Prosecution Insights
Last updated: April 19, 2026
Application No. 16/713,679

WELL INTERVENTION MONOHULL VESSEL

Final Rejection §103
Filed
Dec 13, 2019
Examiner
LAMBE, PATRICK F
Art Unit
3676
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Helix Energy Solutions Group Inc.
OA Round
6 (Final)
62%
Grant Probability
Moderate
7-8
OA Rounds
3y 0m
To Grant
92%
With Interview

Examiner Intelligence

Grants 62% of resolved cases
62%
Career Allow Rate
364 granted / 585 resolved
+10.2% vs TC avg
Strong +29% interview lift
Without
With
+29.4%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
44 currently pending
Career history
629
Total Applications
across all art units

Statute-Specific Performance

§101
0.9%
-39.1% vs TC avg
§103
50.5%
+10.5% vs TC avg
§102
32.5%
-7.5% vs TC avg
§112
14.1%
-25.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 585 resolved cases

Office Action

§103
Notice of Pre-AIA or AIA Status The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . The amended claims filed 1/15/26 are acknowledged; claims 1-18 and 20 are currently pending. Claim Rejections - 35 USC § 103 The text of those sections of Title 35, U.S. Code not included in this action can be found in a prior Office action. Claims 1-19 is/are rejected under 35 U.S.C. 103 as being unpatentable over Roodenburg et al. (US 20050051072; Roodenburg ‘072) in view of Roodenburg et al. (US 6763898; Roodenburg ‘898). CLAIM 1: Roodenburg ‘072 discloses a well intervention monohull vessel (7). Wherein the vessel has a deck (10). The deck comprises a tower type open derrick structure (1, a MPT as discussed in Applicant’s specification) disposed on the deck (see Fig. 1). A moon pool door (303/305) is capable of being flush with the deck, wherein the moon pool door is a drill floor of the vessel (paragraph 0072). An intervention lift frame (31) disposed on the deck, the lift frame configured to be moved from a stowed position to a well center position of the deck (see Figs. 4, 5; paragraphs 0046-49; “pass… without interference” being moved from stowed to center). Roodenburg ‘072 fails to disclose a sole point land out having a sole point of a riser tension contact with a top of the derrick structure. Roodenburg ‘898 discloses a vessel. The vessel has a tower (mast 1) with sole point land outs having a sole point of a riser tension contact with a top of the derrick structure (cables on lifting means 2/4 being the land outs, sole point of contact being with the lifting means which are at the top as shown in Fig. 1). It would have been obvious to one of ordinary skill in the art at the time of filing to modify the system of Roodenburg ‘072 to have the sole point lead outs of Roodenburg ‘898 as Roodenburg ‘898 teaches the placement of such a contact/single land system minimizes the space needed on the deck (see col. 6, lines 48-55). CLAIM 2: The moon pool door adapted to transport at least one subsea equipment (see paragraph 0072). CLAIM 3: Roodenburg ‘072 fails to disclose wherein the moon pool door comprises a power slip and the step of running the at least one subsea equipment further comprises activating the power slip. Examiner takes official notice that power slips are well known in the art as a means of securing pipe. It would have been obvious to one of ordinary skill in the art at the time of filing to modify the moon pool of Roodenburg ‘072 to contain a well-known power slip as described in the claim as a combination of known prior art elements in which the power slip would function in the same predictable manner in the combination as it does in standard well intervention vessels to secure pipe without manual handling to increase safety on the drill floor. CLAIM 4: The subsea equipment comprises an intervention riser system; and an emergency disconnect package (see intervention vessel and further language is still “capable” from claim 2). CLAIM 5: The sole point land out is adapted to interact with the subsea equipment (see Roodenburg ‘898, such as drill strings). CLAIM 6: The intervention lift frame is a self-standing skidding intervention lift frame of box construction (see Fig. 5). CLAIM 7: Roodenburg ‘072 fails to disclose at least one surface coiled tubing reel disposed on the deck. Examiner takes official notice that coiled tubing reels are well known in the art as a means of securing coiled tubing for use in well intervention procedures. It would have been obvious to one of ordinary skill in the art at the time of filing to modify the vessel of the combination to contain a well-known coiled tubing reel as described in the claim as a combination of known prior art elements in which the coiled tubing reel would function in the same predictable manner in the combination as it does in standard well intervention vessels as Applicant admits it is heavy equipment associated with well intervention (Specification, paragraph 0009). CLAIM 8: Roodenburg ‘072 discloses at least one riser storage area (117). CLAIM 9: Roodenburg ‘072 discloses at least one rail (345, 347, 351, 353); and at least one pallet (5). CLAIM 10: Roodenburg ‘072 fails to disclose at least one subsea tree. Examiner takes official notice that subsea trees are well known in the art as equipment used in well intervention. It would have been obvious to one of ordinary skill in the art at the time of filing to modify the vessel of the combination to contain a well-known subsea tree as described in the claim as a combination of known prior art elements in which the subsea tree would function in the same predictable manner in the combination as it does in standard well intervention vessels as Applicant admits it is heavy equipment associated with well intervention (Specification, paragraph 0009). CLAIM 11: Roodenburg ‘072 discloses at least one crane (3) disposed on the deck; the lift frame (31) is stowed under the crane when in the stowed position (the frame is stowed at the bottom of derrick 1, which would be lower on the ship than crane 3; see Fig. 3). CLAIM 12: Roodenburg ‘072 at least one drawworks in connection with the sole point land out (to reel in and out the hoist line). CLAIMS 13-17: The methods of these claims are inherent to the above structures. CLAIM 18: The sole point land out is capable of interacting with well intervention equipment (see discussion of drill strings; further the “capable” language is functional). CLAIM 20: The lift frame is stowed at a predefined distance away from the well center position of the deck when the lift frame is in the stowed position (see Fig. 3, the stowed position is predefined as it remains on the tracks). Response to Arguments Applicant's arguments filed 1/15/26 have been fully considered but they are not persuasive. Applicant asserts that the prior art fails to disclose “an intervention lift frame disposed on the deck, the lift frame configured to be moved from a stowed position to a well center position of the deck.” Applicant attempts to import limitations from the Specification to interpret this to means that the lift frame must be disengaged from other components to be moved. This limitation is not found in the claim language. A “stowed position” is merely where the frame is placed when not in use. It is not required to be removed from the derrick to be placed in stowage. As the frame is placed in a position when not in use, it is placed in a “stowed position”. Conclusion THIS ACTION IS MADE FINAL. Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to PATRICK F LAMBE whose telephone number is (571)270-1932. The examiner can normally be reached M-Th 10-4. Examiner interviews are available via telephone, in-person, and video conferencing using a USPTO supplied web-based collaboration tool. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) at http://www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Amber Anderson can be reached at (571)270-5281. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of published or unpublished applications may be obtained from Patent Center. Unpublished application information in Patent Center is available to registered users. To file and manage patent submissions in Patent Center, visit: https://patentcenter.uspto.gov. Visit https://www.uspto.gov/patents/apply/patent-center for more information about Patent Center and https://www.uspto.gov/patents/docx for information about filing in DOCX format. For additional questions, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /PATRICK F LAMBE/Examiner, Art Unit 3676 /TARA SCHIMPF/Supervisory Patent Examiner, Art Unit 3676
Read full office action

Prosecution Timeline

Dec 13, 2019
Application Filed
Sep 29, 2020
Non-Final Rejection — §103
Jan 04, 2021
Response Filed
Apr 28, 2021
Final Rejection — §103
Nov 04, 2021
Notice of Allowance
Jan 04, 2022
Response after Non-Final Action
Jan 04, 2022
Response after Non-Final Action
Jan 18, 2022
Response after Non-Final Action
Jan 24, 2022
Response after Non-Final Action
Jan 25, 2022
Response after Non-Final Action
Feb 09, 2022
Response after Non-Final Action
May 03, 2022
Non-Final Rejection — §103
Aug 26, 2022
Response Filed
Dec 12, 2022
Final Rejection — §103
Mar 13, 2023
Notice of Allowance
May 10, 2023
Response after Non-Final Action
May 24, 2023
Response after Non-Final Action
Jul 31, 2023
Response after Non-Final Action
Oct 10, 2023
Response after Non-Final Action
Oct 11, 2023
Response after Non-Final Action
Oct 12, 2023
Response after Non-Final Action
Oct 12, 2023
Response after Non-Final Action
Apr 30, 2025
Response after Non-Final Action
Jul 02, 2025
Request for Continued Examination
Jul 07, 2025
Response after Non-Final Action
Aug 08, 2025
Non-Final Rejection — §103
Jan 15, 2026
Response Filed
Feb 20, 2026
Final Rejection — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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Patent 12503928
SELF CLEANING FRACKING PLUG AND METHOD
2y 5m to grant Granted Dec 23, 2025
Patent 12497878
ELECTRICALLY POWERED PUMPING UNIT WITH REMOVABLE PUMP MODULES
2y 5m to grant Granted Dec 16, 2025
Patent 12460506
VALVES FOR WELL SYSTEMS AND METHODS OF OPERATING SAME
2y 5m to grant Granted Nov 04, 2025
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

7-8
Expected OA Rounds
62%
Grant Probability
92%
With Interview (+29.4%)
3y 0m
Median Time to Grant
High
PTA Risk
Based on 585 resolved cases by this examiner. Grant probability derived from career allow rate.

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