Patents by Inventor Hansan Ma

Hansan Ma 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).

  • Publication number: 20070117662
    Abstract: A soccer ball, that is, European-style football, with a plurality of air-turbulence-producing depressions distributed over a majority of the outer surface of the skin. The depressions produce a preferably circular surface shape, with a breadth of less than about one-quarter inch and preferably having a breadth to depth ratio of about 2 to about 6. The soccer ball of the present invention preferably has depressions distributed substantially uniformly over the majority of the outer surface. A method for providing the soccer ball with altered aerodynamic performance may include forming depressions by embossing the skin or molding depressions therein.
    Type: Application
    Filed: November 18, 2005
    Publication date: May 24, 2007
    Inventor: Hansan Ma
  • Publication number: 20060105866
    Abstract: A generally prolate-spheroidal, inflatable game ball with a plurality of air-turbulence-producing depressions distributed over a majority of the outer surface of the skin. The depressions produce a preferably circular surface shape, with a breadth of less than about one-quarter inch and preferably having a breadth to depth ratio of about 2 to about 6. The game ball of the present invention is preferably an American-style football, wherein the depressions are distributed substantially uniformly over the majority of the outer surface. A method for providing the game ball with altered aerodynamic performance may include forming depressions by embossing the skin or molding depressions therein.
    Type: Application
    Filed: November 17, 2004
    Publication date: May 18, 2006
    Inventor: Hansan Ma
  • Patent number: 5253866
    Abstract: The present invention is a toy sound producing ball, having a ball portion, such as a foam football, joined with a passive sound device, such as a whistle, which produces sound when air travels relative to the sound device, wherein the whistle is joined to the interior or exterior of the ball portion.
    Type: Grant
    Filed: July 18, 1991
    Date of Patent: October 19, 1993
    Assignee: Tonka Corporation
    Inventors: Randall H. Moorman, Hansan Ma
  • Patent number: 4919422
    Abstract: A ball for throwing having a generally spherical shape and balance has an axis, first and second convex surfaces defined about the axis at opposite poles, and at least one groove having a non-uniform depth defined in the surface of the ball between the first and second convex surfaces. The groove is arranged to extend through the equatorial region of the ball, between the first and second convex surfaces.
    Type: Grant
    Filed: July 6, 1989
    Date of Patent: April 24, 1990
    Assignee: Tonka Corporation
    Inventor: Hansan Ma
  • Patent number: 4573332
    Abstract: A portable security box is provided comprising a container formed from a pair of mating sections and a lock carried by one of the sections and having a flexible cable extending therefrom. The other section defines an opening for accessing the lock when both sections are in a closed position. The other section also defines a pair of openings which align with openings in the first section when the sections are in the closed position. In this manner, the cable can extend from the lock carried by the one section, through the aligned openings, and back to the lock, to secure the sections in the closed position. The container is formed from a pair of plastic sections which are hinged together at an end opposite the end at which the lock is located.
    Type: Grant
    Filed: May 10, 1984
    Date of Patent: March 4, 1986
    Assignee: Idesign, Inc.
    Inventor: Hansan Ma
  • Patent number: D271897
    Type: Grant
    Filed: March 19, 1981
    Date of Patent: December 20, 1983
    Assignee: Milton Bradley International, Inc.
    Inventor: Hansan Ma
  • Patent number: D274070
    Type: Grant
    Filed: February 12, 1982
    Date of Patent: May 29, 1984
    Assignee: Milton Bradley International, Inc.
    Inventor: Hansan Ma
  • Patent number: D322105
    Type: Grant
    Filed: July 6, 1989
    Date of Patent: December 3, 1991
    Assignee: Tonka Corporation
    Inventor: Hansan Ma