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Patent
   D611568
Priority
Mar 17 2009
Filed
Aug 26 2009
Issued
Mar 09 2010
Expiry
Mar 09 2024
Inventors
Westrum, T…
Assg.orig
Biowater T…
Assg.curr
Biowater T…
Entity
unknown
Referenced by
13
References
3
Maint.:
n/a
The ornamental design for device for biological purification of waste water, as shown and described.

FIG. 1 is a first side view of a device for biological purification of waste water in accordance with my design;

FIG. 2 is a second side view of the device for biological purification of waste water in accordance with my design;

FIG. 3 is a third side view of the device for biological purification of waste water in accordance with my design;

FIG. 4 is a bottom plan view of the device for biological purification of waste water in accordance with my design;

FIG. 5 is a top plan view of the device for biological purification of waste water in accordance with my design; and

FIG. 6 is a fourth side view of the device for biological purification of waste water in accordance with my design; and,

FIG. 7 is a perspective view of the device for biological purification of waste water in accordance with my design.
INVENTORS:

Westrum, Thorbjørn

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
11389751, May 15 2015 Evolution Aqua Limited Mechanical filter element, apparatus and method
11426681, May 15 2015 Evolution Aqua Limited Mechanical filter element, apparatus and method
D645116, Sep 28 2010 Evoqua Water Technologies LLC Moving bed biofilm reactor media
D648821, Sep 28 2010 Evoqua Water Technologies LLC Moving bed biofilm reactor media
D661778, Feb 24 2011 Headworks Bio Inc.; HEADWORKS BIO INC Moving bed bioreactor carrier
D697168, Dec 22 2010 Biowater Technology AS Grate
D697169, Dec 22 2010 Biowater Technology AS Biofilm media
D827765, Mar 30 2015 GREENSPRINGS GROUP INC Moving bed biofilm reactor media
D830498, May 18 2016 Juraj, Csefalvay Rectangular waste water purifying device
D830499, May 18 2016 Juraj, Csefalvay Oval waste water purifying device
D872224, May 14 2018 Nexom Inc. Biogrowth support media
D946109, May 16 2019 Evolution Aqua Limited Water filter
D968559, May 16 2019 Evolution Aqua Limited Water filter
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
5779886, Oct 23 1996 Media for filtration
6889963, Feb 28 2002 Saint-Gobain Norpro Corporation Ceramic packing element
D465257, Sep 24 2001 KENT SEA TECH CORP Biofilm carrier element
ASSIGNMENT RECORDS    Assignment records on the USPTO
//
Executed onAssignorAssigneeConveyanceFrameReelDoc
Aug 13 2009WESTRUM, THORBJORNBiowater Technology ASASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0231620837 pdf
Aug 26 2009Biowater Technology AS(assignment on the face of the patent)
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