Patents by Inventor Eric J. Thomas

Eric J. Thomas 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).

  • Integrated printed circuit connector and ground clip assembly
    Patent number: 5603620
    Abstract: A U-shaped ground clip and I/O pins are attached to a connector or header of a printed circuit board. The clip has leads which extend into the circuit board for connection to a ground plane and a spring portion which is biased against a metal case to afford a ground connection. The header securely positions the clip during soldering to assure a proper final configuration and to add stiffness to the clip to insure adequate force against the case.
    Type: Grant
    Filed: August 4, 1995
    Date of Patent: February 18, 1997
    Assignee: Delco Electronics Corp.
    Inventors: Lee R. Hinze, Eric J. Thomas
  • Preparation of penicillanic acid derivatives
    Patent number: 4347182
    Abstract: The compound 6-.beta.-chloropenicillanic acid can be prepared in substantially pure form and is a .beta.-lactamase inhibitor which may be used to enhance the effectiveness of penicillins acid cephalosporins against .beta.-lactamase producing lacteria.The process comprises the reaction of a compound of the formula: ##STR1## wherein R.sup.X is hydrogen or a carboxyl-blocking group and R is an aryl group, with a trialkyl tin hydride or a triaryl tin hydride or a dialkyl tin dihydride and optionally removing any carboxyl-blocking group R.sup.X, and/or oxidizing the atoms to an SO or SO.sub.2 ; and/or esterifying a salt of the acid to yield an in-vivo hydrolysable ester.
    Type: Grant
    Filed: March 24, 1980
    Date of Patent: August 31, 1982
    Assignee: Beecham Group Limited
    Inventors: Peter J. Giddings, David I. John, Eric J. Thomas