Patents by Inventor Charles B. Zeager

Charles B. Zeager 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: 4788790
    Abstract: Method of making a dark, uniformly-colored, hardwood mulch by forming a mass of large-fibered hardwood pulp consisting essentially of 20-100% by weight large-fibered, hardwood bark pulp and 0-80% of large-fibered hardwood wood pulp, but preferably at least about 25% by weight of the wood pulp. Water is passed through the mass in an amount greater than that necessary to saturate the mass in order that the excess water may be constantly recycled through the mass of fibers. Recycling continues until the mass of wood fibers and pulp fibers achieve the desired dark, uniform color.
    Type: Grant
    Filed: June 6, 1986
    Date of Patent: December 6, 1988
    Inventor: Charles B. Zeager