Patents by Inventor David C. Greenspan

David C. Greenspan 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).

  • Patent number: 9198936
    Abstract: This invention relates to methods for producing a composite bone graft material that can regenerate bony defects in the body. The invention further relates to methods that allow for the production of bioactive glass particles used in the composite that have been surface treated to allow for the production of a highly porous composite that can hold significant amounts of body fluid or other molecules that will aid in the regenerative process. The method of surface treatment allows for the manufacture of a suitable implantable composite while retaining the unique osteostimulative properties that are associated with bioactive glass particles.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: December 1, 2015
    Assignee: NOVABONE PRODUCTS, LLC
    Inventors: David C. Greenspan, Srinivas Katta
  • Patent number: 9199032
    Abstract: Methods for producing a composite bone graft material that can regenerate bony defects in the body are provided. Also, methods, kits and delivery systems for a minimally invasive delivery of a composition for regenerating bone at or near the site of a bony defect that include, the composition for regenerating bone comprising collagen and bioactive glass are provided.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: December 1, 2015
    Assignee: NOVABONE PRODUCTS, LLC
    Inventors: Dennis McBride, Joshua P. Clark, Richard Davis, Gregory J. Pomrink, Zehra Tosun, David C. Greenspan
  • Patent number: 9199006
    Abstract: The present invention relates to combination products including bioactive glass and collagen as well as kits comprising the same.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: December 1, 2015
    Assignee: NOVABONE PRODUCTS, LLC
    Inventors: Gregory J. Pomrink, Zehra Tosun, Cecilia A. Gao, Joshua Clark, David C. Greenspan
  • Patent number: 9144629
    Abstract: Compositions including crosslinked collagen and bioactive glass having an average pore size of at least 100 microns and methods of preparation thereof.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: September 29, 2015
    Assignee: NOVABONE PRODUCTS, LLC
    Inventors: Gregory J. Pomrink, Cecilia A. Cao, Joshua Clark, Zehra Tosun, David C. Greenspan, Srinivas Katta
  • Patent number: 8795702
    Abstract: This invention relates to methods for producing a composite bone graft material that can regenerate bony defects in the body. The invention further relates to methods that allow for the production of bioactive glass particles used in the composite that have been surface treated to allow for the production of a highly porous composite that can hold significant amounts of body fluid or other molecules that will aid in the regenerative process. The method of surface treatment allows for the manufacture of a suitable implantable composite while retaining the unique osteostimulative properties that are associated with bioactive glass particles.
    Type: Grant
    Filed: March 3, 2011
    Date of Patent: August 5, 2014
    Assignee: Novabone Products, LLC
    Inventors: David C. Greenspan, Srinivas Katta
  • Publication number: 20140178453
    Abstract: This invention relates to methods for producing a composite bone graft material that can regenerate bony defects in the body. The invention further relates to methods that allow for the production of bioactive glass particles used in the composite that have been surface treated to allow for the production of a highly porous composite that can hold significant amounts of body fluid or other molecules that will aid in the regenerative process. The method of surface treatment allows for the manufacture of a suitable implantable composite while retaining the unique osteostimulative properties that are associated with bioactive glass particles.
    Type: Application
    Filed: February 28, 2014
    Publication date: June 26, 2014
    Inventors: David C. Greenspan, Srinivas Katta
  • Publication number: 20140017281
    Abstract: Compositions including crosslinked collagen and bioactive glass having an average pore size of at least 100 microns and methods of preparation thereof.
    Type: Application
    Filed: March 15, 2013
    Publication date: January 16, 2014
    Inventors: Gregory J. POMRINK, Cecilia A. CAO, Joshua CLARK, Zehra TOSUN, David C. GREENSPAN, Srinivas KATTA
  • Patent number: 8551508
    Abstract: The present invention involves new cosmetic, personal care, cleaning agent, biocidal agent, functional food, and nutritional supplement compositions. These new compositions incorporate bioactive glass into cosmetics, personal care items, cleaning agents, biocidal agents, functional foods, and nutritional supplements. The present invention also involves methods of making and methods of using such compositions.
    Type: Grant
    Filed: July 10, 2007
    Date of Patent: October 8, 2013
    Assignee: Schott AG
    Inventors: Sean Lee, Susanna Kessler, Oliver Forberich, Claire Buchwar, David C. Greenspan
  • Publication number: 20110217388
    Abstract: This invention relates to methods for producing a composite bone graft material that can regenerate bony defects in the body. The invention further relates to methods that allow for the production of bioactive glass particles used in the composite that have been surface treated to allow for the production of a highly porous composite that can hold significant amounts of body fluid or other molecules that will aid in the regenerative process. The method of surface treatment allows for the manufacture of a suitable implantable composite while retaining the unique osteostimulative properties that are associated with bioactive glass particles.
    Type: Application
    Filed: March 3, 2011
    Publication date: September 8, 2011
    Applicant: NOVABONE PRODUCTS, LLC
    Inventors: David C. GREENSPAN, Srinivas KATTA
  • Patent number: 7250174
    Abstract: The present invention involves new cosmetic, personal care, cleaning agent, biocidal agent, functional food, and nutritional supplement compositions. These new compositions incorporate bioactive glass into cosmetics, personal care items, cleaning agents, biocidal agents, functional foods, and nutritional supplements. The present invention also involves methods of making and methods of using such compositions.
    Type: Grant
    Filed: March 27, 2001
    Date of Patent: July 31, 2007
    Assignee: Schott AG
    Inventors: Sean Lee, Susanna Kessler, Oliver Forberich, Claire Buchwar, David C. Greenspan
  • Publication number: 20040228905
    Abstract: Compositions and methods for treating wounds to significantly reduce the healing time, reduce the incidence of scar formation, improve the success of skin grafts, reduce the inflammatory response and providing anti-bacterial treatments to a patient in need thereof, that include small non-interlinked particles of bioactive glass or highly porous bioactive glass, are disclosed. Anti-bacterial solutions derived from bioactive glass, and methods of preparation and use thereof, are also disclosed. The compositions include non-interlinked particles of bioactive glass, alone or in combination with anti-bacterial agents and/or anti-inflammatory agents. The compositions can include an appropriate carrier for topical administration. Anti-bacterial properties can be imparted to implanted materials, such as prosthetic implants, sutures, stents, screws, plates, tubes, and the like, by incorporating small bioactive glass particles or porous bioactive glass into or onto the implanted materials.
    Type: Application
    Filed: June 10, 2004
    Publication date: November 18, 2004
    Inventors: David C. Greenspan, Jon K. West, Sean Lee, James L. Meyers, Mason Diamond
  • Patent number: 6756060
    Abstract: Compositions and methods for treating wounds to significantly reduce the healing time, reduce the incidence of scar formation, improve the success of skin grafts, reduce the inflammatory response and providing anti-bacterial treatments to a patient in need thereof, that include small non-interlinked particles of bioactive glass or highly porous bioactive glass, are disclosed. Anti-bacterial solutions derived from bioactive glass, and methods of preparation and use thereof, are also disclosed. The compositions include non-interlinked particles of bioactive glass, alone or in combination with anti-bacterial agents and/or anti-inflammatory agents. The compositions can include an appropriate carrier for topical administration. Anti-bacterial properties can be imparted to implanted materials, such as prosthetic implants, sutures, stents, screws, plates, tubes, and the like, by incorporating small bioactive glass particles or porous bioactive glass into or onto the implanted materials.
    Type: Grant
    Filed: April 27, 2000
    Date of Patent: June 29, 2004
    Assignee: USBiomaterials Corp.
    Inventors: David C. Greenspan, Jon K. West, Sean Lee, James L. Meyers, Mason Diamond
  • Publication number: 20040096513
    Abstract: Compositions and methods for systemically minimizing the inflammatory effects of TNF-&agr; are disclosed. The compositions include particles of bioactive glass with a particle size less than about 20 &mgr;m, alone or in combination with anti-inflammatory agents and other therapeutic agents. The compositions can include an appropriate carrier for oral, intramuscular, intraperitoneal or intravenous administration. When administered to a patient, the particles bring about elevated levels of IL-6 and do not cause elevated levels of TNF-&agr;.
    Type: Application
    Filed: November 7, 2003
    Publication date: May 20, 2004
    Applicant: US BioMaterials Corporation
    Inventors: David C. Greenspan, Sean Lee, Marlo Tan Walpole
  • Patent number: 6663878
    Abstract: Compositions and methods for systemically minimizing the inflammatory effects of TNF-&agr; are disclosed. The compositions include particles of bioactive glass with a particle size less than about 20 &mgr;m, alone or in combination with anti-inflammatory agents and other therapeutic agents. The compositions can include an appropriate carrier for oral, intramuscular, intraperitoneal or intravenous administration. When administered to a patient, the particles bring about elevated levels of IL-6 and do not cause elevated levels of TNF-&agr;.
    Type: Grant
    Filed: April 28, 2000
    Date of Patent: December 16, 2003
    Assignee: USBIOMATERIALS Corp.
    Inventors: David C. Greenspan, Sean Lee, Marlo tan Walpole
  • Patent number: 6517863
    Abstract: Compositions and methods for treating nails and adjacent tissues are disclosed. The compositions include non-interlinked particles of bioactive glass, alone or in combination with therapeutic agents, hydrophilic polymers, and other optional components. The compositions optionally include an appropriate aqueous carrier for topical administration. The methods involve applying an effective nail-enhancing amount of the composition to the nails and adjacent tissues for a sufficient amount of time to cause the formation of a hydroxyapatite or other calcium phosphate mineral layer on the nail surface.
    Type: Grant
    Filed: January 19, 2000
    Date of Patent: February 11, 2003
    Assignee: USBiomaterials Corporation
    Inventors: Guy LaTorre, David C. Greenspan, Alice D. Greenspan
  • Patent number: 6428800
    Abstract: A method for treating wounds including contacting a wound with an effective wound healing amount of bioactive glass and topical antibiotic and composition for the accelerated healing of wounds and burns including particulates of bioactive glass and at least one topical antibiotic.
    Type: Grant
    Filed: October 1, 1998
    Date of Patent: August 6, 2002
    Assignee: USBiomaterials Corporation
    Inventors: David C. Greenspan, Jon K. West
  • Publication number: 20020086039
    Abstract: The present invention involves new cosmetic, personal care, cleaning agent, biocidal agent, functional food, and nutritional supplement compositions. These new compositions incorporate bioactive glass into cosmetics, personal care items, cleaning agents, biocidal agents, functional foods, and nutritional supplements. The present invention also involves methods of making and methods of using such compositions.
    Type: Application
    Filed: March 27, 2001
    Publication date: July 4, 2002
    Inventors: Sean Lee, Susanna Kessler, Oliver Forberich, Claire Buchwar, David C. Greenspan
  • Patent number: 6365132
    Abstract: Methods for whitening teeth including contacting teeth with an effective amount of particulate bioactive glass are disclosed.
    Type: Grant
    Filed: March 17, 2000
    Date of Patent: April 2, 2002
    Assignees: Univ. of MD., Baltimore, USBiomaterials Corp.
    Inventors: Leonard J. Litkowski, Gary D. Hack, David C. Greenspan
  • Patent number: 6344496
    Abstract: Biodegradable polymeric therapeutic substantially nonporous implant materials incorporating bioactive ceramics such as Bioglass® ceramic are provided. These implants provide increased mechanical properties and pH control, enabling the use of these materials to design porous and nonporous therapeutic implants used as cell scaffolds for healing of tissue defects or fixation devices, having desired degradation times, mechanical properties, elasticity and biocompatibility.
    Type: Grant
    Filed: October 5, 1999
    Date of Patent: February 5, 2002
    Assignees: OsteoBiologics, Inc., USBiomaterials Corporation
    Inventors: Gabriele Niederauer, Kristine Kieswetter, Neil C. Leatherbury, David C. Greenspan
  • Patent number: 6338751
    Abstract: A novel silica based bioactive glass composition that can be used in conjunction with a delivery agent such as a toothpaste, gel saliva, etc. having a particle size range <90 &mgr;m which will form a rapid and continuous reaction with body fluids due to the immediate and long term ionic release of Ca and P from the core silica particles, to produce a stable crystalline hydroxy carbonate apatite layer deposited onto and into the dentin tubules for the immediate and long term reduction of dentin hypersensitivity.
    Type: Grant
    Filed: March 31, 1998
    Date of Patent: January 15, 2002
    Assignees: USBiomaterials Corp, University of Maryland, Baltimore
    Inventors: Leonard J. Litkowski, Gary D. Hack, David C. Greenspan