Patents by Inventor Jeffrey S. Steinmetz

Jeffrey S. Steinmetz 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).

  • Dental packaging material and cartridge
    Patent number: 5100320
    Abstract: A cartridge made of a material that does not to a significant extend absorb polar components from a dental composition stored therein. The force required to extrude a dental composition from the cartridge increases less over time in a cartridge of the invention than in a cartridge of the same configuration made of conventionally employed materials such as nylon-6.
    Type: Grant
    Filed: January 16, 1990
    Date of Patent: March 31, 1992
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Thomas W. Martin, Jeffrey S. Steinmetz, Scott R. Culler