Patents by Inventor David James Owen

David James Owen 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).

  • Patent number: 10311525
    Abstract: A social networking system classifies content items according to their qualities for ranking and selection of content items to present to users within, for example, a newsfeed. Low-quality content items that are unlikely to be interesting or relevant to a user may be distinguished though they may appear to be popular among users in the social networking system. The social networking system identifies within the content items one or more features that are indicators of the quality of the content items. The social networking system can use one or more classifiers to evaluate the content items based on the features, and it can compute a quality metric indicating the quality of a content item based on the result obtained from the classifiers. The quality metric can be used in the ranking and selection of a set of content items to provide to the user.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: June 4, 2019
    Assignee: Facebook, Inc.
    Inventors: Erich James Owens, David Vickrey
  • Publication number: 20170189543
    Abstract: The present invention generally relates to macromolecules of dendrimer-drug conjugates. In particular, the invention relates to macromolecules comprising a pharmaceutically active agent, such as a protein or peptide, attached to a core of a dendrimer derived from branched building units, such as lysine or lysine analogues. The invention also relates to the synthesis of the dendrimers and macromolecules, and the use of such macromolecules, particularly in therapeutic applications, and pharmaceutical compositions comprising them.
    Type: Application
    Filed: June 5, 2015
    Publication date: July 6, 2017
    Inventors: David James Owen, Pauline Stanislawski, Michael Giannis, Oliver Bernhard
  • Patent number: 9585387
    Abstract: PEHAM dendrimers of the formula: Specific PEHAM dendrimers are used in a formulation with an active agent for agricultural purposes. In particular, the PEHAM dendrimers may be used for increasing the efficacy of the active agent in various ways, such as by improving solubility of the active agent in the formulation, by improving adhesion and penetration of the active agent to plant surfaces, or by improving the water-fastness of the active agent to the plant or seed. The PEHAM dendrimers may also increase the efficacy of the active agent by increasing soil penetration of the active agent to reach the plant roots or under soil parts, by reducing soil adhesion of the active agent to reach the plant roots or under soil parts, or by reducing enzymatic degradation of the active agent by the plant or seed or microorganisms in the soil.
    Type: Grant
    Filed: February 16, 2015
    Date of Patent: March 7, 2017
    Assignee: STARPHARMA PTY LTD
    Inventors: Ryan T. Hayes, David James Owen, Abhay Singh Chauhan, Veera Reddy Pulgam, Harsh Vardhan
  • Publication number: 20160220689
    Abstract: A macromolecule comprising a dendrimer having surface amino groups to which at least one platinum-containing moiety is attached is provided. The macromolecule may have a plurality of platinum-containing moieties attached to the surface amino groups. Alternatively, the macromolecule may comprise a dendrimer having surface amino groups to which at least two different moieties are attached, a first moiety being a platinum-containing moiety and the second moiety being a pharmacokinetic modifying agent or targeting agent. Pharmaceutical compositions comprising the macromolecules and uses of the macromolecules for treating or suppressing the growth of a cancer is also described.
    Type: Application
    Filed: September 10, 2014
    Publication date: August 4, 2016
    Inventors: David James Owen, Brian Devlin Kelly, Gareth Rhys Lewis, Rashmi Pathak
  • Publication number: 20110230348
    Abstract: Specific PEHAM dendrimers are used in a formulation with an active agent for agricultural purposes, particularly for increasing the efficacy of the active agent in various ways, such as by improving solubility of the active agent in the formulation, by improving adhesion and penetration of the active agent to plant surfaces, by improving the water-fastness of the active agent to the plant or seed, by increasing soil penetration of the active agent to reach the plant roots or under soil parts, or by reducing soil adhesion of the active agent to reach the plant roots or under soil parts, or reducing enzymatic degradation of the active agent by the plant or seed or microorganisms in the soil.
    Type: Application
    Filed: May 4, 2011
    Publication date: September 22, 2011
    Applicants: Dendritic Nanotechnologies, Inc., Starpharma Pty Ltd
    Inventors: Ryan T. Hayes, David James Owen, Abhay Singh Chauhan, Veera Reddy Pulgam