Patents by Inventor Udo Ehrenfeld

Udo Ehrenfeld 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).

  • Jomol derivatives as agents for the use in malignant tumors and lowered immune defenses
    Patent number: 5116614
    Abstract: The invention relates to Jomol, processes for its production of Nocardia opaca cells (DSM 43202 or ATCC 21953, respectively), its derivatives, diagnostic compositions, and pharmaceutical preparations containing Jomol or its derivatives, as well as to products containing Jomol and/or one of its derivatives and an adjuvant.
    Type: Grant
    Filed: January 22, 1990
    Date of Patent: May 26, 1992
    Inventor: Udo Ehrenfeld
  • Radioactive Jomol, its derivatives, processes for the production of these compounds, their use and product
    Patent number: 5053216
    Abstract: The invention relates to radioactively tagged Jomol, and its derivatives, diagnostic compositions, and pharmaceutical preparations containing such Jomol or its derivatives, as well as to products containing such Jomol and/or one of its derivatives and an adjuvant.
    Type: Grant
    Filed: March 21, 1986
    Date of Patent: October 1, 1991
    Inventor: Udo Ehrenfeld
  • Agent and product for the diagnosis and treatment of tumors and for the treatment of weaknesses of the cellular and humoral immune defense
    Patent number: 5021234
    Abstract: An agent for the diagnosis and treatment of malignant tumors and for the treatment of lowered cellular and humoral immune defense is described which contains an immune modulator, a lipopolysaccharide or an immune modulator tagged with a radioactive tracer, a dyestuff or a cytostatic, or a similar polysaccharide, possibly in and/or on liposomes or lipidized. There is also described a product which contains the agent together with an adjuvant consisting of an aldehyde and an alcohol. There is also described a method for the diagnosis of malignant tumors comprising the step of administering to a mammal a diagnostic effective amount of the agent, optionally together with an adjuvant consisting of an aldehyde and an alcohol.
    Type: Grant
    Filed: February 26, 1990
    Date of Patent: June 4, 1991
    Inventor: Udo Ehrenfeld
  • Agent facilitating liposome cellular wall transport, a method for the production thereof and its use
    Patent number: 4590060
    Abstract: An agent is described in which contains an aldehyde of formula IRCHO (I)in which R is a hydrogen atom, a straight-chain or branched hydrocarbon group having 1 to 4 carbon atoms, and preferably an alcohol of formula IIR'CH.sub.2 OH (II)in which R' has the meaning indicated above. The agent is used together with charged liposomes. By the administration of the agent, the permeability of the liposomes through tissue cell walls is substantially improved and tagged liposomes accumulate around and in a malignant tumor. A kit for use in diagnosis and therapy is also described.
    Type: Grant
    Filed: December 2, 1983
    Date of Patent: May 20, 1986
    Inventor: Udo Ehrenfeld