Patents by Inventor Dieter Gevert

Dieter Gevert 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).

  • Process for alkali-free dyeing and printing with reactive dyes
    Patent number: 4806126
    Abstract: Process for alkali-free dyeing and printing with reactive dyes. Beforehand, the textile material is treated with a wetting agent and a reaction product of polyethyleneimine and a bifunctional alkylating agent. This is followed by dyeing with reactive dyes in a conventional manner but without the addition of alkali to fix the dyes.
    Type: Grant
    Filed: March 23, 1988
    Date of Patent: February 21, 1989
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Klaus Sternberger, Karl-Heinz Keil, Dieter Gevert, Oscar Navarrete