Patents by Inventor Mark Jonathan Swift

Mark Jonathan Swift 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).

  • Sound absorbing material
    Publication number: 20040099476
    Abstract: Sound absorbing board (10) is made from recycled high density foam granulate (12) that has been mixed with a binder (14) and consolidated under pressure. Pores (16) are present in spaces between the granules. Each granule includes small pores (18). Sound is absorbed by thermal diffusion and viscous friction.
    Type: Application
    Filed: June 12, 2003
    Publication date: May 27, 2004
    Inventors: Mark Jonathan Swift, David Charles Hothersall, Kirill Vjatcheslavovitch Horoshenkov