Patents by Inventor Daniel P. Sheehan

Daniel P. Sheehan 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).

  • Publication number: 20240307830
    Abstract: The present disclosure provides various embodiments of asymmetric thermal diffusion membranes, devices, systems, and methods. Chemically asymmetric membranes comprise chemical potential gradients allowing for thermally driven asymmetrical diffusion of chemical species. Devices and systems may comprise thermally driven chemically asymmetric membranes and to utilize thermal ambient energy for chemical separation, concentration, dilution as well as for energy generation and storage.
    Type: Application
    Filed: February 1, 2022
    Publication date: September 19, 2024
    Inventor: Daniel P. Sheehan
  • Publication number: 20230141334
    Abstract: Systems and methods include a geological structure modeling tool for generating a geological facies model for a target well with decision tree-based models. The decision tree-based models use geographic facie class as a target variable and receives an input data set including well log data, core data, and geological facie class labels (e.g., generated by a subject matter expert (SME)). A predictive analytics model using the decision tree-based models generates, based on an input of target well data, the geological facies model to represent underlying geological structures at a candidate location (e.g., for drilling a well) or a section of a subsurface reservoir (e.g., for resource characterization). Vertical context data can be provided to the decision tree-based models and the input data set can be artificially boosted based on geological facies class label occurrences. A well development action is selected for the candidate location based on the geological facies model.
    Type: Application
    Filed: November 8, 2022
    Publication date: May 11, 2023
    Inventors: Alexander J. Wagner, Christopher S. Olse S. Olsen, Tahmineh Nazari, Megan Potter, Thiago B. Simoes Correa, Daniel P. Sheehan, Brackin A. Smith, Douglas S. Moore, Randy E. John, Zachary A. Wallace
  • Patent number: 9212828
    Abstract: An Epicatalytic Thermal Diode (ETD) includes one or more ETD cells. Each cell comprises first and second surfaces with a cavity between them, which contains a gas that is epicatalytically active with respect to the pair of surfaces. The surfaces chemically interact with the gas such that the gas dissociates at a faster rate proximate to the first surface than it does proximate to the second surface. Thus, a steady-state temperature differential between the first surface and the second surface is created and maintained. In various applications, multiple ETD cells are connected in series and/or parallel.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: December 15, 2015
    Assignee: Paradigm Energy Research Corporation
    Inventor: Daniel P. Sheehan
  • Publication number: 20140352682
    Abstract: An Epicatalytic Thermal Diode (ETD) includes one or more ETD cells. Each cell comprises first and second surfaces with a cavity between them, which contains a gas that is epicatalytically active with respect to the pair of surfaces. The surfaces chemically interact with the gas such that the gas dissociates at a faster rate proximate to the first surface than it does proximate to the second surface. Thus, a steady-state temperature differential between the first surface and the second surface is created and maintained. In various applications, multiple ETD cells are connected in series and/or parallel.
    Type: Application
    Filed: May 28, 2014
    Publication date: December 4, 2014
    Inventor: Daniel P. Sheehan