Patents by Inventor John Leffingwell

John Leffingwell 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: 20230281955
    Abstract: Various embodiments of the disclosure are directed to a scene reconstruction and machine learning system. In embodiments, the system comprises a storage medium configured to store image data, one or more scene models, one or more relightable matter fields, and information related to a machine learning model. In one or more embodiments, the system comprises an input circuit configured to receive image data characterizing light in a scene. In embodiments the system includes a processor. In embodiments the processor configured to reconstruct a scene model representing the scene using the image data. In embodiments the processor is configured to extract a relightable matter field from the scene model representing the object, store the scene model and the relightable matter field representing the object in the storage medium, apply the relightable matter field as an input to the machine learning model, and generate an output from the machine learning model.
    Type: Application
    Filed: March 7, 2023
    Publication date: September 7, 2023
    Inventors: David Scott Ackerson, John Leffingwell, Alexandru Rablau, Stara Diamond, Brett-Michael Thomas Green, Philip Anthony McBride, Sakshi Madan Kakde
  • Publication number: 20070059417
    Abstract: Described is the use of the cooling agents N-Ethyl-p-menthane-3-carboxamide and 2-Isopropyl-N,2,3-trimethylbutyramide (popularly known as WS-3 and WS-23 respectively) and mixtures thereof as flavor and saltiness enhancers wherein the cooling properties are imperceptible or barely perceptible.
    Type: Application
    Filed: September 15, 2005
    Publication date: March 15, 2007
    Inventors: Ashok Moza, Stephen Rohde, John Leffingwell, Diane Leffingwell
  • Publication number: 20070048424
    Abstract: Disclosed is a liquid composition containing N-Ethyl-p-menthane-3-carboxamide and 2-Isopropyl-N,2,3-trimethylbutyramide (popularly known as WS-3 and WS-23 respectively), its preparation and its applications as a cooling sensate and as a flavoring agent. The present invention provides a composition characterized in that it comprises N-Ethyl-p-menthane-3-carboxamide and 2-Isopropyl-N,2,3-trimethylbutyramide in a ratio by weight in the range of 60/40 to 30/70 with the corresponding crystallization point being below 15° C. Preferably a weight ratio of 52/48 to 42/58 is employed corresponding to a crystallization point below ?20° C. Such compositions have the advantages of being liquid at room temperature, easy to use as a cooling agent or a flavoring agent with no need to melt the normally crystalline forms of 2-Isopropyl-N,2,3-trimethylbutyramide (melting point 62° C.) and N-Ethyl-p-menthane-3-carboxamide (melting point 98.7° C.).
    Type: Application
    Filed: September 1, 2005
    Publication date: March 1, 2007
    Inventors: Ashok Moza, Hong Sun, John Leffingwell, Diane Leffingwell, Stephen Rohde
  • Publication number: 20030122872
    Abstract: A graphics computer programming language, called the BDT Language, is disclosed for the description of three-dimensional objects and real-time interactions among them in a three-dimensional space. The BDT Language consists of a User Level Command Script and a corresponding Language Level Program Code. The User Level Command Script consists of command lines each having a mnemonical name followed by a list of arguments. The Language Level Program Code consists of a corresponding number of program lines each having an operation code for the command followed by a list of arguments. The Language Level Program Code is further compressed into a BDT File for efficient storage and download for viewing by a client user with a Web Browser. A BDT Interpreter is also devised to parse the BDT File into instructions for a separate display Engine for final rendition into the originally created set of three-dimensional objects.
    Type: Application
    Filed: December 31, 2001
    Publication date: July 3, 2003
    Inventors: Kuo-Chang Chiang, Tuan Phan, John Leffingwell