Patents by Inventor Tilford F. Riehl, Jr.

Tilford F. Riehl, Jr. 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: 5101840
    Abstract: A dye coating for a cigarette wrapper paper and a cigarette utilizing said wrapper wherein the dye comprises a solvent system, cocoa powder as the pigment, a dispersant to disperse the pigment, and a binder to bond the pigment to the paper when the dye is dry.
    Type: Grant
    Filed: August 13, 1990
    Date of Patent: April 7, 1992
    Assignee: Brown & Williamson Tobacco Corporation
    Inventor: Tilford F. Riehl, Jr.
  • Patent number: 4550740
    Abstract: A mouthpiece adapted to be attached to a smoking article, such as a cigarette, includes, in one advantageous embodiment, an air impermeable core member of smaller diameter than the tobacco column to which it is to be coaxially located and a generally cylindrically shaped hollow sleeve having generally the same diameter as the tobacco column concentrically located over the impermeable core member and cooperating therewith to define a generally annular channel open at both of its ends. The mouthpiece is connected to the tobacco column by circumscribing air permeable tipping material therearound. In one embodiment, the mouthpiece includes a filter plug coaxially located at one end of the tobacco column with the filter plug being of generally the same diameter as the tobacco column. The filter plug has generally longitudinally extending grooves formed in the peripheral surface extending from one end to the other end of the filter plug.
    Type: Grant
    Filed: December 5, 1983
    Date of Patent: November 5, 1985
    Assignee: Brown & Williamson Tobacco Corporation
    Inventor: Tilford F. Riehl, Jr.