Patents by Inventor Shanta M. Modak

Shanta M. Modak 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: 20100216889
    Abstract: The present invention relates to cleanser compositions, and their uses, wherein the cleanser compositions comprise one or more cationic antiseptic agents, a film-forming cationic emulsifying agent, a dispersing auxiliary solvent, a solvent system, and optionally an alkanediol.
    Type: Application
    Filed: June 6, 2008
    Publication date: August 26, 2010
    Applicant: THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF
    Inventors: Shanta M. Modak, Ingrid Geraldo, Lauserpina Caraos, Nayana Baiju
  • Patent number: 7759327
    Abstract: The present invention relates to methods and compositions which employ low concentrations of combinations of zinc salts and antimicrobial agents in coatings for medical articles. The coatings have an anti-irritant effect and inhibit transmission of infectious disease.
    Type: Grant
    Filed: June 2, 2006
    Date of Patent: July 20, 2010
    Assignees: The Trustees of Columbia University in the City of New York, VSP Technologies, Inc.
    Inventors: Shanta M. Modak, Luserpina Caraos, Carlo Micceri
  • Patent number: 7745425
    Abstract: The present invention relates to methods and compositions which employ low concentrations of combinations of zinc salts to prevent the irritation of skin or mucous membranes that may be caused by therapeutic agents, by personal hygiene products, by articles such as gloves or condoms, or by various physical, chemical, mechanical, or biological irritants.
    Type: Grant
    Filed: January 6, 2006
    Date of Patent: June 29, 2010
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Shanta M. Modak, Milind S. Shintre, Lauserpina Caraos, Trupti Gaonkar, Ingrid Geraldo
  • Patent number: 7563461
    Abstract: The present invention relates to methods and compositions which employ low concentrations of combinations of zinc salts to prevent the irritation of skin or mucous membranes that may be caused by therapeutic agents, by personal hygiene products, or by various physical, chemical, mechanical, or biological irritants, including infectious agents.
    Type: Grant
    Filed: June 2, 2005
    Date of Patent: July 21, 2009
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Shanta M. Modak, Trupti Gaonkar, Milind Shintre, Lauserpina Caraos, Ingrid Geraldo
  • Patent number: 7537779
    Abstract: The present invention provides for antimicrobial medical articles prepared by a method comprising treating a surface of the medical article with a solution consisting essentially of one or more solvents and a mixture of chlorhexidine free base and a water-soluble chlorhexidine salt, at a weight/weight ratio of between about 1:1 to about 1:5, wherein the combined concentration of chlorhexidine free base and a water-soluble salt of chlorhexidine is about 2% (w/v) or greater. In alternative embodiments, the antimicrobial medical articles may be treated with a similar solution in which the concentrations of chlorhexidine free base and a water-soluble salt of chlorhexidine are each about 0.20 percent (w/v). Other embodiments include those in which the solvent comprises methanol, or the treatment solution further comprises a silver salt, one or more organic acids, an anti-inflammatory agent, and a hydrogel.
    Type: Grant
    Filed: June 20, 2003
    Date of Patent: May 26, 2009
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Shanta M. Modak, Lester A. Sampath
  • Publication number: 20090035390
    Abstract: The present invention relates to methods and compositions which employ low concentrations of combinations of zinc salts and antimicrobial agents in coatings for medical articles. The coatings have an anti-irritant effect and inhibit transmission of infectious disease.
    Type: Application
    Filed: June 2, 2006
    Publication date: February 5, 2009
    Inventors: Shanta M. Modak, Lauserpina Caraos, Carlo Micceri
  • Publication number: 20090029961
    Abstract: The present invention relates to methods and compositions for rendering a surface resistant to bio-film formation by a combination of an alkanediol and an antimicrobial agent (and, optionally, an organic hydroxy acid). The invention provides for compositions which may be used to render surfaces bio-film resistant, articles having bio-film resistant surfaces, and methods for their preparation. The present invention may be advantageously applied to medical articles as well as articles used in non-medical contexts, such as child care or food preparation.
    Type: Application
    Filed: June 6, 2008
    Publication date: January 29, 2009
    Inventors: Shanta M. Modak, Lauserpina A. Caraos, Ronald Citron, Ingrid Geraldo
  • Publication number: 20090004122
    Abstract: The present invention relates to a skin or surface disinfectant composition with broad spectrum antimicrobial activity comprising one or more essential oil (and/or one or more component thereof) and one or more fruit acid. The compositions of the invention may be used as non-toxic alternatives to conventional disinfectants or may be added to other antimicrobial agents to enhance their activity. The invention provides effective alternatives to harsher products which may be particularly useful in personal care and household products and where children and/or pet exposure may be a concern.
    Type: Application
    Filed: June 6, 2008
    Publication date: January 1, 2009
    Inventors: Shanta M. Modak, Nayana Baiju, Lauserpina A. Caraos
  • Publication number: 20080311231
    Abstract: Preservative compositions containing emollient solvents such as octanediol or Symdiolâ„¢ or octoxyglycerine monoesters in combination with organic acids such as alpha hydroxyl acids can be used for preventing microbial growth and spoilage in cosmetic and topical skin formulations with the added benefit of providing silky smooth texture to skin. The compositions may optionally contain an essential oil/component. These preservative compositions are odorless and colorless and small concentrations can be added to cosmetic/topical formulations to prevent bacterial, yeast and fungal growth within 24 to 48 hours after contamination.
    Type: Application
    Filed: June 10, 2008
    Publication date: December 18, 2008
    Inventors: Shanta M. Modak, Lauserpina A. Caraos
  • Patent number: 7435429
    Abstract: The present invention provides for compositions and methods that may offer protection from irritants, as well as antimicrobial protection. Preferred embodiments of the invention include topical antimicrobial compositions comprising two or more water-soluble zinc salts in low concentrations.
    Type: Grant
    Filed: January 7, 2005
    Date of Patent: October 14, 2008
    Assignee: Trustees of Columbia University in the City of New York
    Inventors: Shanta M. Modak, Trupti Gaonkar, Milind Shintre, Lauserpina Caraos, Ingrid Geraldo
  • Patent number: 7329412
    Abstract: The present disclosure invention relates to medical devices treated with a solution comprising one or more solvents and a combination of chlorhexidine free base and a water-soluble chlorhexidine salt in a weight/weight ratio of between about 1:1 to about 1:5, preferably about 1:1.
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: February 12, 2008
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Shanta M. Modak, Lester A. Sampath
  • Publication number: 20040208908
    Abstract: Medical articles impregnated with antimicrobial compositions containing synergistic combinations of octoxyglycerin and other anti-infective compounds are disclosed. Such medical articles may include urinary catheters, central venous catheters, tracheal catheters, arterial grafts, wound dressings, sutures, or any other medical articles derived from polymeric substrates such as biomedical polyurethane, biomedical polyvinylchloride (PVC), biomedical silicon, biodegradable polymers, polytetrafluoroethylene (PTFE), etc. or from natural products including natural rubber, silk or cotton fiber.
    Type: Application
    Filed: April 16, 2003
    Publication date: October 21, 2004
    Applicant: The Trustees of Columbia University in the City of New York
    Inventors: Shanta M. Modak, Trupti Gaonkar
  • Publication number: 20040102429
    Abstract: The addition of low concentrations of combinations of water-soluble organic salts of zinc to gels, creams, lotions or ointments can increase the ability of these products to reduce or prevent exogenous irritants from causing irritation of the underlying substrate. The addition of low concentrations of combinations of water-soluble organic zinc salts to these gels, creams, lotions or ointments also can reduce the irritation of skin or mucous membranes caused by the addition of potentially-irritating substances such as spermicides, microbicides, fungicides or other therapeutic agents to the gel, cream, lotion or ointment. The advantages of this anti-irritant approach over others, which generally employ high concentrations of single zinc salts, are the reduced potential for zinc toxicity, the reduced potential for toxicity related to zinc itself, and the preservation of the desirable biological properties of potentially-irritating therapeutic substances added to the gel, cream, lotion or ointment.
    Type: Application
    Filed: July 17, 2003
    Publication date: May 27, 2004
    Inventors: Shanta M. Modak, Milind S. Shintre, Lauser Caraos, Trupti Gaonkar
  • Publication number: 20040052831
    Abstract: The present invention provides for antimicrobial medical articles prepared by a method comprising treating a surface of the medical article with a solution consisting essentially of one or more solvents and a mixture of chlorhexidine free base and a water-soluble chlorhexidine salt, at a weight/weight ratio of between about 1:1 to about 1:5, wherein the combined concentration of chlorhexidine free base and a water-soluble salt of chlorhexidine is about 2% (w/v) or greater. In alternative embodiments, the antimicrobial medical articles may be treated with a similar solution in which the concentrations of chlorhexidine free base and a water-soluble salt of chlorhexidine are each about 0.20 percent (w/v). Other embodiments include those in which the solvent comprises methanol, or the treatment solution further comprises a silver salt, one or more organic acids, an anti-inflammatory agent, and a hydrogel.
    Type: Application
    Filed: June 20, 2003
    Publication date: March 18, 2004
    Inventors: Shanta M. Modak, Lester A. Sampath
  • Patent number: 6706024
    Abstract: The present invention relates to polymeric medical articles comprising the anti-infective agents chlorhexidine and triclosan. It is based, at least in part, on the discovery that the synergistic relationship between these compounds permits the use of relatively low levels of both agents, and on the discovery that effective antimicrobial activity may be achieved when these compounds are comprised in either hydrophilic or hydrophobic polymers. It is also based on the discovery that chlorhexidine free base and triclosan, used together, are incorporated into polymeric medical articles more efficiently. Medical articles prepared according to the invention offer the advantage of preventing or inhibiting infection while avoiding undesirably high release of anti-infective agent, for example into the bloodstream of a subject.
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: March 16, 2004
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Shanta M. Modak, Lester A. Sampath
  • Patent number: 6582719
    Abstract: The present invention relates to compositions comprising a combination of one or more antiseptic and an antibiotic. It is based, at least in part, on the discovery that such combinations tend to deter the formation of antibiotic-resistant organisms. In preferred, nonlimiting embodiments of the invention, the antibiotic is minocycline and the antiseptic is a chlorhexidine compound, triclosan, or benzalkonium chloride, and in particular embodiments, a silver salt or a bismuth salt is added. Examples of specific, nonlimiting embodiments of the invention include combinations of (i) minocycline, triclosan, and a bismuth salt; (ii) minocycline, a chlorhexidine compound, and a bismuth salt; and (iii) minocycline, benzalkonium chloride, and a bismuth salt. The present invention further provides for articles, such as, but not limited to, medical articles, which have been treated with or which otherwise comprise a combination of antiseptic and antibiotic.
    Type: Grant
    Filed: February 2, 2001
    Date of Patent: June 24, 2003
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Shanta M. Modak, Suhas Tambe, Lester A. Sampath
  • Publication number: 20020173775
    Abstract: The present invention relates to compositions comprising a combination of one or more antiseptic and an antibiotic. It is based, at least in part, on the discovery that such combinations tend to deter the formation of antibiotic-resistant organisms. In preferred, nonlimiting embodiments of the invention, the antibiotic is minocycline and the antiseptic is a chlorhexidine compound, triclosan, or benzalkonium chloride, and in particular embodiments, a silver salt or a bismuth salt is added. Examples of specific, nonlimiting embodiments of the invention include combinations of (i) minocycline, triclosan, and a bismuth salt; (ii) minocycline, a chlorhexidine compound, and a bismuth salt; and (iii) minocycline, benzalkonium chloride, and a bismuth salt. The present invention further provides for articles, such as, but not limited to, medical articles, which have been treated with or which otherwise comprise a combination of antiseptic and antibiotic.
    Type: Application
    Filed: February 2, 2001
    Publication date: November 21, 2002
    Inventors: Shanta M. Modak, Suhas Tambe, Lester A. Sampath
  • Publication number: 20020122876
    Abstract: The present disclosure invention relates to medical devices treated with a solution comprising one or more solvents and a combination of chlorhexidine free base and a water-soluble chlorhexidine salt in a weight/weight ratio of between about 1:1 to about 1:5, preferably about 1:1.
    Type: Application
    Filed: December 22, 2000
    Publication date: September 5, 2002
    Inventors: Shanta M. Modak, Lester A. Sampath
  • Publication number: 20010024661
    Abstract: The present invention relates to polymeric medical articles comprising the anti-infective agents chlorhexidine and triclosan. It is based, at least in part, on the discovery that the synergistic relationship between these compounds permits the use of relatively low levels of both agents, and on the discovery that effective antimicrobial activity may be achieved when these compounds are comprised in either hydrophilic or hydrophobic polymers. It is also based on the discovery that chlorhexidine free base and triclosan, used together, are incorporated into polymeric medical articles more efficiently. Medical articles prepared according to the invention offer the advantage of preventing or inhibiting infection while avoiding undesirably high release of anti-infective agent, for example into the bloodstream of a subject.
    Type: Application
    Filed: December 22, 2000
    Publication date: September 27, 2001
    Inventors: Shanta M. Modak, Lester A. Sampath
  • Patent number: 6037386
    Abstract: The present invention relates to zinc gluconate gel-containing topical compositions which have an anti-irritant effect on the skin. In particular embodiments, the gel matrix may further comprise chlorhexidine gluconate, wherein the zinc gluconate gel diminishes the irritant and/or allergenic effect of the chlorhexidine gluconate.
    Type: Grant
    Filed: August 31, 1999
    Date of Patent: March 14, 2000
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Shanta M. Modak, Lester A. Sampath, Balram H. Advani