Guidance unit (MK-1) and arcwing circulating power guidance system with the guidance unit (MK-1)
Number of patents in Portfolio can not be more than 2000
United States of America
Stats
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Feb 25, 2025
Grant Date -
Jul 27, 2023
app pub date -
Feb 16, 2022
filing date -
Feb 16, 2022
priority date (Note) -
In Force
status (Latency Note)
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Importance

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Abstract
A guidance unit comprises a first pipe part and a second pipe part, an inner space diameter of the second pipe part is smaller than an inner space diameter of the first pipe part, causing a cross-sectional area of a second flow space perpendicular to a pipe axis of the second pipe part smaller than that of a first flow space perpendicular to a pipe axis of the first pipe part; one end of the pipe axis of the second pipe part and one end of the pipe axis of the first pipe part are connected in series with each other and spaced apart from each other by a first angle, so that the second flow space communicates with the first flow space; thereby, a pressure of an external fluid in the second flow space is greater than a pressure of the external fluid in the first flow space.
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)
- TUNGHAI UNIVERSITY
International Classification(s)

- 2022 Application Filing Year
- F16L Class
- 1383 Applications Filed
- 588 Patents Issued To-Date
- 42.52 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Chiu, Kuo-wei | Taichung, TW | 4 | 6 |
# of filed Patents : 4 Total Citations : 6 | |||
Yeh, Chia-An | Zhubei, TW | 15 | 77 |
# of filed Patents : 15 Total Citations : 77 |
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Patent Citation Ranking
- 0 Citation Count
- F16L Class
- 0 % this patent is cited more than
- < 1 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Aug 25, 2028 |
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Aug 25, 2032 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Aug 25, 2036 |
Fee | Large entity fee | small entity fee | micro entity fee |
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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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Aug 03, 2023 | P | Published | |
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