Cross-pleated membrane cartridges, and method and apparatus for making cross-pleated membrane cartridges
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jul 16, 2013
Issued Date -
N/A
app pub date -
Mar 12, 2012
filing date -
Jan 14, 2008
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A membrane cartridge is manufactured by repeatedly folding and joining two strips of membrane to form a cross-pleated cartridge with a stack of openings or fluid passageways configured in an alternating cross-flow arrangement. The cartridge can be modified for other flow configurations including co-flow and counter-flow arrangements. Methods for manufacturing such cross-pleated membrane cartridges, as well as apparatus used in the manufacturing process are described. Cross-pleated membrane cartridges comprising water-permeable membranes can be used in a variety of applications, including in heat and water vapor exchangers. In particular they can be incorporated into energy recovery ventilators (ERVs) for exchanging heat and water vapor between air streams being directed into and out of buildings.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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CORE ENERGY RECOVERY SOLUTIONS INC | VANCOUVER BC V5L 2A9 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Dean, James Franklin | West Vancouver, CA | 12 | 190 |
# of filed Patents : 12 Total Citations : 190 | |||
Hill, Robert | Surrey, CA | 75 | 1440 |
# of filed Patents : 75 Total Citations : 1440 | |||
Montie, Greg | Surrey, CA | 7 | 179 |
# of filed Patents : 7 Total Citations : 179 | |||
Mullen, Curtis | Vancouver, CA | 5 | 95 |
# of filed Patents : 5 Total Citations : 95 |
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Patent Citation Ranking
- 2 Citation Count
- B01D Class
- 7.73 % this patent is cited more than
- 12 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jan 16, 2025 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
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 |
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Jan 06, 2025 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 12TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1553); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 12 |
Jan 04, 2021 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 8TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1552); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 8 |
Jan 04, 2018 | AS | ASSIGNMENT | free format text: CHANGE OF NAME;ASSIGNOR:DPOINT TECHNOLOGIES INC.;REEL/FRAME:045807/0933 Owner name: CORE ENERGY RECOVERY SOLUTIONS INC., CANADA Effective Date: Jan 04, 2018 |
Dec 16, 2016 | FPAY | FEE PAYMENT | year of fee payment: 4 |
Nov 02, 2015 | FEPP | FEE PAYMENT PROCEDURE | free format text: PAT HOLDER NO LONGER CLAIMS SMALL ENTITY STATUS, ENTITY STATUS SET TO UNDISCOUNTED (ORIGINAL EVENT CODE: STOL); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Jul 16, 2013 | I | Issuance | |
Jun 26, 2013 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Aug 02, 2012 | P | Published | |
Mar 12, 2012 | F | Filing | |
Jan 14, 2008 | PD | Priority Date |

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