Patents Assigned to Perio Products Ltd.
  • Patent number: 6231888
    Abstract: A composition and method for the treatment of polyp and colon cancer is described, such composition and method providing for the colonic delivery and/or preferential metabolism of a drug or desired agent, especially an NSAID, in the colon of the patient in need such treatment.
    Type: Grant
    Filed: November 12, 1998
    Date of Patent: May 15, 2001
    Assignee: Perio Products Ltd.
    Inventors: E. Itzhak Lerner, Moshe Flashner, Adel Penhasi
  • Patent number: 6197331
    Abstract: The invention is directed to a controlled-release solid composition for the oral cavity or “pharmaceutical oral patch” that adheres to hard dental surfaces, such as teeth and dentures, and releases an active pharmaceutical agent into the oral cavity. Release of the agent is for a predetermined period of time and at a predetermined sustained concentration. The site of action of the agent is local or systemic.
    Type: Grant
    Filed: July 24, 1997
    Date of Patent: March 6, 2001
    Assignee: Perio Products Ltd.
    Inventors: E. Itzhak Lerner, Vered Rosenberger, Moshe Flashner
  • Patent number: 5866619
    Abstract: A colonic delivery system for delivering a drug to the colon is provided. The system comprises a drug in combination with a matrix, wherein the matrix comprises a saccharide-containing polymer. According to the invention, the matrix is resistant to chemical and enzymatic degradation in the stomach and small intestine. The matrix is degraded in the colon by bacterial enzymatic action, and the drug is released. The system is useful for targeting drugs to the colon in order to treat colonic disease. The system is also useful for enteric administration of drugs such as proteins and peptides which are otherwise degraded in the stomach and small intestine.
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: February 2, 1999
    Assignees: Perio Products Ltd., Yissum Research Development Company of the Hebrew University of Jerusalem
    Inventors: Amnon Sintov, Abraham Rubinstein
  • Patent number: 5849266
    Abstract: The invention relates to an oral composition for the treatment and prevention of dental hypersensitivity comprising an anti-hypersensitivity agent embedded in a sustained release carrier such as a cellulosic or hydrophobic polymer, and a method for the use of said composition in treating and preventing dental hypersensitivity. The invention also provides for the supplementation of said oral composition with an adhesive and a plasticizer to increase the effectiveness of the anti-hypersensitivity agent.
    Type: Grant
    Filed: April 4, 1995
    Date of Patent: December 15, 1998
    Assignee: Perio Products Ltd.
    Inventor: Michael Friedman
  • Patent number: 5840332
    Abstract: A gastrointestinal delivery system is provided. The system comprises a drug in combination with a core material, the core being surrounded by a water-insoluble or relatively water-insoluble coating material in which particulate water-insoluble material is embedded. When the delivery device enters the gastrointestinal tract, the particulate matter takes up liquid, thus forming channels interconnecting the drug-containing core with the outside of the delivery device. These channels allow the release of drug from the core into the gastrointestinal tract. By controlling parameters in the device, such as the core material, carrier material in the coating, and particulate matter, the location of release of the drug can be carefully controlled. Thus, the invention is also directed to a method of using the device for the treatment of disease by the release of drugs in the gastrointestinal tract in a location- and time- dependent manner.
    Type: Grant
    Filed: January 18, 1996
    Date of Patent: November 24, 1998
    Assignee: Perio Products Ltd.
    Inventors: E. Itzhak Lerner, Moshe Flashner, Adel Penhasi
  • Patent number: 5648399
    Abstract: The invention relates to methods for the treatment of gingivitis, oral plaque and oral or dermatological fungal infections by the administration of a liquid methacrylic acid copolymer composition that contains a release adjusting agent and a pharmacological agent. The composition forms a solid film upon drying, and is capable of accomplishing the sustained release of the pharmacological agent such as to permit its use in the treatment or prevention of dental or dermatological conditions.
    Type: Grant
    Filed: April 25, 1995
    Date of Patent: July 15, 1997
    Assignees: Perio Products, Ltd., Yissum Research Development Company of the Hebrew University of Jerusalem
    Inventors: Michael Friedman, Amnon Sintov
  • Patent number: 5639795
    Abstract: The invention relates to methods for the treatment of gingivitis, oral plaque and oral or dermatological fungal infections by the administration of a liquid methacrylic acid copolymer composition that contains a release adjusting agent and a pharmacological agent. The composition forms a solid film upon drying, and is capable of accomplishing the sustained release of the pharmacological agent such as to permit its use in the treatment or prevention of dental or dermatological conditions.
    Type: Grant
    Filed: April 25, 1995
    Date of Patent: June 17, 1997
    Assignees: Perio Products, Ltd., Yissum Research Development Company of the Hebrew University of Jerusalem
    Inventors: Michael Friedman, Amon Sintov
  • Patent number: 5525634
    Abstract: A colonic delivery system for delivering a drug to the colon is provided. The system comprises a drug in combination with a matrix, wherein the matrix comprises a saccharide-containing polymer. According to the invention, the matrix is resistant to chemical and enzymatic degradation in the stomach and small intestine. The matrix is degraded in the colon by bacterial enzymatic action, and the drug is released. The system is useful for targeting drugs to the colon in order to treat colonic disease. The system is also useful for enteric administration of drugs such as proteins and peptides which are otherwise degraded in the stomach and small intestine.
    Type: Grant
    Filed: February 10, 1994
    Date of Patent: June 11, 1996
    Assignees: Perio Products, Ltd., Yissum Research Development Co. of the Hebrew Univ. of Jerusalem
    Inventors: Amnon Sintov, Abraham Rubinstein
  • Patent number: 5438076
    Abstract: The invention relates methods for the treatment of gingivitis, oral plaque and oral or dermatological fungal infections by the administration of a liquid methacrylic acid copolymer composition that contains a release adjusting agent and a pharmacological agent. The composition forms a solid film upon drying, and is capable of accomplishing the sustained release of the pharmacological agent such as to permit its use in the treatment or prevention of dental or dermatological conditions.
    Type: Grant
    Filed: January 4, 1993
    Date of Patent: August 1, 1995
    Assignee: Perio Products, Ltd.
    Inventors: Michael Friedman, Amnon Sintov
  • Patent number: 5160737
    Abstract: The invention relates to a liquid methacrylic acid copolymer composition that contains a release adjusting agent and a pharmacological agent. The composition forms a solid film upon drying, and is capable of accomplishing the sustained release of the pharmacological agent such as to permit its use in the treatment or prevention of dental or dermatological conditions.
    Type: Grant
    Filed: March 28, 1990
    Date of Patent: November 3, 1992
    Assignees: Perio Products Ltd., Yissum Research Development Company
    Inventors: Michael Friedman, Amnon Sintov