Self-cleaning water filtration system and method
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 25, 2005
Grant Date -
Mar 4, 2004
app pub date -
Aug 27, 2002
filing date -
Aug 27, 2002
priority date (Note) -
Expired
status (Latency Note)
![]() |
A preliminary load of PAIR data current through [] has been loaded. Any more recent PAIR data will be loaded within twenty-four hours. |
PAIR data current through []
A preliminary load of cached data will be loaded soon.
Any more recent PAIR data will be loaded within twenty-four hours.
![]() |
Next PAIR Update Scheduled on [ ] |

Importance

US Family Size
|
Non-US Coverage
|
Patent Longevity
|
Forward Citations
|
Abstract
A self-cleaning water filtration system includes a pre-filter to filter oils and relatively medium sized particles in a water flow, a multi-stage filter to purify and provide a second level of filtration to the water flow, and a self-cleaning filter to provide a third level of filtration to the water flow. Water flow through the filter media of the self-cleaning filter is redirected to flush waste to a containment-tank filter. The self-cleaning filter has a purge output, which may spray the pre-filter to substantially remove particles from the pre-filter for collection in the containment tank. The multi-stage filter may have at least two layers of filter media. The pre-filter may be disposable and comprised of a mineral sanitizer positioned between two layers of an oil absorbing fabric.
First Claim
all claims..Other Claims data not available
Family
- No Family data available.
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
MAAX SPAS INDUSTRIES CORP | BROOKFIELD PLACE 181 BAY STREET STE 300 TORONTO ONTARIO M5J 2T3 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Hill, Ronald G | Chandler, AZ | 1 | 20 |
# of filed Patents : 1 Total Citations : 20 | |||
Johnson, John | Tempe, AZ | 87 | 1475 |
# of filed Patents : 87 Total Citations : 1475 | |||
Wheat, Michael | Tempe, AZ | 1 | 20 |
# of filed Patents : 1 Total Citations : 20 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 13 Citation Count
- B01D Class
- 56.39 % this patent is cited more than
- 20 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
Full Text

Legal Events
Date | Code | Event | Description |
---|---|---|---|
Oct 30, 2024 | AS | ASSIGNMENT | free format text: NOTICE OF GRANT OF SECURITY INTEREST IN PATENTS;ASSIGNOR:CACI LGS INNOVATIONS LLC;REEL/FRAME:069987/0444 Owner name: JPMORGAN CHASE BANK, N.A., NEW YORK Effective Date: Oct 30, 2024 |
Apr 03, 2024 | AS | ASSIGNMENT | free format text: CHANGE OF NAME;ASSIGNOR:LGS INNOVATIONS LLC;REEL/FRAME:069292/0952 Owner name: CACI LGS INNOVATIONS LLC, VIRGINIA Effective Date: Apr 03, 2024 |
Jul 30, 2021 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 4 |
Mar 01, 2019 | AS | ASSIGNMENT | free format text: RELEASE BY SECURED PARTY;ASSIGNOR:BANK OF AMERICA, N.A.;REEL/FRAME:049074/0094 Owner name: LGS INNOVATIONS LLC, VIRGINIA Effective Date: Mar 01, 2019 |
Jan 30, 2018 | I | Issuance | |
Jan 10, 2018 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Jul 18, 2017 | AS | ASSIGNMENT | free format text: NOTICE OF GRANT OF SECURITY INTEREST IN PATENTS;ASSIGNOR:LGS INNOVATIONS LLC;REEL/FRAME:043254/0393 Owner name: BANK OF AMERICA, N.A., NEW YORK Effective Date: Jul 18, 2017 |
Nov 03, 2016 | P | Published | |
Jul 16, 2015 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:WOOD, THOMAS H.;REEL/FRAME:036139/0692 Owner name: LGS INNOVATIONS LLC, VIRGINIA Effective Date: Jul 16, 2015 free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:WOOD, THOMAS H.;REEL/FRAME:036141/0851 Owner name: LGS INNOVATIONS LLC, VIRGINIA Effective Date: Jul 16, 2015 |
Apr 28, 2015 | F | Filing | |
Oct 21, 2010 | AS | ASSIGNMENT | free format text: NOTICE OF GRANT OF SECURITY INTEREST IN PATENTS;ASSIGNOR:LGS INNOVATIONS LLC;REEL/FRAME:049312/0843 Owner name: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT, NO Effective Date: Oct 21, 2010 free format text: NOTICE OF GRANT OF SECURITY INTEREST IN PATENTS;ASSIGNOR:LGS INNOVATIONS LLC;REEL/FRAME:049312/0843 Owner name: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT, NORTH CAROLINA Effective Date: Oct 21, 2010 |

Matter Detail

Renewals Detail
