guohua Chen, Andrew S. Luk, Rupal A. Ayer, Paul R. Houston, Michael A. Desjardin, Pauline Zamora, Stan Lam
  • Publication number: 20120259318
    Abstract: A nonaqueous, single-phase vehicle that is capable of suspending an active agent. The nonaqueous, single-phase vehicle includes at least one solvent and at least one polymer and is formulated to exhibit phase separation upon contact with an aqueous environment. The at least one solvent may be selected from the group consisting of benzyl benzoate, decanol, ethyl hexyl lactate, and mixtures thereof and the at least one polymer may be selected from the group consisting of a polyester, pyrrolidone, ester of an unsaturated alcohol, ether of an unsaturated alcohol, polyoxyethylenepolyoxypropylene block copolymer, and mixtures thereof. In one embodiment, the at least one solvent is benzyl benzoate and the at least one polymer is polyvinylpyrrolidone. A stable, nonaqueous suspension formulation that includes the nonaqueous, single-phase vehicle and an active agent, and a method of forming the same, are also disclosed.
    Type: Application
    Filed: June 18, 2012
    Publication date: October 11, 2012
    Applicant: INTARCIA THERAPEUTICS, INC.
    Inventors: Catherine M. Rohloff, Guohua Chen, Andrew S. Luk, Rupal A. Ayer, Paul R. Houston, Michael A. Desjardin, Pauline Zamora, Stan Lam
  • Patent number: 8211467
    Abstract: A nonaqueous, single-phase vehicle that is capable of suspending an active agent. The nonaqueous, single-phase vehicle includes at least one solvent and at least one polymer and is formulated to exhibit phase separation upon contact with an aqueous environment. The at least one solvent may be selected from the group consisting of benzyl benzoate, decanol, ethyl hexyl lactate, and mixtures thereof and the at least one polymer may be selected from the group consisting of a polyester, pyrrolidone, ester of an unsaturated alcohol, ether of an unsaturated alcohol, polyoxyethylenepolyoxypropylene block copolymer, and mixtures thereof. In one embodiment, the at least one solvent is benzyl benzoate and the at least one polymer is polyvinylpyrrolidone. A stable, nonaqueous suspension formulation that includes the nonaqueous, single-phase vehicle and an active agent, and a method of forming the same, are also disclosed.
    Type: Grant
    Filed: November 1, 2010
    Date of Patent: July 3, 2012
    Assignee: Intarcia Therapeutics, Inc.
    Inventors: Catherine M. Rohloff, Guohua Chen, Andrew S. Luk, Rupal A. Ayer, Paul R. Houston, Michael A. Desjardin, Pauline Zamora, Stan Lam
  • Patent number: 8206745
    Abstract: A nonaqueous, single-phase vehicle that is capable of suspending an active agent. The nonaqueous, single-phase vehicle includes at least one solvent and at least one polymer and is formulated to exhibit phase separation upon contact with an aqueous environment. The at least one solvent may be selected from the group consisting of benzyl benzoate, decanol, ethyl hexyl lactate, and mixtures thereof and the at least one polymer may be selected from the group consisting of a polyester, pyrrolidone, ester of an unsaturated alcohol, ether of an unsaturated alcohol, polyoxyethylenepolyoxypropylene block copolymer, and mixtures thereof. In one embodiment, the at least one solvent is benzyl benzoate and the at least one polymer is polyvinylpyrrolidone. A stable, nonaqueous suspension formulation that includes the nonaqueous, single-phase vehicle and an active agent, and a method of forming the same, are also disclosed.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: June 26, 2012
    Assignee: Intarcia Therapeutics, Inc.
    Inventors: Catherine M. Rohloff, Guohua Chen, Andrew S. Luk, Rupal A. Ayer, Paul R. Houston, Michael A. Desjardin, Pauline Zamora, Stan Lam
  • Patent number: 8114437
    Abstract: A nonaqueous, single-phase vehicle that is capable of suspending an active agent. The nonaqueous, single-phase vehicle includes at least one solvent and at least one polymer and is formulated to exhibit phase separation upon contact with an aqueous environment. The at least one solvent may be selected from the group consisting of benzyl benzoate, decanol, ethyl hexyl lactate, and mixtures thereof and the at least one polymer may be selected from the group consisting of a polyester, pyrrolidone, ester of an unsaturated alcohol, ether of an unsaturated alcohol, polyoxyethylenepolyoxypropylene block copolymer, and mixtures thereof. In one embodiment, the at least one solvent is benzyl benzoate and the at least one polymer is polyvinylpyrrolidone. A stable, nonaqueous suspension formulation that includes the nonaqueous, single-phase vehicle and an active agent, and a method of forming the same, are also disclosed.
    Type: Grant
    Filed: February 3, 2006
    Date of Patent: February 14, 2012
    Assignee: Intarcia Therapeutics, Inc.
    Inventors: Catherine M. Rohloff, Guohua Chen, Andrew S. Luk, Rupal A. Ayer, Paul R. Houston, Michael A. Desjardin, Pauline Zamora, Stan Lam
  • Publication number: 20110264077
    Abstract: A nonaqueous, single-phase vehicle that is capable of suspending an active agent. The nonaqueous, single-phase vehicle includes at least one solvent and at least one polymer and is formulated to exhibit phase separation upon contact with an aqueous environment. The at least one solvent may be selected from the group consisting of benzyl benzoate, decanol, ethyl hexyl lactate, and mixtures thereof and the at least one polymer may be selected from the group consisting of a polyester, pyrrolidone, ester of an unsaturated alcohol, ether of an unsaturated alcohol, polyoxyethylenepolyoxypropylene block copolymer, and mixtures thereof. In one embodiment, the at least one solvent is benzyl benzoate and the at least one polymer is polyvinylpyrrolidone. A stable, nonaqueous suspension formulation that includes the nonaqueous, single-phase vehicle and an active agent, and a method of forming the same, are also disclosed.
    Type: Application
    Filed: June 10, 2011
    Publication date: October 27, 2011
    Inventors: Catherine M. Rohloff, Guohua Chen, Andrew S. Luk, Rupal A. Ayer, Paul R. Houston, Michael A. Desjardin, Pauline Zamora, Stan Lam
  • Publication number: 20110104111
    Abstract: A nonaqueous, single-phase vehicle that is capable of suspending an active agent. The nonaqueous, single-phase vehicle includes at least one solvent and at least one polymer and is formulated to exhibit phase separation upon contact with an aqueous environment. The at least one solvent may be selected from the group consisting of benzyl benzoate, decanol, ethyl hexyl lactate, and mixtures thereof and the at least one polymer may be selected from the group consisting of a polyester, pyrrolidone, ester of an unsaturated alcohol, ether of an unsaturated alcohol, polyoxyethylenepolyoxypropylene block copolymer, and mixtures thereof. In one embodiment, the at least one solvent is benzyl benzoate and the at least one polymer is polyvinylpyrrolidone. A stable, nonaqueous suspension formulation that includes the nonaqueous, single-phase vehicle and an active agent, and a method of forming the same, are also disclosed.
    Type: Application
    Filed: November 1, 2010
    Publication date: May 5, 2011
    Inventors: Catherine M. Rohloff, Guohua Chen, Andrew S. Luk, Rupal A. Ayer, Paul R. Houston, Michael A. Desjardin, Pauline Zamora, Stan Lam
  • Publication number: 20100297209
    Abstract: A nonaqueous, single-phase vehicle that is capable of suspending an active agent. The nonaqueous, single-phase vehicle includes at least one solvent and at least one polymer and is formulated to exhibit phase separation upon contact with an aqueous environment. The at least one solvent may be selected from the group consisting of benzyl benzoate, decanol, ethyl hexyl lactate, and mixtures thereof and the at least one polymer may be selected from the group consisting of a polyester, pyrrolidone, ester of an unsaturated alcohol, ether of an unsaturated alcohol, polyoxyethylenepolyoxypropylene block copolymer, and mixtures thereof. In one embodiment, the at least one solvent is benzyl benzoate and the at least one polymer is polyvinylpyrrolidone. A stable, nonaqueous suspension formulation that includes the nonaqueous, single-phase vehicle and an active agent, and a method of forming the same, are also disclosed.
    Type: Application
    Filed: June 30, 2010
    Publication date: November 25, 2010
    Inventors: Catherine M. ROHLOFF, Guohua Chen, Andrew S. Luk, Rupal A. Ayer, Paul R. Houston, Michael A. Desjardin, Pauline Zamora, Stan Lam
  • Patent number: 7241457
    Abstract: In one aspect, the present invention is directed to an osmotic pump that automatically provides an ascending release rate of active agent as the osmotic pump functions in an environment of operation and may be designed for implantation within a desired animal or human subject. An osmotic pump according to the present invention includes a reservoir, a rate controlling membrane, an expandable osmotic composition, an active agent formulation and an exit orifice. Once administered to an environment of operation, water passes through the rate controlling membrane and into the osmotic composition, which causes the osmotic composition to expand and expel the active agent formulation through the exit orifice at a rate that is directly proportional to the rate at which water passes through the rate controlling membrane.
    Type: Grant
    Filed: September 29, 2004
    Date of Patent: July 10, 2007
    Assignee: Alza Corporation
    Inventors: Guohua Chen, Rupal A. Ayer, Scott Lautenbach