Patents Represented by Attorney Owen D. Marjama
  • Patent number: 4192795
    Abstract: A single paste photopolymerizable dental restoration composition which utilizes a barium-aluminum-silicate glass filler material.
    Type: Grant
    Filed: September 29, 1977
    Date of Patent: March 11, 1980
    Assignee: Sybron Corporation
    Inventors: Narayanan Madhavan, Frank H. Freeman
  • Patent number: 4131585
    Abstract: A novel leveling agent for self polishing dry-bright floor polishes having the following general structure is described: ##STR1## where R is either a non-linear aliphatic hydrocarbon or mixture of hydrocarbons containing 8 to 15 carbon atoms or an alkylbenzene moiety containing 8 to 12 carbon atoms in the alkyl chainA is either Oxygen or Sulfur atomR.sub.1 is either Hydrogen atom or CH.sub.3R.sub.2 is either Hydrogen atom or CH.sub.3a and b are small numbers or average numbers totaling no more than about 7 so that the solubility of the compounds is less than about 0.4% in water at room or application temperature, but when R is alkylbenzene moiety, A is oxygen atom only and R.sub.1 and R.sub.2 are hydrogen atoms only.
    Type: Grant
    Filed: April 21, 1978
    Date of Patent: December 26, 1978
    Assignee: Sybron Corporation
    Inventor: Robert Feigin
  • Patent number: 3985558
    Abstract: A dental amalgam which comprises about 40 to 50 weight percent mercury and about 50 to 60 weight percent of an alloy which comprises 24 to 45 weight percent silver, 28 to 42 weight percent copper and 29 to 34 weight percent tin, and where the atomic percentage of the total amount of silver plus copper is about 3 times greater than the atomic percentage of tin.
    Type: Grant
    Filed: March 28, 1975
    Date of Patent: October 12, 1976
    Assignee: Sybron Corporation
    Inventor: Harold H. Simpson
  • Patent number: 3985920
    Abstract: The adhesive properties of vinyl resins are substantially improved by adding thereto or mixing therewith polyfunctional carboxylic aziridinyl esters, either in the pure form or dissolved in inert organic liquid media. The aziridinyl ester may be added to vinyl resin which are in solution, to vinyl resins which are in the form of organosols or plastisols, or to vinyl resins which are in the form of solids (powders). The process of this invention has found particular utility in the coating of vinyl resin upon non-porous surfaces.
    Type: Grant
    Filed: August 12, 1974
    Date of Patent: October 12, 1976
    Assignee: Sybron Corporation
    Inventor: David Travis
  • Patent number: 3975192
    Abstract: A dental amalgam which comprises about 40 to 50 weight percent mercury and about 50 to 60 weight percent of an alloy which comprises 46 to 53 weight percent silver, 18 to 24 weight percent copper and 29 to 34 weight percent tin, and where the atomic percentage of the total amount of silver plus copper is about 3 times greater than the atomic percentage of tin.
    Type: Grant
    Filed: March 28, 1975
    Date of Patent: August 17, 1976
    Assignee: Sybron Corporation
    Inventor: Harold H. Simpson