Patents by Inventor Erwin Schwarte

Erwin Schwarte 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).

  • Recovery of high purity N-acyl taurine in high yield
    Patent number: 4352759
    Abstract: This invention is directed to an improved method of recovering high purity N-acyl taurine in high yield. The recovery process involves solubilizing crude N-acyl taurine reaction product in a predetermined aqueous-alkanol solvent medium at an elevated temperature, then cooling the solution to a lower temperature whereat high purity N-acyl taurine crystallizes in high yield while salt and other impurities remain in solution, and thereafter filtering the crystalline material.
    Type: Grant
    Filed: April 29, 1981
    Date of Patent: October 5, 1982
    Inventor: Erwin Schwarte