Patents by Inventor Karina H. Guillen

Karina H. Guillen 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).

  • Polysaccharide and protein-polysaccharide cross-linked hydrogels for soft tissue augmentation
    Patent number: 8691279
    Abstract: Disclosed herein are cohesive soft tissue fillers, for example, dermal and subdermal fillers, based on hyaluronic acids and optionally including proteins. In one aspect, hyaluronic acid-based compositions described herein include zero-length cross-linked moieties and optionally at least one active agent. The present hyaluronic acid-based compositions have enhanced flow characteristics, hardness, and persistence compared to known hyaluronic acid-based compositions. Methods and processes of preparing such hyaluronic acid-based compositions are also provided.
    Type: Grant
    Filed: March 21, 2011
    Date of Patent: April 8, 2014
    Assignee: Allergan, Inc.
    Inventors: Karina H. Guillen, Ahmet Tezel
  • METHODS OF MAKING HYDROGELS FOR SOFT TISSUE AUGMENTATION
    Publication number: 20140094431
    Abstract: Hair-like shaped crosslinked hydrogels and methods for preparing such crosslinked hydrogels and are provided.
    Type: Application
    Filed: December 6, 2013
    Publication date: April 3, 2014
    Applicant: Allergan, Inc.
    Inventors: Dimitrios Stroumpoulis, Karina H. Guillen
  • POLYSACCHARIDE AND PROTEIN-POLYSACCHARIDE CROSS-LINKED HYDROGELS FOR SOFT TISSUE AUGMENTATION
    Publication number: 20110229574
    Abstract: Disclosed herein are cohesive soft tissue fillers, for example, dermal and subdermal fillers, based on hyaluronic acids and optionally including proteins. In one aspect, hyaluronic acid-based compositions described herein include zero-length cross-linked moieties and optionally at least one active agent. The present hyaluronic acid-based compositions have enhanced flow characteristics, hardness, and persistence compared to known hyaluronic acid-based compositions. Methods and processes of preparing such hyaluronic acid-based compositions are also provided.
    Type: Application
    Filed: March 21, 2011
    Publication date: September 22, 2011
    Applicant: ALLERGAN, INC.
    Inventors: Karina H. Guillen, Ahmet Tezel