SUBMERGED REVERSE OSMOSIS SYSTEM
Number of patents in Portfolio can not be more than 2000
United States of America
Stats
-
N/A
Issued Date -
Jan 2, 2020
app pub date -
Feb 9, 2018
filing date -
Feb 9, 2018
priority date (Note) -
Published
status (Latency Note)
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Importance

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Abstract
A submersible reverse osmosis desalination apparatus and method employs airlift to remove desalinated water from the apparatus via as annular flow regime over a substantial portion of the product water discharge conduit. Use of a high air fraction for airlift operation and an annular flow regime significantly lowers the weight of the product water column, as well as the backpressure on the downstream side of the osmotic membranes and at the bottom of the discharge water conduit. This permits deployment of the apparatus at reduced depths and in many eases closer to shore. In preferred embodiments the apparatus relies wholly upon hydrostatic pressure to drive seawater through the osmotic membranes, and continuously desalinates seawater and delivers pure water to the discharge water conduit without using any submerged moving parts subject to wear or breakage.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
NATURAL OCEAN WELL CO | 4900 OVERLAND AVENUE SUITE 131 CULVER CITY CA 90230 |
International Classification(s)

- 2018 Application Filing Year
- F04F Class
- 82 Applications Filed
- 54 Patents Issued To-Date
- 65.86 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Bergstrom, Robert A | Culver City, US | 18 | 28 |
# of filed Patents : 18 Total Citations : 28 | |||
Ramsay, Stephen R | Maple Ridge, CA | 2 | 42 |
# of filed Patents : 2 Total Citations : 42 |
Cited Art Landscape
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Patent Citation Ranking
- 4 Citation Count
- F04F Class
- 54.84 % this patent is cited more than
- 5 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jul 2, 2027 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jul 2, 2031 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
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 |
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