Patents by Inventor Donald Ratliff

Donald Ratliff 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: 20240131706
    Abstract: Apparatuses, systems, and techniques to perform collision-free motion generation (e.g., to operate a real-world or virtual robot). In at least one embodiment, at least a portion of the collision-free motion generation is performed in parallel.
    Type: Application
    Filed: May 22, 2023
    Publication date: April 25, 2024
    Inventors: Balakumar Sundaralingam, Siva Kumar Sastry Hari, Adam Harper Fishman, Caelan Reed Garrett, Alexander James Millane, Elena Oleynikova, Ankur Handa, Fabio Tozeto Ramos, Nathan Donald Ratliff, Karl Van Wyk, Dieter Fox
  • Publication number: 20220371184
    Abstract: Apparatuses, systems, and techniques provide a policy that can be executed to cause a machine to move. In at least one embodiment, a first policy layer is provided to cause the machine to execute a first motion that causes the machine to accelerate to reach an unbiased state. A second policy layer is provided to cause the machine to execute a second motion without influencing the unbiased state to be reached by machine. The policy can comprise the first and second policy layers.
    Type: Application
    Filed: April 26, 2022
    Publication date: November 24, 2022
    Inventors: Nathan Donald Ratliff, Karl Van Wyk, Man Xie, Anqi Li, Muhammad Asif Rana
  • Publication number: 20210146531
    Abstract: A robot is controlled using a combination of model-based and model-free control methods. In some examples, the model-based method uses a physical model of the environment around the robot to guide the robot. The physical model is oriented using a perception system such as a camera. Characteristics of the perception system may be are used to determine an uncertainty for the model. Based at least in part on this uncertainty, the system transitions from the model-based method to a model-free method where, in some embodiments, information provided directly from the perception system is used to direct the robot without reliance on the physical model.
    Type: Application
    Filed: February 3, 2020
    Publication date: May 20, 2021
    Inventors: Jonathan Tremblay, Dieter Fox, Michelle Lee, Carlos Florensa, Nathan Donald Ratliff, Animesh Garg, Fabio Tozeto Ramos
  • Patent number: 5762968
    Abstract: Method and apparatus for producing imitation grill marks on food items without applying heat to the items in forming the grill marks. The apparatus has a sprayer that applies a colorized solution to the items and a press that forms indentations on the items, impregnating the solution into the indentations and permitting the solution to collect in the indentations.
    Type: Grant
    Filed: March 12, 1996
    Date of Patent: June 9, 1998
    Inventors: Scott Duane Swaidner, Donald Ratliff