Patents by Inventor Efren Perez

Efren Perez 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).

  • Perfumed abrasive pad and manufacturing procedure
    Patent number: 7015156
    Abstract: The a present invention is related to an abrasive cleaning article, made of spread abrasive particles and microencapsulated particles of an aromatizing substance contained in urea-formaldehyde walls, through a three-dimensional non-woven web of fiber that are bonded to the web by a resin adhesive. The item, of any geometric shape, offers the user a sensation of cleanliness due to the constant presence of a “fresh” scent associated to the fiber; the scent remains during the whole life of the abrasive item since the microcapsules break partially during the normal use of the item. The invention also refers to the production process of such abrasive item.
    Type: Grant
    Filed: July 13, 2001
    Date of Patent: March 21, 2006
    Assignee: 3M Innovative Properties Company
    Inventors: Raul Maldonado, Efren Perez
  • Abrasive item for cleaning wit scented abrasive fibres
    Publication number: 20040242133
    Abstract: The a present invention is related to an abrasive cleaning article, made of spread abrasive particles and microencapsulated particles of an aromatizing substance contained in urea-formaldehyde walls, through a three-dimensional non-woven web of fiber that are bonded to the web by a resin adhesive. The item, of any geometric shape, offers the user a sensation of cleanliness due to the constant presence of a “fresh” scent associated to the fiber; the scent remains during the whole life of the abrasive item since the microcapsules break partially during the normal use of the item. The invention also refers to the production process of such abrasive item.
    Type: Application
    Filed: July 12, 2004
    Publication date: December 2, 2004
    Inventors: Raul Maldonado Arellano, Efren Perez Vazquez