Patents Assigned to LifeStraw SA
  • Water purification device
    Patent number: 9352252
    Abstract: A device (1) for purification of water driven by gravity through a purification unit between an upper dirt water container (2) and a lower clean water tank (3). A backwash system may be integrated, the system comprising a receptacle (8) for accumulation of the backwash water to prevent consumption thereof by mistake.
    Type: Grant
    Filed: October 28, 2013
    Date of Patent: May 31, 2016
    Assignee: LifeStraw SA
    Inventors: Mikkel Vestergaard Frandsen, Daniel Frauchiger, Jean-Luc Madier de Champvermeil, Jean-Marc Pascal, Luc Stoops
  • Drinking straw with hollow fibre liquid filter
    Patent number: 8852439
    Abstract: A liquid filtration method and device, for example a drinking straw with a mouthpiece, and a bundle of hollow fibres. The open ends of the fibres are embedded in a base and provided in a compartment between the base and a liquid outlet. Water or other liquid flows into the inner volume of the hollow fibres and from there through their filtering membrane walls and into the compartment before the liquid flows out through the liquid outlet, for example the mouthpiece.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: October 7, 2014
    Assignee: LifeStraw SA
    Inventors: Daniel Frauchiger, Roelie Bottema, Mikkel Vestergaard Frandsen
  • Water Purification Device
    Publication number: 20140054208
    Abstract: A device (1) for purification of water driven by gravity through a purification unit between an upper dirt water container (2) and a lower clean water tank (3). A backwash system may be integrated, the system comprising a receptacle (8) for accumulation of the backwash water to prevent consumption thereof by mistake.
    Type: Application
    Filed: October 28, 2013
    Publication date: February 27, 2014
    Applicant: LifeStraw SA
    Inventors: Mikkel Vestergaard Frandsen, Daniel Frauchiger, Jean-Luc Madier de Champvermeil, Jean-Marc Pascal, Luc Stoops
  • Water purifier
    Patent number: D782609
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: March 28, 2017
    Assignee: LifeStraw SA
    Inventors: Alison Hill, Mikkel Vestergaard Frandsen, Jean-Marc Pascal, Didier Epain, Jean-Luc Madier de Champvermeil
  • Water purifier
    Patent number: D782610
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: March 28, 2017
    Assignee: LifeStraw SA
    Inventors: Alison Hill, Mikkel Vestergaard Frandsen, Jean-Marc Pascal, Didier Epain, Jean-Luc Madier de Champvermeil
  • Water purifier
    Patent number: D783773
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: April 11, 2017
    Assignee: LifeStraw SA
    Inventors: Alison Hill, Mikkel Vestergaard Frandsen, Jean-Marc Pascal, Didier Epain, Jean-Luc Madier de Champvermeil