Patents by Inventor Dac Lekim

Dac Lekim 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).

  • Novel phospholipid derivatives of prostaglandins and process of their preparation
    Patent number: 4129650
    Abstract: A compound of the formula ##STR1## (wherein R.sub.1 and R.sub.2 are each H or a fatty-acid residue, and R.sub.3 is ##STR2## and PG is a prostaglandin radical or optical isomer thereof) is found to have a substantially increased duration of effect, compared with the corresponding prostaglandin per se, and also a strong organ specificity.
    Type: Grant
    Filed: June 28, 1977
    Date of Patent: December 12, 1978
    Assignee: A. Nattermann & Cie. GmbH
    Inventors: Hans Betzing, Dac Lekim