Patents Examined by C Henderson
  • Synthetic methods for preparation of protected proanthocyanidin(s)
    Patent number: 6420572
    Abstract: A process is disclosed for the production of polyphenol oligomers having n polyphenol monomeric units, n being an integer from 2-18. The process includes coupling of a protected polyphenol, having protected phenolic hydroxyl groups, with a C-4 functionalized polyphenol monomer. The protected polyphenol may be a protected polyphenol monomer or a protected polyphenol oligomer having 2-17 monomeric units. Advantageously, polyphenol monomeric units forming the polyphenol oligomers may be the same or different flavanoid compounds.
    Type: Grant
    Filed: October 9, 1998
    Date of Patent: July 16, 2002
    Assignee: Mars, Incorporated
    Inventors: Leo J. Romanczyk, Jr., Alan P. Kozikowski, Werner Tueckmantel, Marc E. Lippman