Patents by Inventor Charles Wofford

Charles Wofford 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).

  • Biological waste water treatment system
    Patent number: 6592761
    Abstract: The present invention relates to a compact, environmentally benign onsite waste water treatment and disposal system installed secondary to conventional primary treatment process. It is a method and apparatus for the biological purification and natural disposal of liquid wastes using a secondary single pass trickling filter in conjunction with an evapotranspiration absorption (ETA) tertiary disposal bed.
    Type: Grant
    Filed: June 11, 2002
    Date of Patent: July 15, 2003
    Inventor: Charles Wofford
  • Biological waste water treatment system
    Publication number: 20020179511
    Abstract: The present invention relates to a compact, environmentally benign onsite waste water treatment and disposal system installed secondary to conventional primary treatment process. It is a method and apparatus for the biological purification and natural disposal of liquid wastes using a secondary single pass trickling filter in conjunction with an evapotranspiration absorption (ETA) tertiary disposal bed.
    Type: Application
    Filed: June 11, 2002
    Publication date: December 5, 2002
    Inventor: Charles Wofford
  • Biological waste water treatment system
    Publication number: 20020179510
    Abstract: The present invention relates to a compact, environmentally benign onsite waste water treatment and disposal system installed secondary to conventional primary treatment process. It is a method and apparatus for the biological purification and natural disposal of liquid wastes using a secondary single pass trickling filter in conjunction with an evapotranspiration absorption (ETA) tertiary disposal bed.
    Type: Application
    Filed: June 11, 2002
    Publication date: December 5, 2002
    Inventor: Charles Wofford
  • Biological waste water treatment system
    Publication number: 20020179509
    Abstract: The present invention relates to a compact, environmentally benign onsite waste water treatment and disposal system installed secondary to conventional primary treatment process. It is a method and apparatus for the biological purification and natural disposal of liquid wastes using a secondary single pass trickling filter in conjunction with an evapotranspiration absorption (ETA) tertiary disposal bed.
    Type: Application
    Filed: June 11, 2002
    Publication date: December 5, 2002
    Inventor: Charles Wofford
  • Biological waste water treatment system
    Patent number: 6428691
    Abstract: The present invention relates to a compact, environmentally benign onsite waste water treatment and disposal system installed secondary to conventional primary treatment process. It is a method and apparatus for the biological purification and natural disposal of liquid wastes using a secondary single pass trickling filter in conjunction with an evapotranspiration absorption (ETA) tertiary disposal bed.
    Type: Grant
    Filed: November 6, 2000
    Date of Patent: August 6, 2002
    Inventor: Charles Wofford