Patents by Inventor Wilfried G. Lemm

Wilfried G. Lemm 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).

  • Synthetic material apt to stably adsorb high quantities of heparin, and process for the production thereof
    Patent number: 4944767
    Abstract: Synthetic material apt to stably adsorb high quantities of heparin, consisting of a polyurethane resin, cross-linked with copolymeric chains in correspondence of at least part of its own urethane groups ##STR1## as per the following general formula: ##STR2## wherein, PU--- is a polyurethanic polymeric chain,R.sup.1 is an alkyl or aralkyl, containing functional groups inert to isocyanates,R.sup.2 is an alkylene,R.sup.3 is an alkylene, arylene or other bivalent organic radical, andR.sup.n is a polyamidoaminic radical;and process for the production of said material.
    Type: Grant
    Filed: January 15, 1987
    Date of Patent: July 31, 1990
    Assignee: G. Creamascoli S.p.A.
    Inventors: Rolando Barbucci, Paolo Ferruti, Adalberto Grossi, Wilfried G. Lemm