Patents by Inventor Loek Van Der Heijden

Loek Van Der Heijden 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).

  • Greenhouse
    Patent number: 6978573
    Abstract: A greenhouse comprising two roof halves (4, 4?) together forming a roof (3) of V-shaped cross-section, which can be moved between a closed position and an open position, a special feature of said greenhouse being the fact that the roof (4, 4?) can be moved independently of each other both in upward and in downward direction relative to the closed position within certain limits.
    Type: Grant
    Filed: November 9, 2001
    Date of Patent: December 27, 2005
    Assignee: Excellent Glastuinbouwsystemen B.V.
    Inventor: Loek Van Der Heijden
  • Greenhouse
    Publication number: 20040049975
    Abstract: A greenhouse comprising two roof halves (4, 4′) together forming a roof (3) of V-shaped cross-section, which can be moved between a closed position and an open position, a special feature of said greenhouse being the fact that the roof (4, 4′) can be moved independently of each other both in upward and in downward direction relative to the closed position within certain limits.
    Type: Application
    Filed: September 29, 2003
    Publication date: March 18, 2004
    Inventor: Loek Van Der Heijden