Patents by Inventor Kazimierz Antczak

Kazimierz Antczak 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).

  • Process for manufacturing opioid analgesics
    Publication number: 20050038251
    Abstract: Oxycodone is manufactured in high yields and with a high purity using a composition including a thebaine component into 14-hydroxycodeinone and then reduction of 14-hydroxycodeinone to oxycodone.
    Type: Application
    Filed: July 16, 2004
    Publication date: February 17, 2005
    Inventors: Charles Francis, Zhaiwei Lin, Christopher Kaldahl, Kazimierz Antczak, Vijai Kumar