Patents by Inventor Thomas Hoffman

Thomas Hoffman 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: 6461528
    Abstract: Lateral pores in a thin metal film as well as fabricating branching and expanding ore arrays can be fabricated by a method of growing long pores laterally underneath a ask by use of stress compliant masks or varying the anodization voltage. Applications range from use with scanning electron microscope (SEM-compatible single molecule probe stations), to nanowire fixtures and to the use with a “pixelating, nonscanning” near field optical microscope (NOM). Pores are defined by conventional anodization vertically into the underlying membrane of preporous material through any overlying masking layers. The general solution is to utilize mechanically stable masks that withstand the stress during anodization and counteract the pore formation stress to lead to good pore ordering and directed growth. Multilayer masks are well suited for this. With a composition of materials having different elastic properties, tensile stress can be matched to counteract compressive stress caused by porous material growth.
    Type: Grant
    Filed: October 27, 2000
    Date of Patent: October 8, 2002
    Assignee: California Institute of Technology
    Inventors: Axel Scherer, Theodore Doll, Thomas Hoffman
  • Publication number: 20010039996
    Abstract: The invention relates to a method for producing decorative panels for use in vehicle interiors. A layer 3 of plant components, such as leaves 6, is glued onto a metal or plastic carrier 1, whose shape allows it to be mounted to dashboards and/or the side panels of the interior; a transparent varnish layer 4 is then applied to the layer of plant components.
    Type: Application
    Filed: May 11, 2001
    Publication date: November 15, 2001
    Inventors: Matthias Goldschmid, Thomas Hoffman
  • Patent number: 4919972
    Abstract: A composition and process for modifying the surface region of a polymer article. The composition is a mixture of a resin surface modifier ingredient, a resin-swellable organic solvent and a surfactant additive. The composition is contacted with the surface of a resin article, while the article is immersed in a liquid which may also contain a surfactant which is non-aggressive toward the article and immiscible with the solvent. The surfactant alters the wetting characteristics of the air-liquid, or liquid-surface modifier interfaces, or both interfaces, so that a film of the modifier ingredient does not form on the surface of the liquid layer.
    Type: Grant
    Filed: July 28, 1988
    Date of Patent: April 24, 1990
    Assignee: M & T Chemicals Inc.
    Inventors: Neal Conrad, Michael T. Burchill, Joseph Silbermann, Thomas Hoffman, Maurice Bourrel