Patents by Inventor Gerlinde Ebert

Gerlinde Ebert 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).

  • Absorbent for water and aqueous solutions
    Patent number: 5571764
    Abstract: The present invention relates to absorbents for water and aqueous solutions, in particular for blood, which contain a product from the tuber of a plant from the family of the Araceae.
    Type: Grant
    Filed: January 16, 1996
    Date of Patent: November 5, 1996
    Assignee: Cassella Aktiengesellschaft
    Inventors: Rainer Greve, Gerlinde Ebert, Ulrich Riegel, Fritz Engelhardt
  • Hydrophilic, highly swellable hydrogels
    Patent number: 5331059
    Abstract: The present invention relates to a hydrophilic, highly swellable hydrogel based on (co)polymerized hydrophilic monomers or based on graft (co)polymers, characterized in that it has been surface-modified by means of a mixture ofA) one or more diglycidyl phosphonates andB) one or more other reactive compounds which are capable of reacting with the functional groups in the polymer, to a process for the preparation thereof, to the use thereof, and to diglycidyl phosphonate-containing crosslinking agent mixtures.
    Type: Grant
    Filed: November 12, 1992
    Date of Patent: July 19, 1994
    Assignee: Cassella Aktiengesellschaft
    Inventors: Friedrich Engelhardt, Rudiger Funk, Ulrich Riegel, Gerlinde Ebert, Hanss-Jerg Kleiner
  • Process for the storage and transportation of liquid hydrocarbons
    Patent number: 5276248
    Abstract: The present invention relates to the use of hydrocarbon-rich gels as a safe storage or transportation form for liquid hydrocarbons and to a process for the safe storage and safe transportion of liquid hydrocarbons, characterised in thata) the hydrocarbon is converted into a hydrocarbon-rich gel by addition of a surfactant and water andb) after storage or transportation has taken place, the hydrocarbon-rich gel is broken down again.
    Type: Grant
    Filed: September 2, 1992
    Date of Patent: January 4, 1994
    Assignee: Cassella Aktiengesellschaft
    Inventors: Fritz Engelhardt, Gerlinde Ebert, Heinz Hoffmann, Gerhard Platz, Werner Ritschel, deceased
  • Process for obtaining the hydrocarbon from a hydrocarbon-rich gel
    Patent number: 5276247
    Abstract: The present invention relates to a process for obtaining the hydrocarbon from a hydrocarbon-rich gel based on an ionic surfactant by treatment of the gel with a laminar mineral.
    Type: Grant
    Filed: September 21, 1992
    Date of Patent: January 4, 1994
    Assignee: Cassella Aktiengesellschaft
    Inventors: Fritz Engelhardt, Gerlinde Ebert, Werner Zschau
  • Hydrophilic, swellable polymers
    Patent number: 5236965
    Abstract: The present invention relates to hydrophilic, swellable polymers which consist of radicals of the general formula I ##STR1## wherein R.sup.1 to R.sup.3 are defined as stated in the description, and of radicals of a crosslinking agent which have originated from monomers having at least two olefinically unsaturated double bonds, and which are characterized in that they are in the form of a highly porous, foam-like polyhedral structure, their preparation and their use as absorption agents for water and aqueous solutions.
    Type: Grant
    Filed: January 19, 1993
    Date of Patent: August 17, 1993
    Assignee: Cassella Aktiengesellschaft
    Inventors: Friedrich Engelhardt, Gerlinde Ebert
  • Hydrophilic, swellable polymers
    Patent number: 5214075
    Abstract: The present invention relates to hydrophilic, swellable polymers which consist of radicals of the general formula I ##STR1## wherein R.sup.1 to R.sup.3 are defined as stated in the description, and of radicals of a crosslinking agent which have originated from monomers having at least two olefinically unsaturated double bonds, and which are characterized in that they are in the form of a highly porous, foam-like polyhedral structure, their preparation and their use as absorption agents for water and aqueous solutions.
    Type: Grant
    Filed: August 26, 1992
    Date of Patent: May 25, 1993
    Assignee: Cassella Aktiengesellschaft
    Inventors: Friedrich Engelhardt, Gerlinde Ebert
  • Hydrophilic, swellable polymers
    Patent number: 5182312
    Abstract: The present invention relates to hydrophilic, swellable polymers which consists of radicals of the general formula I ##STR1## wherein R.sup.1 to R.sup.3 are defined as stated in the description, and of radicals of a crosslinking agent which have originated from monomers having at least two olefinically unsaturated double bonds, and which are characterized in that they are in the form of a highly porous, foam-like polyhedral structure, their preparation and their use as absorption agents for water and aqueous solutions.
    Type: Grant
    Filed: September 24, 1990
    Date of Patent: January 26, 1993
    Assignee: Cassella Aktiengesellschaft
    Inventors: Friedrich Engelhardt, Gerlinde Ebert
  • Use of hydrocarbon-rich gels as fracturing fluids
    Patent number: 5082059
    Abstract: The present invention relates to the use of hydrocarbon-rich gels as fracturing fluids and also to fracturing fluids which are composed of a hydrocarbon-rich gel and an auxiliary.
    Type: Grant
    Filed: October 22, 1990
    Date of Patent: January 21, 1992
    Assignee: Cassella Aktiengesellschaft
    Inventors: Friedrich Engelhardt, Gerlinde Ebert