Patents by Inventor Wolfgang Wildenau

Wolfgang Wildenau 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: 5944026
    Abstract: Smokable products made of tobacco and/or another smokable material, which comprise natural substances having an antioxidative effect and/or naturally identical synthetic products thereof. These natural substances are selected according to the invention from hydroxycinnamic acids and their esters and depsides, plant phenols which can be derived from hydroxycinnamic acids, polymers of hydroxycinnamic alcohols, further natural substances of plant origin which have antimutagenic and aromatizing properties and are combined with vitamins, their precursors and/or derivatives having an antioxidative effect, and further vitamins having an antioxidative effect which are complexed with eukaryotic cell cultures. Processes for the preparation of products of this type are furthermore described. Compared with conventional smokable products, the products have a distinctly decreased risk potential.
    Type: Grant
    Filed: October 17, 1996
    Date of Patent: August 31, 1999
    Assignee: H.F. & Ph.F. Reemtsma GmbH & Co.
    Inventors: Reiner Kopsch, Wolfram Roeper, Wolfgang Wildenau
  • Patent number: 5617881
    Abstract: A rod-like smoking product with a strand-like filler rod of comminuted smoking tobacco and which is enclosed by a mantle of reconstituted tobacco sheets. At least one of these tobacco sheets is essentially obtained from 75 to 100% by weight of tobacco-inherent constituents including tobacco extract obtained from leaf or cut tobacco blend and tobacco rib material, and tobacco cellulose obtained from cut tobacco blend or scrap and stalk or rib material where the ratio of leaf and scrap material to stalk and rib material is in the range of 1:1.1 to 1:5.
    Type: Grant
    Filed: October 7, 1994
    Date of Patent: April 8, 1997
    Assignee: H. F. & PH. F. Reemtsma GmbH Co.
    Inventors: Peter W. Kossmehl, Edgar Mentzel, Henning Seidel, Wolfgang Wildenau, Hans Noe
  • Patent number: 5423336
    Abstract: The invention relates to a ventilated filter cigarette having a filter with three chambers, including a middle chamber containing an adsorbent. The strand-side chamber next to the middle chamber achieves a high pressure drop and a low tar retention by means of a smoke-permeable flow passage, such as a core made from smoke-permeable cellulose acetate fibers, that is enclosed by a casing made from virtually smoke-impermeable cellulose acetate fibers.
    Type: Grant
    Filed: February 24, 1993
    Date of Patent: June 13, 1995
    Assignee: H.F. & Ph.F. Reemtsma GmbH & Co.
    Inventors: Edgar Mentzel, Henning Seidel, Wolfgang Wildenau
  • Patent number: 4945932
    Abstract: There is disclosed a cigarette which extinguishes rapidly wherein the tobacco in the cigarette is surrounded by a casing of cigarette paper having areas with lesser and greater air permeability in the form of patterned annular zones.
    Type: Grant
    Filed: January 25, 1989
    Date of Patent: August 7, 1990
    Assignee: H. F. & ph. F. Reemtsma GmbH & Co.
    Inventors: Edgar Mentzel, Wolfgang Wildenau
  • Patent number: 4593707
    Abstract: A variably ventilatable filter cigarette is provided with a filter body having a plurality of spaced circumferential, peripheral channels covered by a wrapping sheet at least a portion of which is air permeable, the wrapping sheet extending beyond the filter body to receive a cup-shaped member having an end wall with perforations alignable with the channels; the cup-shaped member is rotatable to vary the degree of registration with respect to the channels.
    Type: Grant
    Filed: June 14, 1985
    Date of Patent: June 10, 1986
    Assignee: H.F. & Ph.F. Reemtsma GmbH & Co.
    Inventors: Henning Seidel, Wolfgang Wildenau, Joachim Mantke