|
Total properties:
13
|
|
|
|
Patent #:
|
|
Issue Dt:
|
07/12/1994
|
Application #:
|
07889176
|
Filing Dt:
|
05/27/1992
|
|
Title:
|
MULTI-LATERAL FILTER UNDERDRAIN BLOCK
|
|
|
|
|
Patent #:
|
|
Issue Dt:
|
02/06/1996
|
Application #:
|
08226811
|
Filing Dt:
|
04/12/1994
|
|
Title:
|
APPARATUS AND METHOD FOR IMPROVING GAS BACKWASH IN LATERAL UNDERDRAINS
|
|
|
|
|
Patent #:
|
|
Issue Dt:
|
06/17/1997
|
Application #:
|
08596548
|
Filing Dt:
|
02/05/1996
|
|
Title:
|
APPARATUS AND METHOD FOR IMPROVING GAS BACKWASH IN LATERAL UNDERDRAINS
|
|
|
|
|
Patent #:
|
|
Issue Dt:
|
11/06/2001
|
Application #:
|
09015390
|
Filing Dt:
|
01/29/1998
|
|
Title:
|
APPARATUS FOR DISTRIBUTING GAS AND LIQUID DURING CONCURRENT GAS/LIQUID BACKWASH IN FILTER UNDERDRAIN FLUMES
|
|
|
|
|
Patent #:
|
|
Issue Dt:
|
05/10/2005
|
Application #:
|
09506780
|
Filing Dt:
|
02/18/2000
|
|
Title:
|
BUOYANT MEDIA FLOTATION
|
|
|
|
|
Patent #:
|
|
Issue Dt:
|
10/23/2001
|
Application #:
|
09627929
|
Filing Dt:
|
07/28/2000
|
|
Title:
|
Apparatus for distributing gas and liquid during concurrent gas/liquid backwash in filter underdrain flumes
|
|
|
|
|
Patent #:
|
|
Issue Dt:
|
05/02/2006
|
Application #:
|
11087846
|
Filing Dt:
|
03/23/2005
|
|
Publication #:
|
|
Pub Dt:
|
07/28/2005
| | | | |
|
Title:
|
BUOYANT MEDIA FLOTATION
|
|
|
|
|
Patent #:
|
|
Issue Dt:
|
07/24/2012
|
Application #:
|
11914620
|
Filing Dt:
|
05/28/2008
|
|
Publication #:
|
|
Pub Dt:
|
10/09/2008
| | | | |
|
Title:
|
APPARATUS AND METHOD FOR DISTRIBUTING GAS AND LIQUID DURING BACKWASH IN FILTER UNDERDRAIN FLUMES USING DUAL SEPARATION
|
|
|
|
|
Patent #:
|
|
Issue Dt:
|
01/22/2013
|
Application #:
|
12373143
|
Filing Dt:
|
01/09/2009
|
|
Publication #:
|
|
Pub Dt:
|
10/29/2009
| | | | |
|
Title:
|
ADJUSTABLE ANCHOR ROD
|
|
|
|
|
Patent #:
|
|
Issue Dt:
|
12/04/2012
|
Application #:
|
12406694
|
Filing Dt:
|
03/18/2009
|
|
Publication #:
|
|
Pub Dt:
|
09/23/2010
| | | | |
|
Title:
|
METHOD AND SYSTEM FOR CLEANING FILTER MEDIA SUPPORT STRUCTURES
|
|
|
|
|
Patent #:
|
|
Issue Dt:
|
02/25/2014
|
Application #:
|
12894754
|
Filing Dt:
|
09/30/2010
|
|
Publication #:
|
|
Pub Dt:
|
03/31/2011
| | | | |
|
Title:
|
CLOG RESISTANT MEDIA RETAINER ASSEMBLY
|
|
|
|
|
Patent #:
|
|
Issue Dt:
|
11/18/2014
|
Application #:
|
12983465
|
Filing Dt:
|
01/03/2011
|
|
Publication #:
|
|
Pub Dt:
|
07/21/2011
| | | | |
|
Title:
|
UNDERDRAIN FILTER BLOCK INCLUDING A GROUT CHAMBER
|
|
|
|
|
Patent #:
|
|
Issue Dt:
|
06/18/2013
|
Application #:
|
29409477
|
Filing Dt:
|
12/23/2011
|
|
Title:
|
Granular Filter Media Retainer
|
|
