Patents by Inventor Gregory C. Langford

Gregory C. Langford 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).

  • Powerful sound for powerful engines
    Publication number: 20040195040
    Abstract: An air induction system includes a duct that defines a passage for airflow to the engine. The duct is substantially clear of obstructions to improve airflow that in turn provides improved engine performance. A speaker generates sounds to provide a desirable engine sound. A controller drives the speaker to generate desired tones and sounds responsive to engine operation. The sounds generated by the speaker enhance, improve and provide desirable and proportional acoustic performance more reflective of the improved engine performance provided by the improved airflow.
    Type: Application
    Filed: April 5, 2004
    Publication date: October 7, 2004
    Inventors: Manish Vaishya, John R. Mammarella, Gregory C. Langford, David Maclay