Patents Represented by Attorney Roberts Klotkowski Safran & Cole

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  • Direct and selective production of acetaldehyde from acetic acid utilizing a supported metal catalyst
    Patent number: 7994368
    Abstract: A process for the selective production of acetaldehyde by vapor phase reaction of acetic acid over a hydrogenating catalyst composition to form acetaldehyde is disclosed and claimed. In an embodiment of this invention reaction of acetic acid and hydrogen over platinum and iron supported on silica selectively produces acetaldehyde in a vapor phase at a temperature of about 300° C.
    Type: Grant
    Filed: September 16, 2010
    Date of Patent: August 9, 2011
    Assignee: Celanese International Corporation
    Inventors: Victor J. Johnston, James H. Zink, Laiyuan Chen, Barbara F. Kimmich, Josefina T. Chapman, Jan Cornelis van der Waal, Virginie Zuzaniuk
  • Method of accessing semiconductor circuits from the backside using ion-beam and gas-etch
    Patent number: 7867910
    Abstract: The invention generally relates to semiconductor device processing, and more particularly to methods of accessing semiconductor circuits from the backside using ion-beam and gas-etch to mill deep vias through full-thickness silicon. A method includes creating a pocket in a material to be etched, and performing an isotropic etch of the material by flowing a reactive gas into the pocket and directing a focused ion beam into the pocket.
    Type: Grant
    Filed: June 10, 2008
    Date of Patent: January 11, 2011
    Assignee: International Business Machines Corporation
    Inventors: Carmelo F. Scrudato, George Y. Gu, Loren L. Hahn, Steven B. Herschbein