Patents by Inventor Hermann Sulz

Hermann Sulz 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).

  • Use of cyclic esters of sulfurous acid in the dyeing of polyamide textile materials
    Patent number: 4813971
    Abstract: Textile materials made of natural or synthetic polyamides or mixtures thereof are dyed in the presence of a cyclic ester of sulfurous acid with an aliphatic 1,2-diol in place of a customary pH regulant.
    Type: Grant
    Filed: February 4, 1988
    Date of Patent: March 21, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Sigismund Heimann, Michele Vescia, Attila Bereck, Hermann Sulz, Ingrid Steenken