Patents by Inventor Sepehr Tehrani

Sepehr Tehrani 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).

  • Aqueous inkjet ink compositions made from high viscosity latexes
    Patent number: 12110402
    Abstract: Aqueous inkjet ink compositions are provided. In an embodiment, such an aqueous inkjet ink composition comprises water; resin particles; a colorant; and optionally, a wax. The resin particles comprise a polymerization product of reactants comprising a monomer, an acidic monomer, a hydrophilic monomer, a difunctional monomer, and a reactive surfactant. The acidic monomer, the hydrophilic monomer, and the difunctional monomer may be present at an amount in a range of from about 10 weight % to about 30 weight % in the resin particles. Methods of forming and using the aqueous inkjet ink compositions are also provided.
    Type: Grant
    Filed: April 14, 2021
    Date of Patent: October 8, 2024
    Assignee: XEROX CORPORATION
    Inventors: Sepehr Tehrani, Syed Mohsin Ali, Carlos Dondon, Biby Esther Abraham, C. Geoffrey Allen, Mihaela Maria Birau, Jennifer L. Belelie
  • Coating to Cool a Surface by Passive Radiative Cooling
    Publication number: 20240101833
    Abstract: Disclosed herein in is a radiative cooling formulation including a solvent for providing a viscosity of a radiative cooling material for application onto a surface to be passively cooled. The radiative cooling formulation includes a binder for the radiative cooling material's integrity and bonding to the surface to be passively cooled. The radiative cooling formulation includes a polymer, which, in combination with the binder, provides one or more properties in the radiative cooling material, including a reflectance of or greater than 55% in a wavelengths range of 0.3 to 2.5 microns and a first thermal emissivity peak value greater than 0.85 at a first wavelength in a range of 8 to 13 microns (?m). For example, the polymer is a latex material including a styrene based copolymer.
    Type: Application
    Filed: May 9, 2023
    Publication date: March 28, 2024
    Inventors: Sepehr TEHRANI, Quentin VAN OVERMEERE, Scott Alan ELROD, Scott E. SOLBERG, Gabriel IFTIME, Ravi NEELAKANTAN, Bernard D. CASSE
  • AQUEOUS INKJET INK COMPOSITIONS MADE FROM HIGH VISCOSITY LATEXES
    Publication number: 20220162462
    Abstract: Aqueous inkjet ink compositions are provided. In an embodiment, such an aqueous inkjet ink composition comprises water; resin particles; a colorant; and optionally, a wax. The resin particles comprise a polymerization product of reactants comprising a monomer, an acidic monomer, a hydrophilic monomer, a difunctional monomer, and a reactive surfactant. The acidic monomer, the hydrophilic monomer, and the difunctional monomer may be present at an amount in a range of from about 10 weight % to about 30 weight % in the resin particles. Methods of forming and using the aqueous inkjet ink compositions are also provided.
    Type: Application
    Filed: April 14, 2021
    Publication date: May 26, 2022
    Inventors: Sepehr Tehrani, Syed Mohsin Ali, Carlos Dondon, Biby Esther Abraham, C. Geoffrey Allen, Mihaela Maria Birau, Jennifer L. Belelie