Patents by Inventor William J. Blatherwick

William J. Blatherwick 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).

  • Patent number: 4708650
    Abstract: An applicator for accurately dispensing small amounts of fluids to tooth surfaces, including a handle, a nozzle which includes a reservoir for fluid and a piston member, and a lever, spring, plunger member, whereby activation of the lever forces the plunger against the piston which, in turn, forces fluid out of the reservoir through the nozzle.
    Type: Grant
    Filed: February 10, 1986
    Date of Patent: November 24, 1987
    Assignee: Johnson & Johnson Dental Products Company
    Inventors: Robert D. Holewinski, William J. Blatherwick, Leslie Hamilton, Thomas E. Wells, Sr.
  • Patent number: 4693684
    Abstract: A ratchet-type dispenser for dental materials is disclosed. The ratchet is activated by a drive pawl and is prevented from returning by a detent pawl. The drive pawl and detent pawl are activated by the same lever arm.
    Type: Grant
    Filed: May 30, 1986
    Date of Patent: September 15, 1987
    Assignee: Johnson & Johnson Dental Products Company
    Inventors: William J. Blatherwick, Leslie Hamilton, Robert D. Holewinski, Virginia A. Shen, Jeffrey Kapec, Kazuna Tanaka
  • Patent number: D281719
    Type: Grant
    Filed: January 26, 1983
    Date of Patent: December 10, 1985
    Assignee: Johnson & Johnson Dental Products Company
    Inventors: Robert D. Holewinski, Leslie Hamilton, William J. Blatherwick
  • Patent number: D281813
    Type: Grant
    Filed: January 26, 1983
    Date of Patent: December 17, 1985
    Assignee: Johnson & Johnson Dental Products Company
    Inventors: Robert D. Holewinski, Leslie Hamilton, William J. Blatherwick
  • Patent number: D282279
    Type: Grant
    Filed: January 26, 1983
    Date of Patent: January 21, 1986
    Assignee: Johnson & Johnson Dental Products Co.
    Inventors: Robert D. Holewinski, Leslie Hamilton, William J. Blatherwick
  • Patent number: D282280
    Type: Grant
    Filed: January 26, 1983
    Date of Patent: January 21, 1986
    Assignee: Johnson & Johnson Dental Products Company
    Inventors: Robert D. Holewinski, Leslie Hamilton, William J. Blatherwick
  • Patent number: D286750
    Type: Grant
    Filed: April 9, 1984
    Date of Patent: November 18, 1986
    Assignee: Johnson & Johnson Dental Products Company
    Inventors: Leslie Hamilton, Robert D. Holewinski, William J. Blatherwick
  • Patent number: D287821
    Type: Grant
    Filed: April 9, 1984
    Date of Patent: January 20, 1987
    Assignee: Johnson & Johnson Dental Products Company
    Inventors: Robert D. Holewinski, Leslie Hamilton, William J. Blatherwick
  • Patent number: D287874
    Type: Grant
    Filed: December 3, 1984
    Date of Patent: January 20, 1987
    Assignee: Johnson & Johnson Dental Products Company
    Inventors: William J. Blatherwick, Leslie Hamilton, Robert D. Holewinski
  • Patent number: D287875
    Type: Grant
    Filed: December 3, 1984
    Date of Patent: January 20, 1987
    Assignee: Johnson & Johnson Dental Company
    Inventors: William J. Blatherwick, Leslie Hamilton, Robert D. Holewinski
  • Patent number: D287876
    Type: Grant
    Filed: December 3, 1984
    Date of Patent: January 20, 1987
    Assignee: Johnson & Johnson Dental Company
    Inventors: William J. Blatherwick, Leslie Hamilton, Robert D. Holewinski
  • Patent number: D287877
    Type: Grant
    Filed: July 20, 1984
    Date of Patent: January 20, 1987
    Assignee: Johnson & Johnson Dental Products Company
    Inventors: Robert D. Holewinski, Edward A. Weissenburger, William J. Blatherwick
  • Patent number: D288233
    Type: Grant
    Filed: April 9, 1984
    Date of Patent: February 10, 1987
    Assignee: Johnson & Johnson Dental Products Company
    Inventors: William J. Blatherwick, Leslie Hamilton, Robert D. Holewinski
  • Patent number: D288234
    Type: Grant
    Filed: October 29, 1984
    Date of Patent: February 10, 1987
    Assignee: Johnson & Johnson Dental Products Company
    Inventors: William J. Blatherwick, Leslie Hamilton, Robert D. Holewinski
  • Patent number: D288481
    Type: Grant
    Filed: April 9, 1984
    Date of Patent: February 24, 1987
    Assignee: Johnson & Johnson Dental Products Company
    Inventors: Robert D. Holewinski, Leslie Hamilton, William J. Blatherwick
  • Patent number: D288482
    Type: Grant
    Filed: November 5, 1984
    Date of Patent: February 24, 1987
    Assignee: Johnson & Johnson Dental Products
    Inventors: William J. Blatherwick, Leslie Hamilton, Robert D. Holewinski
  • Patent number: D288606
    Type: Grant
    Filed: April 9, 1984
    Date of Patent: March 3, 1987
    Assignee: Johnson & Johnson Dental Products Company
    Inventors: William J. Blatherwick, Leslie Hamilton, Robert D. Holewinski
  • Patent number: D289974
    Type: Grant
    Filed: April 9, 1984
    Date of Patent: May 26, 1987
    Assignee: Johnson & Johnson Dental Products Co.
    Inventors: Leslie Hamilton, Robert D. Holewinski, William J. Blatherwick
  • Patent number: D297457
    Type: Grant
    Filed: February 10, 1986
    Date of Patent: August 30, 1988
    Assignee: Johnson & Johnson Consumer Products, Inc.
    Inventors: Robert D. Holewinski, Leslie Hamilton, William J. Blatherwick, Thomas E. Wells, Sr.
  • Patent number: D297566
    Type: Grant
    Filed: May 30, 1986
    Date of Patent: September 6, 1988
    Assignee: Johnson & Johnson Consumer Products, Inc.
    Inventors: William J. Blatherwick, Leslie Hamilton, Robert D. Holewinski, Virginia A. Shen, Jeffrey Kapec, Kazuna Tanaka