Patents by Inventor Timothy A. Stevens

Timothy A. Stevens 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: 5534227
    Abstract: An assembly and components therefor are disclosed for use in the field of cell and tissue culture. The assembly includes a base having one or more wells, and a cell culture insert which is mountable to the base such that the bottom wall of the insert is suspended within the well. Each well has a generally rectangular configuration such that openings are provided at each corner of the well for introducing fluid to the well. The base includes stepped portions for supporting a pair of flanges extending from diagonally opposite sides of the cell culture insert. A cover is provided for protecting the assembly and maintaining the position of the cell culture insert.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: July 9, 1996
    Assignee: Becton, Dickinson and Company
    Inventors: William Lahm, Timothy A. Stevens
  • Patent number: 5518925
    Abstract: The present invention is a culture slide assembly having a base member, a cooperable receptacle removably attached to the base and means for separating the receptacle from the base. Preferably, the assembly may be used for carrying out biological reactions or growth therein, such as growing tissue or cell cultures.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: May 21, 1996
    Inventors: Tadeusz A. Tyndorf, Timothy A. Stevens
  • Patent number: 5484731
    Abstract: A plate assembly for useful for in vitro fertilization procuedures such as receiving ova and for forming, evaluating, holding, manipulating and culturing embryos includes a base with an apportioned top surface and a sidewall. The top surface has a plurality of open wells embedded therein for receiving ova to be cultured. The wells are substantially cylindrical and have substantially flat closed bottoms to facilitate microscopic examination of the well contents. The assembly includes a removable lid for covering the top surface of the base. The lid is preferably divided into sections comparable to the top surface portions of the base. Each lid section may be separately slidably moved between a closed position where the lid covers a comparable portion of the top surface and an open position where the top surface is uncovered.
    Type: Grant
    Filed: May 26, 1993
    Date of Patent: January 16, 1996
    Assignee: Becton, Dickinson and Company
    Inventor: Timothy A. Stevens
  • Patent number: 5366893
    Abstract: Apparatus for growing cells or tissue in vitro and for supporting, positioning and/or centering cell culture inserts that are used in such procedures. The apparatus comprises a body with a plurality of wells wherein a cell culture insert may be supported and centered without interfering with the growing of tissue culture in vitro.
    Type: Grant
    Filed: January 13, 1993
    Date of Patent: November 22, 1994
    Assignee: Becton, Dickinson and Company
    Inventors: Timothy A. Stevens, Edward F. Mussi, Douglas P. Henderson, Tadeusz A. Tyndorf
  • Patent number: 5358871
    Abstract: Apparatus for growing cells or tissue in vitro and for supporting, positioning and/or centering cell culture inserts that are used in such procedures. The apparatus comprises a body with a plurality of wells wherein a cell culture insert may be supported and centered without interfering with the growing of tissue culture in vitro.
    Type: Grant
    Filed: August 12, 1993
    Date of Patent: October 25, 1994
    Assignee: Becton, Dickinson and Company
    Inventors: Timothy A. Stevens, Edward F. Mussi, Douglas P. Henderson, Tadeusz A. Tyndorf
  • Patent number: D360698
    Type: Grant
    Filed: August 12, 1993
    Date of Patent: July 25, 1995
    Assignee: Becton, Dickinson and Company
    Inventors: Timothy A. Stevens, Edward F. Mussi, Douglas P. Henderson, Tadeusz A. Tyndorf