Patents by Inventor John Engwer

John Engwer 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).

  • Patent number: 6921484
    Abstract: An erosion barrier implementing the invention is a filter berm advantageously comprising a biodegradable “sock” filled with a biodegradable material, e.g., using conventional blower techniques. The sock is composed of materials, such as burlap, that naturally rot and decompose. Thus, when the sock decays, it merges into the surrounding soil and thus leaves no trace. Preferably, the biodegradable material comprises compost that is pre-seeded to allow desired vegetation to grow from the compost into the underlying soil. In this manner, the vegetation anchors the berm and prevents it from eroding, even when its exterior sock is fully decomposed. In an exemplary embodiment, the sock may be constructed with larger holes on its bottom so as to allow the material in the berm to effectively bind and adhere to the soil beneath.
    Type: Grant
    Filed: July 15, 2004
    Date of Patent: July 26, 2005
    Inventor: John Engwer
  • Publication number: 20040256313
    Abstract: An erosion barrier implementing the invention is a filter berm advantageously comprising a biodegradable “sock” filled with a biodegradable material, e.g., using conventional blower techniques. The sock is composed of materials, such as burlap, that naturally rot and decompose. Thus, when the sock decays, it merges into the surrounding soil and thus leaves no trace. Preferably, the biodegradable material comprises compost that is pre-seeded to allow desired vegetation to grow from the compost into the underlying soil. In this manner, the vegetation anchors the berm and prevents it from eroding, even when its exterior sock is fully decomposed. In an exemplary embodiment, the sock may be constructed with larger holes on its bottom so as to allow the material in the berm to effectively bind and adhere to the soil beneath.
    Type: Application
    Filed: July 15, 2004
    Publication date: December 23, 2004
    Inventor: John Engwer
  • Patent number: 6824681
    Abstract: An erosion barrier implementing the invention is a filter berm advantageously comprising a biodegradable “sock” filled with a biodegradable material, e.g., using conventional blower techniques. The sock is composed of materials, such as burlap, that naturally rot and decompose. Thus, when the sock decays, it merges into the surrounding soil and thus leaves no trace. Preferably, the biodegradable material comprises compost that is pre-seeded to allow desired vegetation to grow from the compost into the under-lying soil. In this manner, the vegetation anchors the berm and prevents it from eroding, even when its exterior sock is fully decomposed. In an exemplary embodiment, the sock may be constructed with larger holes on its bottom so as to allow the material in the berm to effectively bind and adhere to the soil beneath.
    Type: Grant
    Filed: October 25, 2002
    Date of Patent: November 30, 2004
    Inventor: John Engwer
  • Publication number: 20040079699
    Abstract: An erosion barrier implementing the invention is a filter berm advantageously comprising a biodegradable “sock” filled with a biodegradable material, e.g., using conventional blower techniques. The sock is composed of materials, such as burlap, that naturally rot and decompose. Thus, when the sock decays, it merges into the surrounding soil and thus leaves no trace. Preferably, the biodegradable material comprises compost that is pre-seeded to allow desired vegetation to grow from the compost into the under-lying soil. In this manner, the vegetation anchors the berm and prevents it from eroding, even when its exterior sock is fully decomposed. In an exemplary embodiment, the sock may be constructed with larger holes on its bottom so as to allow the material in the berm to effectively bind and adhere to the soil beneath.
    Type: Application
    Filed: October 25, 2002
    Publication date: April 29, 2004
    Inventor: John Engwer