Patents by Inventor Glenn M. Russo

Glenn M. Russo 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).

  • Process for rapid access development of silver halide films using pyridinium as development accelerators
    Patent number: 5384232
    Abstract: A process of developing exposed silver halide elements comprises developing said element in a developer in the presence of a development accelerator compound as defined. The development accelerator compounds include pyridinium, or pyridinium and and imidazolium compounds. The process is applicable to standard and hydrazine-containing films and to hydroquinone and/or ascorbic acid-based developers. The development accelerator may be incorporated into the developer or into the silver halide emulsion.
    Type: Grant
    Filed: March 30, 1993
    Date of Patent: January 24, 1995
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Julie C. Bishop, Dominic M. Chan, Dennis S. Donald, Ludovic Fodor, William R. Pangratz, Glenn M. Russo, John R. Shock
  • Alkylpolyol ethers as cosolvents for ink jet inks
    Patent number: 5268027
    Abstract: An aqueous ink jet ink comprises an aqueous carrier medium, a colorant and at least one alkylpolyol ether cosolvent selected from the group of alkyl-bis-oxyalkyldiols, olefinic oxyalkyl diols, alkyl-tris-oxyalkyldiols and alkyl-tetrakis-oxyalkyldiols exhibit rapid drying, excellent image definition, are storage stable, have low odor and have excellent decap properties.
    Type: Grant
    Filed: December 22, 1992
    Date of Patent: December 7, 1993
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Dominic M. Chan, Howard Matrick, Glenn M. Russo
  • Derivatives of polyoxyalkyleneamines as cosolvents for aqueous ink jet inks
    Patent number: 5250109
    Abstract: Aqueous ink jet ink compositions comprising an aqueous carrier medium, a colorant, and cosolvents which are selected amide, sulfonamide, urea and thiourea derivatives of polyoxyalkyleneamines having a solubility in water of at least 4.5% at 25.degree. C., have high optical density, excellent print quality, excellent dispersion stability, and resist film formation on resistors without adversely affecting decap time or crusting.
    Type: Grant
    Filed: December 22, 1992
    Date of Patent: October 5, 1993
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Dominic M. Chan, Howard Matrick, Glenn M. Russo
  • Nitrogen-containing organic cosolvents for aqueous ink jet inks
    Patent number: 5173112
    Abstract: Aqueous ink jet ink compositions comprising an aqueous carrier medium, a colorant, such as a pigment dispersion or dye, and a nitrogen-containing organic cosolvent having a solubility in water of at least 4.5 % at 25.degree. C., exhibit freedom from plug formation and excellent storage stability.
    Type: Grant
    Filed: April 3, 1992
    Date of Patent: December 22, 1992
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Howard Matrick, Dominic M. Chan, Glenn M. Russo