Patents by Inventor Richard Curd

Richard Curd 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).

  • Soil remediant and its method of production
    Patent number: 11826801
    Abstract: There is disclosed a method of producing a soil remediant from liquid organic waste material in which the liquid organic waste material is concurrently pasteurised and digested by thermophilic aerobic digestion in the liquid phase in a single digester vessel. The organic waste material in the digester is maintained continuously at a temperature of at least 70° C. for at least an hour and the liquid organic waste material comprises at least 70% water and can be pumped. After a period of at least an hour a small amount of pasteurised organic waste material is removed and a corresponding amount of fresh organic waste material is added to the single digester vessel such that the temperature is maintained in a comfort zone of the thermophilic bacteria. In a preferred embodiment the thermophilic aerobic digestion is facilitated by micro-organisms including crenarchaeota. The liquid organic waste material can be combined with a microporous adsorbent.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: November 28, 2023
    Assignee: Agri-Tech Organic Solutions Limited
    Inventors: Bruce Michael Drew, Robert Anthony Severwright, Robert Leslie Young, Richard Curd, Roger Benfield
  • A Soil Remediant And Its Method Of Production
    Publication number: 20210061727
    Abstract: There is disclosed a method of producing a soil remediant from liquid organic waste material in which the liquid organic waste material is concurrently pasteurised and digested by thermophilic aerobic digestion in the liquid phase in a single digester vessel. The organic waste material in the digester is maintained continuously at a temperature of at least 70° C. for at least an hour and the—liquid organic waste material comprises at least 70% water and can be pumped. After a period of at least an hour a small amount of pasteurised organic waste material is removed and a corresponding amount of fresh organic waste material is added to the single digester vessel such that the temperature is maintained in a comfort zone of the thermophilic bacteria. In a preferred embodiment the thermophilic aerobic digestion is facilitated by micro-organisms including crenarchaeota. The liquid organic waste material can be combined with a microporous adsorbent.
    Type: Application
    Filed: January 12, 2018
    Publication date: March 4, 2021
    Inventors: Bruce Michael Drew, Robert Anthony Severwright, Robert Leslie Young, Richard Curd, Roger Benfield