Boat propulsion system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Feb 13, 2007
Grant Date -
N/A
app pub date -
Sep 14, 2005
filing date -
Sep 14, 2005
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A boat propulsion system includes a plurality of positive displacement pumps which having high discharge head and having inlets and outlets therein and a controlling panel having circuits, wherein the pumps are mounted on a bottom of a boat and driven by a motive power. By means of different positions of the outlets in each pump or different power transmission of each pump and cooperating with using the controlling panel, the boat can therefore move toward desired directions and enhancing power transmission by the pumps are drawn uniform flow when the boat is moved.
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 | |
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LIUNG FENG INDUSTRIAL CO LTD | NEW TAIPEI CITY |
International Classification(s)

- 2005 Application Filing Year
- B63H Class
- 340 Applications Filed
- 133 Patents Issued To-Date
- 39.12 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Lin, Hsu Tsang | Tucheng, TW | 3 | 5 |
# of filed Patents : 3 Total Citations : 5 |
Cited Art Landscape
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Patent Citation Ranking
- 2 Citation Count
- B63H Class
- 5.38 % this patent is cited more than
- 18 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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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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Mar 25, 2019 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Mar 25, 2019 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Feb 15, 2019 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Feb 15, 2019 |
Oct 08, 2018 | FEPP | FEE PAYMENT PROCEDURE | free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Aug 07, 2014 | FPAY | FEE PAYMENT | year of fee payment: 4 |
Oct 31, 2011 | FEPP | FEE PAYMENT PROCEDURE | free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Feb 15, 2011 | I | Issuance | |
Oct 05, 2006 | P | Published | |
Jun 08, 2006 | F | Filing | |
Sep 03, 2001 | PD | Priority Date |

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