Patents by Inventor Joseph F. Jaworzyn

Joseph F. Jaworzyn 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).

  • Oral hygiene compositions and polymers active therein
    Patent number: 5414060
    Abstract: Oral hygiene compositions effective for preventing the adherent deposition of cariogenic bacteria on teeth comprise as active constituents polymers having defined repeating units comprising hydrocarbyl groups with pendant carboxyl and pendant polyalkylene oxide groups in defined ratio. The polymers themselves, their preparation, and a process for treating teeth with the compositions are also claimed.
    Type: Grant
    Filed: May 9, 1994
    Date of Patent: May 9, 1995
    Assignee: Imperial Chemical Industries PLC
    Inventors: Martyn Humphries, Jozef Nemcek, Joseph F. Jaworzyn, John B. Cantwell, John J. Gerrard
  • Oral hygiene compositions and polymers active therein
    Patent number: 5336728
    Abstract: Oral hygiene compositions effective for preventing the adherent deposition of cariogenic bacteria on teeth comprise as active constituents polymers having defined repeating units comprising hydrocarbyl groups with pendant carboxyl and pendant polyalkylene oxide groups in defined ratio. The polymers themselves, their preparation, and a process for treating teeth with the compositions are also claimed.
    Type: Grant
    Filed: September 18, 1991
    Date of Patent: August 9, 1994
    Assignee: Imperial Chemical Industries PLC
    Inventors: Martyn Humphries, Jozef Nemcek, Joseph F. Jaworzyn, John B. Cantwell, John J. Gerrard
  • Oral hygiene compositions and polymers active therein
    Patent number: 5079288
    Abstract: Oral hygiene compositions effective for preventing the adherent deposition of cariogenic bacteria on teeth comprise as active constituents polymers having defined repeating units comprising hydrocarbyl groups with pendant carboxyl and pendant polyalkylene oxide groups in defined ratio. The polymers themselves, their prepartion, and a process for treating teeth with the compositions are also claimed.
    Type: Grant
    Filed: March 19, 1990
    Date of Patent: January 7, 1992
    Assignee: Imperial Chemical Industries PLC
    Inventors: Martyn Humphries, Jozef Nemcek, Joseph F. Jaworzyn, John B. Cantwell, John J. Gerrard
  • Oral hygiene compositions and polymers active therein
    Patent number: 4963347
    Abstract: Oral hygiene compositions effective for preventing the adherent deposition of cariogenic bacteria on teeth comprise as active constituents polymers having defined repeating units comprising hydrocarbyl groups with pendant carboxyl and pendant polyalkylene oxide groups in defined ratio. The polymers themselves, their preparation, and a process for treating teeth with the compositions are also claimed.
    Type: Grant
    Filed: January 17, 1988
    Date of Patent: October 16, 1990
    Assignee: Imperial Chemical Industries plc
    Inventors: Martyn Humphries, Jozef Nemcek, Joseph F. Jaworzyn, John B. Cantwell, John J. Gerrard
  • Photocurable dental filling compositions
    Patent number: 4110184
    Abstract: A dental filling composition comprising(a) from 60 to 80% by weight of the composition of an inorganic particulate filler selected from glass, quartz or silica of which at least 50% of the particles have a maximum dimension of not greater than 300 microns, and(b) a polymerizable material comprising:A polymerizable prepolymer being the reaction product of a urethane prepolymer and 2-hydroxy-ethyl methacrylate;The said urethane prepolymer being the reaction product of a di-isocyanate selected from the group consisting of 4,4'-di-isocyanatodiphenylmethane, hexamethylene di-isocyanate, 4,4'-dicyclohexylmethane di-isocyanate and 2,4-tolylene di-isocyanate, and a diol being the condensate obtained by reacting 2,2-bis-(p-hydroxyphenyl)propane and propylene oxide in a molar ratio of 1:2;Up to 100% by weight of the polymerizable prepolymer of methacrylic acid or an ester of methacrylic acid selected from the group consisting of methyl methacrylate, ethylene glycol dimethacrylate, hydroxyethyl methacrylate, triethylene
    Type: Grant
    Filed: October 11, 1974
    Date of Patent: August 29, 1978
    Assignee: Imperial Chemical Industries Limited
    Inventors: Edward C. Dart, John B. Cantwell, James R. Traynor, Joseph F. Jaworzyn, Jozef Nemcek