Patents by Inventor Mark Steven Windisch

Mark Steven Windisch 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).

  • Clustered particle dental fillers
    Patent number: 6730156
    Abstract: A filler comprising a substantially amorphous cluster comprising non-heavy metal oxide particles and heavy metal oxide. The filler can be mixed into a hardenable resin to provide radiopaque dental materials having desirable strength and aesthetic character.
    Type: Grant
    Filed: October 28, 1999
    Date of Patent: May 4, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Mark Steven Windisch, Xiaodong Zhang, Richard Paul Rusin, Sumita Basu Mitra