Patents by Inventor Rolf Franke

Rolf Franke 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).

  • Heat fixing paper or sheet
    Patent number: 5968634
    Abstract: A paper or transparency receiving toner to be fixed by heat has an ionomeric resin on its outer surface. For universal application, the outer layer is a blend of non-ionomeric resin, such as styrene acrylate copolymer, and an ionomer, which permits the material of the toner to molecularly intermingle with the blend during heat fixing. Irradiation raises the melting point of the ionomeric resin to prevent delamination. The resulting printing is strongly bonded to the substrate and is of excellent quality.
    Type: Grant
    Filed: June 10, 1997
    Date of Patent: October 19, 1999
    Assignee: Lexmark International, Inc.
    Inventors: Jan Rose Heeg, Rolfe Frank Kruckas, Ashok Murthy, Stephen Todd Olson, Jeanne Marie Saldanha-Singh, Rita Sharma, Ajay Kanubhai Suthar, Richard Barber Watkins, Joe Williams Woods
  • Heat fixing paper or sheet
    Patent number: 5741572
    Abstract: A paper or transparency receiving toner to be fixed by heat has an ionomeric resin on its outer surface. For universal application, the outer layer is a blend of non-ionomeric resin, such as styrene acrylate copolymer, and an ionomer, which permits the material of the toner to molecularly intermingle with the blend during heat fixing. Irradiation raises the melting point of the ionomeric resin to prevent delamination. The resulting printing is strongly bonded to the substrate and is of excellent quality.
    Type: Grant
    Filed: February 17, 1995
    Date of Patent: April 21, 1998
    Assignee: Lexmark International, Inc.
    Inventors: Jan Rose Heeg, Rolfe Frank Kruckas, Ashok Murthy, Stephen Todd Olson, Jeanne Marie Saldanha-Singh, Rita Sharma, Ajay Kanubhai Suthar, Richard Barber Watkins, Joe William Woods
  • Local anesthetic
    Patent number: 5676955
    Abstract: This invention relates to a mixture of homologous narrow range lauryl polyglycol ethers, to its use as a local anaesthetic agent.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: October 14, 1997
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Achim Ansmann, Ansgar Behler, Rolf Franke, Peter Schmersahl
  • Medicinal bath oils
    Patent number: 4921874
    Abstract: There is described a medicinal bath oil containing about 68-95 percent by weight of one or more physiologically acceptable oil and about 30-5 percent by weight of one or more physiologically acceptable emulsifiers, at least one of which is a fatty alcohol polygolyol ether.
    Type: Grant
    Filed: August 17, 1987
    Date of Patent: May 1, 1990
    Assignee: Merck Patent Gesellschaft mit Beschrankter Haftung
    Inventors: Rolf Franke, Peter Schmersahl
  • Apparatus for separating flowable constituents from a substance mixture
    Patent number: 4826595
    Abstract: The invention relates to an apparatus for separating the flowable constituents from a mixture of flowable and non-flowable constituents particularly for the preparation of foodstuffs, the apparatus includes a driven perforated drum having a perforated circumferential surface, a pressure belt enclosing part of the circumference thereof and pressable onto the same by at least one pressure roller, as well as a supply mechanism for supplying the product to be treated into an entry wedge formed between the perforated drum and the pressure belt.
    Type: Grant
    Filed: September 24, 1987
    Date of Patent: May 2, 1989
    Assignee: Nordischer Maschinenbau Rud. Baader GmbH & Co. KG
    Inventor: Rolf Franke