Patents by Inventor Ahmed El-Ghannam

Ahmed El-Ghannam 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: 20200385313
    Abstract: In one aspect, composite carbide compositions are described herein which can facilitate the efficient and/or economical manufacture of articles comprising SiC. Briefly, a composite carbide composition comprises silicon carbide (SiC) particles and a silica interparticle phase covalently bonded to the SiC particles.
    Type: Application
    Filed: January 18, 2018
    Publication date: December 10, 2020
    Inventors: Ahmed EL-GHANNAM, Tony SCHMITZ
  • Patent number: 8168208
    Abstract: A method is disclosed for the generation of bone tissue by the preparation and the application to bone defect sites of a resorbable silica-calcium phosphate bioactive composite (SCPC) that finds utility as a bone tissue engineering scaffold. The resorbable silica-calcium phosphate bioactive composite can be applied directly to bone defect or can be employed as a bioactive coating on implants to facilitate bone growth around the implant. The resorbable silica-calcium phosphate bioactive composite is prepared from a mixture of a silica salt in an amount to provide between about 0.31 moles and about 0.93 moles of silica and calcium phosphate, said silica salt being present in the resorbable silica-calcium phosphate bioactive composite. The mixture is thermally treated at a temperature ranging between about 130° C. to about 1200° C. to form said resorbable silica-calcium phosphate bioactive composite having a phase composition comprising a thermally treated form of silica and calcium phosphate.
    Type: Grant
    Filed: November 7, 2005
    Date of Patent: May 1, 2012
    Inventor: Ahmed El-Ghannam
  • Publication number: 20120093909
    Abstract: In one aspect, the present invention provides coated metal substrates which, in some embodiments, demonstrate one or more advantageous chemical and/or mechanical properties.
    Type: Application
    Filed: June 17, 2010
    Publication date: April 19, 2012
    Inventor: Ahmed El-Ghannam
  • Patent number: 7223414
    Abstract: A resorbable silica-calcium phosphate bioactive composite that finds utility for drug delivery. The bioactive composite is loaded with a pharmaceutical composition and releases a therapeutically effective amount of a pharmaceutical composition for periods of up the 28 days.
    Type: Grant
    Filed: November 19, 2005
    Date of Patent: May 29, 2007
    Inventor: Ahmed El-Ghannam
  • Patent number: 5811302
    Abstract: Novel non-crystalline, porous bioactive glass and ceramic materials that permit the in vitro formation of bone tissue when exposed to a tissue culture medium and inoculated with cells are disclosed. The present invention also discloses methods of treating bioactive glass materials to control pH so that when the glass is exposed to a tissue culture medium and then inoculated with cells, bone tissue growth occurs in vitro. The glass material disclosed is preferably formed from SiO.sub.2, CaO, Na.sub.2 O and P.sub.2 O.sub.5 and the porous, non-crystalline structure is most preferably created by melting the constituents, cooling and pulverizing the resulting glass, and then forming and hot pressing the powder. The glass of the present invention may be formed to produce templates that are useful for various indications, as well as granules that may be formed into a paste.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: September 22, 1998
    Assignee: The Trustees of the University of Pennsylvania
    Inventors: Paul Ducheyne, Ahmed El-Ghannam, Irving Shapiro
  • Patent number: 5676720
    Abstract: A glass material is formed from SiO.sub.2, CaO, Na.sub.2 O and P.sub.2 O.sub.5 and the porous, non-crystalline structure is most preferably created by melting the constituents, cooling and pulverizing the resulting glass, and then forming and hot pressing the powder. The glass of the present invention may be formed to produce templates that are useful for various indications, as well as granules that may be formed into a paste.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: October 14, 1997
    Assignee: The Trustees of the University of Pennsylvania
    Inventors: Paul Ducheyne, Ahmed El-Ghannam, Irving Shapiro
  • Patent number: 5648301
    Abstract: Novel non-crystalline, porous bioactive glass and ceramic materials that permit the in vitro formation of bone tissue when exposed to a tissue culture medium and inoculated with cells are disclosed. The present invention also discloses methods of treating bioactive glass materials to control pH so that when the glass is exposed to a tissue culture medium and then inoculated with cells, bone tissue growth occurs in vitro. The glass material disclosed is preferably formed from SiO.sub.2, CaO, Na.sub.2 O and P.sub.2 O.sub.5 and the porous, non-crystalline structure is most preferably created by melting the constituents, cooling and pulverizing the resulting glass, and then forming and hot pressing the powder. The glass of the present invention may be formed to produce templates that are useful for various indications, as well as granules that may be formed into a paste.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: July 15, 1997
    Assignee: Trustees of the University of Pennsylvania
    Inventors: Paul Ducheyne, Ahmed El-Ghannam, Irving Shapiro
  • Patent number: 5643789
    Abstract: Novel non-crystalline, porous bioactive glass and ceramic materials that permit the in vitro formation of bone tissue when exposed to a tissue culture medium and inoculated with cells are disclosed. The present invention also discloses methods of treating bioactive glass materials to control pH so that when the glass is exposed to a tissue culture medium and then inoculated with cells, bone tissue growth occurs in vitro. The glass material disclosed is preferably formed from SiO.sub.2, CaO, Na.sub.2 O and P.sub.2 O.sub.5 and the porous, non-crystalline structure is most preferably created by melting the constituents, cooling and pulverizing the resulting glass, and then forming and hot pressing the powder. The glass of the present invention may be formed to produce templates that are useful for various indications, as well as granules that may be formed into a paste.
    Type: Grant
    Filed: July 21, 1994
    Date of Patent: July 1, 1997
    Assignee: Trustees of the University of Pennslyvania
    Inventors: Paul Ducheyne, Ahmed El-Ghannam, Irving Shapiro