Patents by Inventor Nikolaus Z. Schwabe

Nikolaus Z. Schwabe 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).

  • Postage stamp indicating completion of sterilization process
    Publication number: 20030138345
    Abstract: A postage stamp providing an indication of successful completion of a sterilization process. The postage stamp is affixed to a mail article. The mail article is then collected by the postal service for processing. The mail article is subjected to sterilization by a sterilization apparatus to sterilize the mail article. Upon being successfully sterilized, the postage stamp turns color to indicate completion of the sterilization process.
    Type: Application
    Filed: January 18, 2002
    Publication date: July 24, 2003
    Inventor: Nikolaus Z. Schwabe