Patents by Inventor Henry Krochmal

Henry Krochmal 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).

  • Precious stone
    Patent number: D545238
    Type: Grant
    Filed: November 14, 2006
    Date of Patent: June 26, 2007
    Assignee: L. Krochmal & Sons, besloten vennootschap met beperkte aansprakelijkheid
    Inventor: Henry Krochmal
  • Precious stone
    Patent number: D547692
    Type: Grant
    Filed: August 28, 2006
    Date of Patent: July 31, 2007
    Assignee: L. Krochmal & Sons, besloten vennootschap met beperkte aansprakelijkheid
    Inventor: Henry Krochmal
  • Cut gem stone
    Patent number: D715180
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: October 14, 2014
    Assignee: Krochmal & Lieber
    Inventor: Henry Krochmal