Patents by Inventor Frederic Ricchiero

Frederic Ricchiero 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).

  • Fluorescent latex containing at least two fluorochromes, process for producing it and application thereof
    Patent number: 5716855
    Abstract: A fluorescent latex with particles containing at least one encapsulated hydrophobic fluorochrome A (acceptor) and at least one encapsulated hydrophobic fluorochrome D (donor), wherein A is different from D and exposure to light radiation enables the emission from fluorochrome D to excite fluorochrome A, and a method for producing said latex and its use as a marker, particularly a biological marker, are also disclosed.
    Type: Grant
    Filed: March 1, 1996
    Date of Patent: February 10, 1998
    Assignee: Societe Prolabo
    Inventors: Dan Lerner, Frederic Ricchiero, Joel Richard, Dominique Teychenne, Sophie Vaslin
  • Fluorescent latices having very low detection thresholds for fluorescent emission
    Patent number: 5607864
    Abstract: Fluorescent latices, well suited for a wide variety of analytical techniques, comprise polymer particles having at least one hydrophobic fluorochrome encapsulated therein, notably at least one condensed polyaromatic compound or derivative thereof, or a tetraphenylporphine and/or organometallic complex thereof, and have a detection threshold for fluorescence which is less than or equal to 10.sup.-12 mol of particles per liter of latex.
    Type: Grant
    Filed: October 7, 1994
    Date of Patent: March 4, 1997
    Assignee: Societe Prolabo
    Inventors: Frederic Ricchiero, Joel Richard, Sophie Vaslin
  • Photoactivable bleaching/detergent composition
    Patent number: 4668418
    Abstract: Detergent compositions adopted for bleaching via photoactivation, e.g., by irradiation with visible light, are comprised of (i) at least one sensitizing agent of xanthene dyestuff type, e.g., a fluorescein, and (ii) at least one cyclic tertiary mono-, di- or tetramine, e.g., DABCO.
    Type: Grant
    Filed: May 15, 1985
    Date of Patent: May 26, 1987
    Assignee: Rhone-Poulenc Chimie de Base
    Inventor: Frederic Ricchiero