Patents by Inventor Edward Sacher

Edward Sacher 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: 6664245
    Abstract: An adhesive composition is provided which is suitable for the bonding of polymeric materials, in whole or in part, such as composite resins, or methacrylate-containing glass-ionomer filling materials, to tooth enamel, or tooth dentin, or to other hand tissues of the human body, such as bone. The composition comprises an unsaturated carboxylic acid ester, an unsaturated phosphate ester and other crosslinking agents. The especially preferred phosphates (which are provided as new compounds) are those of formula (I) in which: R1 is a hydrogen atom, alkyl C1-C4, or CN; R is an aliphatic, cycloaliphatic or aryl radical containing from 1 to 10 carbon atoms and having a valence of n+1; n is an integer from 1 to 5, preferably from 3 to 5.
    Type: Grant
    Filed: January 10, 2003
    Date of Patent: December 16, 2003
    Assignee: BioMat Sciences, Inc.
    Inventors: Ivan Stangel, Jingwei Xu, Thomas Ellis, Edward Sacher
  • Patent number: 6645952
    Abstract: An adhesive composition is provided which is suitable for the bonding of polymeric materials, in whole or in part, such as composite resins, or methacrylate-containing glass-ionomer filling materials, to tooth enamel, or tooth dentin, or to other hand tissues of the human body, such as bone. The composition comprises an unsaturated carboxylic acid ester, an unsaturated phosphate ester and other crosslinking agents. The especially preferred phosphates (which are provided as new compounds) are those of formula (I) in which: R1 is a hydrogen atom, alkyl C1-C4, or CN; R is an aliphatic, cycloaliphatic or aryl radical containing from 1 to 10 carbon atoms and having a valence of n+1; n is an integer from 1 to 5, preferably from 3 to 5.
    Type: Grant
    Filed: February 20, 2001
    Date of Patent: November 11, 2003
    Assignee: Biomat Sciences, Inc.
    Inventors: Ivan Stangel, Jingwei Xu, Thomas Ellis, Edward Sacher
  • Publication number: 20030118523
    Abstract: An adhesive composition is provided which is suitable for the bonding of polymeric materials, in whole or in part, such as composite resins, or methacrylate-containing glass-ionomer filling materials, to tooth enamel, or tooth dentin, or to other hand tissues of the human body, such as bone. The composition comprises an unsaturated carboxylic acid ester, an unsaturated phosphate ester and other crosslinking agents. The especially preferred phosphates (which are provided as new compounds) are those of formula (I) in which: R1 is a hydrogen atom, alkyl C1-C4, or CN; R is an aliphatic, cycloaliphatic or aryl radical containing from 1 to 10 carbon atoms and having a valence of n+1; n is an integer from 1 to 5, preferably from 3 to 5.
    Type: Application
    Filed: January 10, 2003
    Publication date: June 26, 2003
    Applicant: BioMat Sciences, Inc.
    Inventors: Ivan Stangel, Jingwei Xu, Thomas Ellis, Edward Sacher
  • Patent number: 6444724
    Abstract: Composite materials particularly suitable in the dental art as a tooth filling material including a polymer matrix, a metal, metal alloy, metal oxide particulate, or combinations thereof, in the presence or absence of colloidal silica, and a coupling agent to adhere the particulate to the polymer matrix. Adhesion can also be facilitated by cleaning and/or coating the particulates prior to incorporation into the polymer matrix. One or two paste systems of the composition with suitable initiators, accelerators, etc. can be formulated.
    Type: Grant
    Filed: December 20, 1999
    Date of Patent: September 3, 2002
    Assignee: BioMat Sciences, Inc.
    Inventors: Ivan Stangel, Thomas Ellis, Erik Kruus, Edward Sacher, Robin Drew, Jingwei Xu
  • Publication number: 20020015682
    Abstract: An adhesive composition is provided which is suitable for the bonding of polymeric materials, in whole or in part, such as composite resins, or methacrylate-containing glass-ionomer filling materials, to tooth enamel, or tooth dentin, or to other hand tissues of the human body, such as bone. The composition comprises an unsaturated carboxylic acid ester, an unsaturated phosphate ester and other crosslinking agents. The especially preferred phosphates (which are provided as new compounds) are those of formula (I) in which: R1 is a hydrogen atom, alkyl C1-C4, or CN; R is an aliphatic, cycloaliphatic or aryl radical containing from 1 to 10 carbon atoms and having a valence of n+1; n is an integer from 1 to 5, preferably from 3 to 5.
    Type: Application
    Filed: February 20, 2001
    Publication date: February 7, 2002
    Inventors: Ivan Stangel, Jingwei Xu, Thomas Ellis, Edward Sacher
  • Patent number: 5824651
    Abstract: The present invention relates to a process for the covalent coating of implants with a bioactive conjugate, which comprises the steps of: a) cleaning a metal implant surface from contaminants by deoxidation with potentiostatic electrochemical polishing in a solution selected from ethanol, perchloric acid-butanol-methanol solution, H.sub.2 O.sub.2 --NaCl--NaH.sub.2 PO.sub.4 or by chemical cleaning with a solution selected from the group consisting of HF/HNO.sub.3, H.sub.2 O.sub.2 /H.sub.2 SO.sub.4 and H.sub.2 O.sub.
    Type: Grant
    Filed: June 28, 1996
    Date of Patent: October 20, 1998
    Assignee: Universite de Montreal
    Inventors: Antonio Nanci, Marc D. McKee, Edward Sacher, Oumarou Savadogo, James Wuest
  • Patent number: 4557946
    Abstract: The invention comprises a method of controlling the water permeability of a coating applied to a substrate, in particular for the case of organosilicone coatings.
    Type: Grant
    Filed: June 3, 1983
    Date of Patent: December 10, 1985
    Inventors: Edward Sacher, Michael R. Wertheimer, Henry P. Schreiber