Patents by Inventor Guillermo Ameer

Guillermo Ameer 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: 20130287682
    Abstract: The present invention is directed to a novel poly (diol citrates)-based coating for implantable devices. More specifically, the specification describes methods and compositions for making and using implantable devices coated with citric acid copolymers or citric acid copolymers impregnated with therapeutic compositions and/or cells.
    Type: Application
    Filed: March 21, 2013
    Publication date: October 31, 2013
    Inventors: Guillermo Ameer, Jian Yang
  • Patent number: 8568765
    Abstract: The present invention is directed to a novel poly (diol citrates)-based bioceramic composite materials created using completely biodegradable and a bioceramic material polymers that may be used in implantable devices. More specifically, the specification describes methods and compositions for making and using bioceramic composites comprised of citric acid copolymers and a bioceramic material.
    Type: Grant
    Filed: December 1, 2011
    Date of Patent: October 29, 2013
    Assignee: Northwestern University
    Inventors: Guillermo Ameer, Hongjin Qiu, Jian Yang
  • Publication number: 20130211500
    Abstract: Disclosed are liquid cast biodegradable arterial stents and methods for preparing liquid cast biodegradable arterial stents. The typically includes a biodegradable polymer and may include an agent for treating neointimal hyperplasia.
    Type: Application
    Filed: April 14, 2011
    Publication date: August 15, 2013
    Applicant: NORTHWESTERN UNIVERSITY
    Inventors: Melina R. Kibbe, Guillermo A. Ameer
  • Publication number: 20130195828
    Abstract: Disclosed are pharmaceutical compositions and methods for digesting atherosclerotic plaques in a patient in need thereof. The compositions include and the methods utilize a mixture of collagenases for digesting plaques and optionally may include or utilize additional agents such as cyclodextrins, chelating agents, and tissue plasminogen activator.
    Type: Application
    Filed: April 14, 2011
    Publication date: August 1, 2013
    Applicant: NORTHWESTERN UNIVERSITY
    Inventors: Melina R. Kibbe, Guillermo A. Ameer, Vinit N. Varu
  • Patent number: 8404264
    Abstract: The present invention is directed to a novel poly (diol citrates)-based coating for implantable devices. More specifically, the specification describes methods and compositions for making and using implantable devices coated with citric acid copolymers or citric acid copolymers impregnated with therapeutic compositions and/or cells.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: March 26, 2013
    Assignee: Northwestern University
    Inventors: Guillermo Ameer, Jian Yang
  • Publication number: 20120322155
    Abstract: The present invention is directed to a novel biocompatible polymer that may be used in tissue engineering. More specifically, the specification describes methods and compositions for making and using a citric acid copolymers.
    Type: Application
    Filed: August 28, 2012
    Publication date: December 20, 2012
    Applicant: NORTHWESTERN UNIVERSITY
    Inventors: Guillermo Ameer, Jian Yang, Antonio Roy Webb
  • Publication number: 20120237443
    Abstract: The present invention is directed to a novel poly (diol citrates)-based coating for implantable devices. More specifically, the specification describes methods and compositions for making and using implantable devices coated with citric acid copolymers or citric acid copolymers impregnated with therapeutic compositions and/or cells.
    Type: Application
    Filed: December 6, 2011
    Publication date: September 20, 2012
    Applicant: Northwestern University
    Inventors: Guillermo Ameer, Jian Yang
  • Publication number: 20120225972
    Abstract: The present invention is directed to a novel poly (diol citrates)-based bioceramic composite materials created using completely biodegradable and a bioceramic material polymers that may be used in implantable devices. More specifically, the specification describes methods and compositions for making and using bioceramic composites comprised of citric acid copolymers and a bioceramic material.
    Type: Application
    Filed: December 1, 2011
    Publication date: September 6, 2012
    Applicant: NORTHWESTERN UNIVERSITY
    Inventors: Guillermo Ameer, Hongjin Qiu, Jian Yang
  • Publication number: 20110082421
    Abstract: The invention discloses compositions of matter and methods of using such compositions to detoxify blood and blood products. The invention as particular use in the treatment of diabetes, Alzheimer's disease, hemodialysis associated amyloidosis, and cardiovascular complications.
    Type: Application
    Filed: February 7, 2007
    Publication date: April 7, 2011
    Inventors: Guillermo A. Ameer, Cynthia M. Daniels, Stuart M. Sprague
  • Publication number: 20110071079
    Abstract: The present invention can be directed to poly(diol-citrate)-based copolymers, compositions thereof comprising protein components and methods of use and assembly.
    Type: Application
    Filed: September 21, 2010
    Publication date: March 24, 2011
    Inventors: Guillermo Ameer, Haichao Zhao
  • Patent number: 7722894
    Abstract: A biodegradable polymer comprising a condensation polymer of glycerol and a diacid. The polymer may be adapted for use as a tissue engineering construct. For example, it may be seeded with cells or molecules may be attached to it to modify the metabolism and proliferation of cells or to modify the degradation rate and/or mechanism of the polymer. The polymer may also be exploited in a variety of medical and non-medical applications.
    Type: Grant
    Filed: October 21, 2002
    Date of Patent: May 25, 2010
    Assignee: Massachusetts Institute of Technology
    Inventors: Yadong Wang, Guillermo Ameer, Robert Langer
  • Publication number: 20100076162
    Abstract: Disclosed herein is a biodegradable nitric oxide-generating polymer comprising a nitric oxide-releasing N2O2? (NONOate) functional group. The polymer can be applied to various medical devices for the treatment of various diseases such as thrombosis and restenosis.
    Type: Application
    Filed: September 21, 2009
    Publication date: March 25, 2010
    Inventors: Guillermo Ameer, Melina Kibbe, Haichao Zhao
  • Publication number: 20100036476
    Abstract: Controlled release vascular implants, such as vascular grafts, stents, wraps, and gels comprising a biocompatible polymer and all trans retinoic acid (ATRA), or its derivatives, can be used to treat, prevent, or inhibit thrombosis and/or neointimal hyperplasia which may otherwise be induced by prosthetic implantation. In particular, the implants herein can inhibit smooth muscle cell proliferation, neointimal hyperplasia, and upregulate antithrombotic genes and nitric oxide production in the vasculature. Further, the implants are capable of delivering controlled and predictable localized concentrations of ATRA.
    Type: Application
    Filed: July 2, 2009
    Publication date: February 11, 2010
    Inventors: Guillermo A. Ameer, Melina Kibbe, Antonio Webb
  • Publication number: 20100034897
    Abstract: The present invention relates to the use of immobilized RAGE or portions thereof for removal of heparin and low molecular weight heparin from a fluid sample or from a patient in need of neutralization of anticoagulant activity. The invention provides a method for removal or inactivation of heparin and low molecular weight heparin, as well as a device which utilizes this method.
    Type: Application
    Filed: July 20, 2009
    Publication date: February 11, 2010
    Applicant: NORTHWESTERN UNIVERSITY
    Inventors: Guillermo A. Ameer, Yangrong Zhang
  • Publication number: 20090325859
    Abstract: The present invention provides polymers (e.g., elastomeric citric acid polymers) and methods of making and using these polymers (e.g., as a biologically active molecule delivery platform). In certain embodiments, the polymer has adsorbed biologically active molecules. In particular embodiments, the polymer comprises pores that are between about 7 and 15 nanometers in diameter. In other embodiments, the polymer comprises poly(1,8 octanediol-co-ctric acid). In certain embodiments, the polymers are made by employing polyethylene glycol dimethyl ether (PEGDM).
    Type: Application
    Filed: June 19, 2009
    Publication date: December 31, 2009
    Applicant: NORTHWESTERN UNIVERSITY
    Inventors: Guillermo Ameer, Jian Yang, Ryan Hoshi
  • Publication number: 20090148945
    Abstract: The present invention is directed to a novel biocompatible polymer that may be used in tissue engineering. More specifically, the specification describes methods and compositions for making and using a citric acid copolymers.
    Type: Application
    Filed: February 12, 2009
    Publication date: June 11, 2009
    Applicant: NORTHWESTERN UNIVERSITY
    Inventors: Guillermo Ameer, Jian Yang, Antonio Webb
  • Publication number: 20070224245
    Abstract: The present invention is directed to a novel poly (diol citrates)-based bioceramic composite materials created using completely biodegradable and a bioceramic material polymers that may be used in implantable devices. More specifically, the specification describes methods and compositions for making and using bioceramic composites comprised of citric acid copolymers and a bioceramic material.
    Type: Application
    Filed: February 8, 2007
    Publication date: September 27, 2007
    Applicant: NORTHWESTERN UNIVERSITY
    Inventors: Guillermo Ameer, Hongjin Qiu, Jian Yang
  • Publication number: 20070208420
    Abstract: The present invention is directed to a novel poly(diol citrates)-based coating for implantable devices. More specifically, the specification describes methods and compositions for making and using implantable devices coated with citric acid copolymers or citric acid copolymers impregnated with therapeutic compositions and/or cells.
    Type: Application
    Filed: February 8, 2007
    Publication date: September 6, 2007
    Applicant: NORTHWESTERN UNIVERSITY
    Inventors: Guillermo Ameer, Jian Yang
  • Publication number: 20070071790
    Abstract: The present invention is directed to a novel poly(diol citrates)-based nanocomposite materials created using completely biodegradable and biocompatible polymers that may be used in tissue engineering. More specifically, the specification describes methods and compositions for making and using nanocomposites comprised of citric acid copolymers and polymers including but not limited to poly(L-lactic acid) (PLLA) and poly(lactic-co-glycolic acid) (PLGA).
    Type: Application
    Filed: September 28, 2006
    Publication date: March 29, 2007
    Applicant: NORTHWESTERN UNIVERSITY
    Inventors: Guillermo Ameer, Antonio Webb
  • Patent number: 7097855
    Abstract: An invention for polymerizing or crosslinking a prepolymer using a water soluble, thermal polymerization initiator is disclosed. The prepolymer mixed with the initiator is injected or placed into an animal's body, and heat is applied over the site of the injection to polymerize the polymer. This transdermal thermal polymerization system can be used for drug delivery of bioactive agents in tissue engineering applications in which living cells are delivered.
    Type: Grant
    Filed: January 31, 2000
    Date of Patent: August 29, 2006
    Assignee: Massachusetts Institute of Technology
    Inventors: Guillermo A. Ameer, Eric T. Crumpler, Robert S. Langer