Patents by Inventor Heinrich-Josef Clement

Heinrich-Josef Clement 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).

  • Door closure construction for sealing the sealing edge of a coke oven door in a framed coke oven opening
    Patent number: 4293389
    Abstract: A door closure construction for sealing the sealing edge of a coke oven door in a coke oven having an opening with an outer rigid frame bounding the opening, comprises an adjustable inner frame which fits into a recess of the outer frame and may be adjustably positioned in respect thereto and in respect to the sealing edge of the coke oven door.
    Type: Grant
    Filed: May 16, 1980
    Date of Patent: October 6, 1981
    Assignee: Firma Carl Still GmbH & Co. KG
    Inventor: Heinrich-Josef Clement