Marine riser section for subsea wellbore related operations
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 12, 2020
Grant Date -
Aug 24, 2017
app pub date -
Oct 9, 2015
filing date -
Oct 10, 2014
priority date (Note) -
In Force
status (Latency Note)
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Importance

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Abstract
A drilling marine riser section comprises a main riser pipe with radially extending flanges and multiple auxiliary pipes at least comprising a choke line and a kill line. One or more clamps retain the auxiliary pipes. Further the riser section has buoyancy members. The choke line and the kill line are connected to each of the flanges in a tensile load sharing arrangement, so that—in vertical use orientation of the riser section in a riser string—weight stress is distributed in the main riser pipe and the choke line and the kill line. The buoyancy members form an exterior of the riser section including diametrically opposed and parallel flat bottom and top stacking faces relative to the axis of the main riser pipe, allowing stacking of riser sections in horizontal orientation. The choke line and the kill line are arranged diametrically opposite from one another and between the flat bottom and top stacking faces.
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 | |
---|---|---|
ITREC B V | 2 ADMIRAAL TROMPSTRAAT SCHIEDAM 3115 HH |
International Classification(s)

- 2015 Application Filing Year
- B63B Class
- 796 Applications Filed
- 647 Patents Issued To-Date
- 81.29 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Madlener, Peter | Schiedam, NL | 3 | 1 |
# of filed Patents : 3 Total Citations : 1 | |||
Roodenburg, Joop | Schiedam, NL | 245 | 1720 |
# of filed Patents : 245 Total Citations : 1720 | |||
Wijning, Diederick Bernardus | Schiedam, NL | 106 | 492 |
# of filed Patents : 106 Total Citations : 492 |
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Patent Citation Ranking
- 0 Citation Count
- B63B Class
- 0 % this patent is cited more than
- 5 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Nov 12, 2027 |
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