Patents by Inventor Ruud DE GROOT

Ruud DE GROOT 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).

  • Biodegradable and/or compostable biobased powders for additive manufacturing, and methods for the use thereof
    Patent number: 12686787
    Abstract: The present invention is directed to certain biodegradable and/or compostable biobased particulate compositions for additive manufacturing, such as those including a polyhydroxyalkanoate (PHA) powder, wherein the particulate composition and/or the PHA powder possesses (a) a free bulk density, as determined by ASTM D1895-96, of greater than 0.30 g/mL, and (b) a sinterability region of greater than 15 degrees Celsius. Also, the invention is directed to certain methods of manufacturing such biodegradable and/or compostable biobased particulate compositions useful as powdered build material for additive manufacturing processes. In addition, the present invention is directed to additive manufacturing processes utilizing the biodegradable and/or compostable biobased particulate compositions elsewhere described, along with the articles printed therefrom.
    Type: Grant
    Filed: June 8, 2022
    Date of Patent: July 21, 2026
    Assignee: Stratasys, Inc.
    Inventors: Franciscus Johannes Marie Derks, Stijn Witters, Joseph Petronella Friederichs, Ruud De Groot
  • BIODEGRADABLE AND/OR COMPOSTABLE BIOBASED POWDERS FOR ADDITIVE MANUFACTURING, AND METHODS FOR THE USE THEREOF
    Publication number: 20240294796
    Abstract: The present invention is directed to certain biodegradable and/or compostable biobased particulate compositions for additive manufacturing, such as those including a polyhydroxyalkanoate (PHA) powder, wherein the particulate composition and/or the PHA powder possesses (a) a free bulk density, as determined by ASTM D1895-96, of greater than 0.30 g/mL, and (b) a sinterability region of greater than 15 degrees Celsius. Also, the invention is directed to certain methods of manufacturing such biodegradable and/or compostable biobased particulate compositions useful as powdered build material for additive manufacturing processes. In addition, the present invention is directed to additive manufacturing processes utilizing the biodegradable and/or compostable biobased particulate compositions elsewhere described, along with the articles printed therefrom.
    Type: Application
    Filed: June 8, 2022
    Publication date: September 5, 2024
    Applicant: Stratasys, Inc.
    Inventors: Franciscus Johannes Marie DERKS, Stijn WITTERS, Joseph Petronella FRIEDERICHS, Ruud DE GROOT