Patents by Inventor Carl W. Bretzloff

Carl W. Bretzloff 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).

  • Mushroom supplement
    Patent number: 4617047
    Abstract: An improved nutrient supplement is disclosed for enhancing the growth of mushroom mycelia in a compost bed comprising a combination of a protein-containing nutrient and a composition for inhibiting the growth of molds in said compost bed. Methods for making said supplement and a process for its use are also disclosed.
    Type: Grant
    Filed: March 12, 1985
    Date of Patent: October 14, 1986
    Assignee: Campbell Soup Company
    Inventor: Carl W. Bretzloff, deceased
  • Mushroom supplement containing protein and a time delay coating
    Patent number: 4534781
    Abstract: An improved nutrient supplement is disclosed for enhancing the growth of mushroom mycelium in a compost bed comprising a particulate nutrient supplement having at least a partial coating of a hydrophobic material that is not readily assimilable by competing microorganisms in the compost.
    Type: Grant
    Filed: July 27, 1982
    Date of Patent: August 13, 1985
    Assignee: Campbell Soup Company
    Inventors: Lung-chi Wu, Carl W. Bretzloff