Patents by Inventor Robert Chang

Robert Chang 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: 5362127
    Abstract: A bicycle saddle has a seat body for the posterior of a rider, mechanical parts for fixedly attaching the seat body to a seat post by connecting the a lower wall of the seat body to the seat post, a base has a substantially triangular wall defining a central hole therewithin and a snapping tongue member. The central hole surrounds the seat post and the snapping tongue member extends upwardly and inwardly from the periphery of the wall of the base. The mechanical parts for attaching the bicycle saddle to the seat post are totally enclosed by the base and the seat body; thus, they are hidden from sight.
    Type: Grant
    Filed: August 24, 1993
    Date of Patent: November 8, 1994
    Assignee: Kalloy Industrial Co., Ltd.
    Inventor: Robert Chang
  • Patent number: 5258029
    Abstract: Stress-bearing prostheses for replacement or partial replacement of stress-bearing bone are fixed in place by bony ingrowth by providing a stress-bearing member having a porous region in combination with an osteogenic factor extract or a purified osteogenic inductive protein, optionally in combination with a TGF-beta cofactor, in a pharmaceutically acceptable carrier. The carrier is preferably either a collagen composition or a ceramic.
    Type: Grant
    Filed: May 23, 1990
    Date of Patent: November 2, 1993
    Assignee: Collagen Corporation
    Inventors: George H. Chu, Rosa Armstrong, Robert Chang
  • Patent number: 5207710
    Abstract: Stress-bearing prostheses for replacement or partial replacement of stress-bearing bone are fixed in place by bony ingrowth by providing a stress-bearing member having a porous region in combination with an osteogenic factor extract or a purified osteogenic inductive protein, optionally in combination with a TGF-beta cofactor, in a pharmaceutically acceptable carrier. The carrier is preferably either a collagen composition or a ceramic.
    Type: Grant
    Filed: January 10, 1992
    Date of Patent: May 4, 1993
    Assignee: Collagen Corporation
    Inventors: George H. Chu, Rosa Armstrong, Robert Chang
  • Patent number: 5114129
    Abstract: In order to avoid ergonomic problems such as carpel tunnel syndrome while improving productivity, an apparatus for feeding signatures to a binding line is disclosed. The apparatus includes a pocket adjacent a binding line for receiving signatures to be delivered to the binding line. It also includes first and second signature feeders for feeding signatures from a source to a signature transfer mechanism which extends to the pocket adjacent the binding line. The apparatus further contemplates at least one of the signature feeders receiving signatures directly from the source. In order to facilitate the efficient operation of the signature feeders of the invention, the signature transfer mechanism has a signature receiving end. The signature receiving end is positioned above the signature feeders and is adapted to transfer signatures to the pocket in either a shingled stream fashion or a one-at-a-time fashion. The signature transfer mechanism also has a signature transferring end positioned adjacent the pocket.
    Type: Grant
    Filed: December 14, 1990
    Date of Patent: May 19, 1992
    Assignee: R. R. Donnelley & Sons Company
    Inventors: Robert Chang, Thomas J. McNicholas, Sr.
  • Patent number: 5108436
    Abstract: Stress-bearing prostheses for replacement or partial replacement of stress-bearing bone are fixed in place by bony ingrowth by providing a stress-bearing member having a porous region in combination with an osteogenic factor extract or a purified osteogenic inductive protein, optionally in combination with a TGF-beta cofactor, in a pharmaceutically acceptable carrier. The carrier is preferably either a collagen composition or a ceramic.
    Type: Grant
    Filed: November 23, 1988
    Date of Patent: April 28, 1992
    Assignee: Collagen Corporation
    Inventors: George H. Chu, Rosa Armstrong, Robert Chang
  • Patent number: 4680149
    Abstract: An improved mold apparatus and spin casting method adapted for use in the molding of precisely configured articles, e.g., a contact lens, from a liquid polymerizable reaction mixture containing at least one volatile component is disclosed. Loss of this volatile component from the reaction mixture is prevented by providing a separate reservoir filled with a liquid volatile substance which volatilizes and fills the space above the liquid polymerization mixture.
    Type: Grant
    Filed: May 19, 1986
    Date of Patent: July 14, 1987
    Assignee: International Hydron Corporation
    Inventors: David L. Rawlings, Robert E. Glick, Robert Chang
  • Patent number: D351574
    Type: Grant
    Filed: September 3, 1993
    Date of Patent: October 18, 1994
    Assignee: Kalloy Industrial Co., Ltd.
    Inventor: Robert Chang