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Patents

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PATENTS

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Patented Technology

HUBB has been issued 7 patents and has filed multiple continuations to expand its claims:

  • U.S. Design Patent No. D600,776 (Issued: 9/22/2009)
  • U.S. Patent No. 8,187,458 (Issued: 5/29/2012)
  • U.S. Patent No. 8,709,240 (Issued: 4/29/2014)
  • U.S. Patent No. 8,709,240 (Issued: 4/29/2014)
  • U.S. Patent No. 8,709,240 (Issued: 4/29/2014)
  • U.S. Patent No. 8,709,240 (Issued: 4/29/2014)
  • U.S. Patent No. 8,709,240 (Issued: 4/29/2014)

The patents cover technologies that enable very high levels of efficiency in filtering oil and other liquids and gases.

Highlights of the patents include:

  • The design of the filter mount and how it attaches to the engine block
  • The design and flow geometry associated with how the fluid enters the filter
  • The ability of the filter cap to act as a break and redirect the fluid
  • The geometry of how the fluid flows into the primary and secondary media
  • The way the primary and secondary media work in parallel to create a pressure differential to filter the fluid
  • The ability to respond to different pressures with 2 pre-set valves
  • The ability to clean the media
  • A method for exchange of a filter assembly is described, wherein a contaminated filter assembly is exchanged for a refurbished filter assembly or a new filter assembly
  • Method of filtering a liquid with a filter assembly having a primary and a secondary filter
  • An oil filter assembly is disclosed for a machine