Patents by Inventor John B. Halstrom

John B. Halstrom 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).

  • Peptide derivatives
    Publication number: 20010016643
    Abstract: A pharmacologically active peptide hormone derivative in which the parent peptide hormone has been modified by introducing either a lipophilic substituent, W, in the N-terminal amino acid or a lipophilic substituent, Z, in the C-terminal amino acid of the parent peptide hormone or an analogue thereof, said lipophilic substituent having from 8 to 40 carbon atoms, has a protracted profile of action.
    Type: Application
    Filed: January 30, 2001
    Publication date: August 23, 2001
    Inventors: Ib Jonassen, Svend Havelund, Per Hertz Hansen, Peter Kurtzhals, John B. Halstrom
  • N-Substituted N-carboxyanhydrides of .alpha.-amino acids and their application in the preparation of peptides
    Patent number: 4267344
    Abstract: N-Substituted N-carboxyanhydrides of .alpha.-amino acids, useful in peptide syntheses, and peptide synthesis process using such compounds, are disclosed. The N-substituent is penta(lower alkoxy)benzyl, or optionally substituted 9-xanthyl, 9-thioxanthyl or 9-selenoxanthyl.
    Type: Grant
    Filed: November 20, 1978
    Date of Patent: May 12, 1981
    Assignee: Proteinkemisk Institut. tilknyttet Akademiet for de tekniske Videnskaber
    Inventors: John B. Halstrom, Karoly G. Kovacs