Patents by Inventor Alan CREFFIELD

Alan CREFFIELD 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).

  • Local sewage processing unit, sewage treatment system, method of locally processing sewage and sewage treatment process
    Patent number: 8840789
    Abstract: A local sewage processing unit is provided that receives sewage from a local source of sewage, extracts water from the received sewage that is suitable for re-use and includes a pump that is configured to pump sewage from a receiving section of the local sewage processing unit into a pressure sewer network, as required.
    Type: Grant
    Filed: February 17, 2010
    Date of Patent: September 23, 2014
    Assignee: Mono Pumps Limited
    Inventors: Alan Creffield, Andrew Moore, Stephen Watt
  • LOCAL SEWAGE PROCESSING UNIT, SEWAGE TREATMENT SYSTEM, METHOD OF LOCALLY PROCESSING SEWAGE AND SEWAGE TREATMENT PROCESS
    Publication number: 20100243561
    Abstract: A local sewage processing unit is provided that receives sewage from a local source of sewage, extracts water from the received sewage that is suitable for re-use and includes a pump that is configured to pump sewage from a receiving section of the local sewage processing unit into a pressure sewer network, as required.
    Type: Application
    Filed: February 17, 2010
    Publication date: September 30, 2010
    Inventors: Alan CREFFIELD, Andrew Moore, Stephen Watt