Patents by Inventor Philip H. Allen

Philip H. Allen 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: 8408222
    Abstract: New baffles and methods of using these baffles are provided. The baffles comprise a body having an edge wall configured to direct the flow of a composition against a substrate (e.g., silicon wafer) edge. The edge wall comprises a vertical surface, a curved sidewall coupled to the vertical surface, and a lip coupled to the curved sidewall. A preferred baffle is annular in shape and formed from a synthetic resinous composition. Even more preferably, the baffle is not formed of a metal. The inventive methods comprise positioning the baffle adjacent a substrate during a spin coating process so that the edge wall causes the composition to cover the edges of the substrate and preferably a portion of the back side of the substrate.
    Type: Grant
    Filed: July 20, 2009
    Date of Patent: April 2, 2013
    Assignee: Brewer Science Inc.
    Inventors: Gary J. Brand, Philip H. Allen, Ramachandran K. Trichur
  • Publication number: 20100012024
    Abstract: New baffles and methods of using these baffles are provided. The baffles comprise a body having an edge wall configured to direct the flow of a composition against a substrate (e.g., silicon wafer) edge. The edge wall comprises a vertical surface, a curved sidewall coupled to the vertical surface, and a lip coupled to the curved sidewall. A preferred baffle is annular in shape and formed from a synthetic resinous composition. Even more preferably, the baffle is not formed of a metal. The inventive methods comprise positioning the baffle adjacent a substrate during a spin coating process so that the edge wall causes the composition to cover the edges of the substrate and preferably a portion of the back side of the substrate.
    Type: Application
    Filed: July 20, 2009
    Publication date: January 21, 2010
    Inventors: Gary J. Brand, Philip H. Allen, Ramachandran K. Trichur
  • Patent number: 7579044
    Abstract: New baffles and methods of using these baffles are provided. The baffles comprise a body having an edge wall configured to direct the flow of a composition against a substrate (e.g., silicon wafer) edge. The edge wall comprises a vertical surface, a curved sidewall coupled to the vertical surface, and a lip coupled to the curved sidewall. A preferred baffle is annular in shape and formed from a synthetic resinous composition. Even more preferably, the baffle is not formed of a metal. The inventive methods comprise positioning the baffle adjacent a substrate during a spin coating process so that the edge wall causes the composition to cover the edges of the substrate and preferably a portion of the back side of the substrate.
    Type: Grant
    Filed: November 7, 2005
    Date of Patent: August 25, 2009
    Assignee: Brewer Science Inc.
    Inventors: Gary J. Brand, Philip H. Allen, Ramachandran K. Trichur
  • Patent number: 5878767
    Abstract: A system for transferring fluid from a filling reservoir to a receiving tank. The system includes a fluid transfer line for conveying fluid from the filling reservoir outlet to the receiving tank inlet, and couplings for selectively connecting the fluid transfer line to a filling reservoir outlet and a receiving tank inlet. The system further includes a vapor return line for conveying vapor from a receiving tank vent to a filling reservoir inlet to simultaneously prevent pressure from building in the tank and a vacuum from developing in the reservoir as fluid is transferred from the reservoir to the tank, and couplings for selectively connecting the vapor return line to the filling reservoir inlet and the receiving tank vent.
    Type: Grant
    Filed: December 13, 1996
    Date of Patent: March 9, 1999
    Assignee: Novus International, Inc.
    Inventors: Richard E. Etling, Samuel J. Jenkins, Stephen J. Lorbert, Philip H. Allen, Anthony F. DeJohn