Patents by Inventor Sandra Ottensmann

Sandra Ottensmann 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).

  • Polymer formulations for delivery of bioactive materials
    Patent number: 8529922
    Abstract: PLGA, PLA and PGA polymers which have crystallinity resulting from the presence of long chain alkyl groups in terminal units. The polymers are particularly useful for drug delivery.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: September 10, 2013
    Assignee: Landec Corporation
    Inventors: David Taft, Stelios Tzannis, Wei-Guo Dai, Sandra Ottensmann, Steven Bitler, Qiang Zheng, Adam Bell
  • Method for formulating a controlled-release pharmaceutical formulation
    Patent number: 8399007
    Abstract: Methods for making formulations of drugs and crystalline side chain polymers which formulations provide controlled and/or sustained release drug formulations.
    Type: Grant
    Filed: September 25, 2008
    Date of Patent: March 19, 2013
    Assignee: Landec Corporation
    Inventors: David Taft, Stelios Tzannis, Wei-Guo Dai, Sandra Ottensmann, Steven Bitler, Qiang Zheng, Adam Bell
  • Polymer Formulations for Delivery of Bioactive Materials
    Publication number: 20120142581
    Abstract: PLGA, PLA and PGA polymers which have crystallinity resulting from the presence of long chain alkyl groups in terminal units. The polymers are particularly useful for drug delivery.
    Type: Application
    Filed: February 14, 2012
    Publication date: June 7, 2012
    Applicant: Landec Corporation
    Inventors: DAVID TAFT, STELIOS TZANNIS, WEI-GUO DAI, SANDRA OTTENSMANN, STEVEN BITLER, QIANG ZHENG, ADAM BELL
  • Polymer formulations for delivery of bioactive materials
    Patent number: 8114883
    Abstract: Delivery of drugs in association with PLGA polymers which have crystallinity resulting from the presence of long chain alkyl groups in terminal units.
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: February 14, 2012
    Assignee: Landec Corporation
    Inventors: David Taft, Stelios Tzannis, Wei-Guo Dai, Sandra Ottensmann, Steven Bitler, Qiang Zheng, Adam Bell
  • Systems and methods for delivery of drugs
    Publication number: 20090263346
    Abstract: Systems and methods for delivering drugs. Crystalline polymeric systems, referred to as CYC carriers, are associated with the drugs, through chemical bonding or through physical association. The crystallinity of the CYC carriers results from the presence of crystallizable side chains, for example long chain n-alkyl moieties, which results in relatively low and sharp melting temperatures. One class of CYC carriers, referred to as CYSC polymers, have a majority of the crystallizable side chains pendant from the polymer backbone. Another class of CYC carriers, referred to as ECC polymers, have a majority of the crystallizable side chains attached to terminal units of the polymer backbone. The ECC polymers can for example be obtained by modification of PLGA polymers. The CYC carriers in another class are non-polymeric.
    Type: Application
    Filed: December 4, 2008
    Publication date: October 22, 2009
    Inventors: David Taft, Steven Bitler, Qiang Zheng, Stelios Tzannis, Adam Bell, Wei-Guo Dai, Sandra Ottensmann
  • Method for formulating a controlled-release pharmaceutical formulation
    Publication number: 20090252777
    Abstract: Methods for making formulations of drugs and crystalline side chain polymers which formulations provide controlled and/or sustained release drug formulations.
    Type: Application
    Filed: September 25, 2008
    Publication date: October 8, 2009
    Applicant: Landec Corporation
    Inventors: David Taft, Stelios Tzannis, Wei-Guo Dai, Sandra Ottensmann, Steven Bitler, Qiang Zheng, Adam Bell
  • Polymer formulations for delivery of bioactive materials
    Publication number: 20090209558
    Abstract: Delivery of drugs in association with PLGA polymers which have crystallinity resulting from the presence of long chain alkyl groups in terminal units.
    Type: Application
    Filed: October 10, 2008
    Publication date: August 20, 2009
    Applicant: Landec Corporation
    Inventors: David Taft, Stelios Tzannis, Wei-Guo Dai, Sandra Ottensmann, Steven Bitler, Qiang Zheng, Adam Bell