Patents by Inventor Stefan Roeber

Stefan Roeber 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).

  • Publication number: 20040053140
    Abstract: A packaging tape (3) which comprises a polymer film is used as a holographic data carrier. The packaging tape (3) is set up for the storage of holographic information. Holographic information can be put into the packaging tape (3) with the aid of a writing device (4), before an object (1) is packaged by using the packaging tape (3), but also afterwards.
    Type: Application
    Filed: September 24, 2003
    Publication date: March 18, 2004
    Inventors: Stefan Stadler, Stefan Roeber, Steffen Noehte, Jorn Leiber, Christoph Dietrich, Matthias Gerspach
  • Patent number: 6428866
    Abstract: A multilayer plastic composition having (I) an outer layer of a thermoplastic molding composition and (II) an inner layer of an electrically conductive thermoplastic molding composition containing graphite fibrils, which are useful for the transport of (petro) chemical materials and also in the motor vehicle sector for conveying brake, cooling and hydraulic fluid and also fuel.
    Type: Grant
    Filed: November 12, 1999
    Date of Patent: August 6, 2002
    Assignee: Degussa-Huels Aktiengesellschaft
    Inventors: Hans Jadamus, Hans Ries, Stefan Roeber
  • Patent number: 6386240
    Abstract: A plastic pipe based on polyolefins is provided, which pipe, compared with single-layer pipes of polyolefins, has improved barrier action against (petro)chemical materials, in particular against methanol-containing fuels. This is achieved by a multilayer plastic pipe which comprises the following layers: I. at least one layer based on a polyolefin, II. at least one layer based on a thermoplastic polyester, bonded via III. a layer between them of a suitable coupling agent which contains reactive groups, with adjacent layers being cohesively bonded to one another. The invention makes it possible to obtain plastic pipes having the desired improved property profile.
    Type: Grant
    Filed: March 30, 1995
    Date of Patent: May 14, 2002
    Assignee: Degussa-Huels Aktiengesellschaft
    Inventors: Stefan Roeber, Hans-Dieter Herrmann
  • Patent number: 6090459
    Abstract: A multilayer plastic composition having (I) an outer layer of a thermoplastic molding composition and (II) an inner layer of an electrically conductive thermoplastic molding composition containing graphite fibrils, which are useful for the transport of (petro)chemical materials and also in the motor vehicle sector for conveying brake, cooling and hydraulic fluid and also fuel.
    Type: Grant
    Filed: July 7, 1997
    Date of Patent: July 18, 2000
    Assignee: Huels Aktiengesellschaft
    Inventors: Hans Jadamus, Hans Ries, Stefan Roeber
  • Patent number: 5858492
    Abstract: A composite material having improved thermal and mechanical properties is provided by a thermoplastic multilayer composite consisting at least of(I) a layer of a polyvinylidene fluoride moulding composition,(II) a layer directly adjacent to the layer I, comprising a moulding composition based on a mixture of(a) from 40 to 90% by weight of a polyamide, and(b) from 10 to 60% by weight of a polyglutarimide,(III) a layer directly adjacent to the layer II comprising a suitable coupling agent, and(IV) a layer directly adjacent to the layer III, comprising a polyolefin moulding composition, with adjacent layers being firmly bonded to one another. By means of the invention it is possible to obtain composite materials having the desired improved property profile.
    Type: Grant
    Filed: February 29, 1996
    Date of Patent: January 12, 1999
    Assignee: Huels Aktiengesellschaft
    Inventors: Stefan Roeber, Hans Ries