Prosecution Insights
Last updated: May 29, 2026
Application No. 18/432,356

AUTONOMOUS SEISMIC NODE FOR THE SEABED

Final Rejection §103
Filed
Feb 05, 2024
Priority
Feb 10, 2023 — provisional 63/484,351
Examiner
ABULABAN, ABDALLAH
Art Unit
3645
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Pxgeo UK Limited
OA Round
2 (Final)
69%
Grant Probability
Favorable
3-4
OA Rounds
8m
Est. Remaining
85%
With Interview

Examiner Intelligence

Grants 69% — above average
69%
Career Allowance Rate
138 granted / 200 resolved
+17.0% vs TC avg
Strong +16% interview lift
Without
With
+15.6%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
31 currently pending
Career history
252
Total Applications
across all art units

Statute-Specific Performance

§101
3.2%
-36.8% vs TC avg
§103
84.8%
+44.8% vs TC avg
§102
3.1%
-36.9% vs TC avg
§112
8.1%
-31.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 200 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 . DETAILED ACTION The amendment filed 03/02/2026 has been entered. Claims 1,3-5 and 7-15 remain pending in the application. Response to Arguments Applicant's arguments filed 03/02/2026 have been fully considered but they are not persuasive. Regarding applicants arguments to claim 1, applicant states “Olivier therefore fails to disclose: - a detachable hydrophone housing coupled to the node housing, wherein at least one hydrophone is substantially contained within the detachable hydrophone housing; - wherein the node housing comprises an injected molded housing formed of polymeric material; and - a cross-sectional area of the seismic node is approximately a rectangle”, examiner respectfully disagrees. Olivier teaches the seismic sensor device 410 may be detachably coupled to the vessel body 450. For example, FIG. 4A illustrates a configuration where the seismic sensor module 410 is detached from the vessel body 450 (See Paragraphs 47-48, Figs.4A-4B, Claims 15, 22 of Olivier). Thus, Olivier properly teaches the first limitation in question. Furthermore, Olivier teaches the housings for the seismic sensor device can have any reasonable shape, for example, capsule, conical, cubical, rectangular, pyramid, spherical, etc. (See Paragraph 41 of Olivier) and Olivier also teaches the vessel 450 may have any desirable shape, for example, capsule, conical, cubical, rectangular, pyramid, spherical, etc. (See Paragraphs 55-57 of Olivier). Thus, Olivier properly teaches the third limitation in question. Examiner does not rely on Olivier to teach the second limitation of “wherein the node housing comprises an injected molded housing formed of polymeric material”, instead the examiner relies upon Olivier 927 to teach this limitation as detailed below. Claim Rejections - 35 USC § 103 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. The factual inquiries for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. Claim(s) 1, 3-5, 7-8 and 10-14 are rejected under 35 U.S.C. 103 as being unpatentable over Olivier (US 20160202380 A1) in view of Olivier 927 (US 20220120927 A1). Regarding claim 1, Olivier teaches an ocean bottom seismic node, comprising: a non-metallic pressurized node housing (200), wherein at least one seismic sensor (110), at least one data recording unit (130), and at least one clock (clock) are located within the node housing (200) (wherein the sensor module further comprises one or more of an energy source, a memory, a clock, and a hydrophone). (Paragraphs 39, 34, 29, Claims 6, 15) Olivier also teaches a detachable hydrophone housing (dome shaped section 260 may be configured to house a hydrophone) coupled to the node housing (200), wherein at least one hydrophone is substantially contained within the detachable hydrophone housing (The seismic sensor device 410 may be detachably coupled to the vessel body 450. For example, FIG. 4A illustrates a configuration where the seismic sensor module 410 is detached from the vessel body 450). (Paragraphs 40, 47-48, 50, Claims 15, 22, Figs.2A-2B, 4A-4B) Olivier also teaches wherein a cross-sectional area of the seismic node is approximately a rectangle. (Paragraphs 41, 55-57) Olivier does not explicitly teach wherein the node housing comprises an injected molded housing formed of polymeric material. Olivier 927 teaches wherein the node housing comprises an injected molded housing formed of polymeric material. (Paragraph 40, Fig.2) It would have been obvious to one having ordinary skill in the art before the effective filling date to have modified Olivier to incorporate wherein the node housing comprises an injected molded housing formed of polymeric material in order to have a corrosion free, shock resistant, and affordable housing and can be molded to encapsulate sensor components and related hardware housed within the sensor node. Regarding claim 3, Olivier teaches wherein the node housing is formed substantially of a polymerized material. (Paragraph 63) Regarding claim 4, Olivier teaches wherein the detachable hydrophone housing is coupled to a side face of the node housing. (Figs.2A-2B, 4A-4B) Regarding claim 5, Olivier teaches wherein the at least one hydrophone is configured to be detached from the node housing when the detachable hydrophone housing is detached from the node housing. (Paragraphs 47-48, 54, Figs.2A-2B, 4A-4B) Regarding claim 7, Olivier teaches wherein the seismic node is substantially in the shape of a cuboid. (Paragraph 55) Regarding claim 8, Olivier teaches a baseplate coupled to a bottom portion of the node housing, wherein the baseplate is approximately a rectangle. (Paragraphs 60, 75, Figs.5I-5J, 11A-11B) Regarding claim 10, Olivier teaches wherein the baseplate comprises a plurality of mounting points (573-574) configured to attach an accessory. (Paragraph 60, Figs.5I-5J) Regarding claim 11, Olivier teaches a plurality of external electrical connectors (210) partially enclosed by the detachable hydrophone housing. (Paragraphs 39-40, Figs.2A-2B) Regarding claim 12, Olivier teaches a plurality of external electrical connectors (210, 270) that are each configured to sit within a recess formed in an external face of the node pressure housing. (Paragraphs 39-40, 44, 57, Figs.2A-3) Regarding claim 13, Olivier teaches a handling bracket (573) coupled to a top portion of the seismic node. (Paragraphs 60, Figs.5I-5J) Regarding claim 14, Olivier teaches wherein the handling bracket is coupled to the node housing by a clip-on fitting (574). (Paragraph 60, Figs.5I-5J) Claim(s) 9 and 15 are rejected under 35 U.S.C. 103 as being unpatentable over Olivier in view of Olivier 927 and Rokkan (US 20180106921 A1). Regarding claim 9, Olivier does not explicitly teach a ballast weight positioned between the node housing and the baseplate. Rokkan teaches a ballast weight positioned between the node housing and the baseplate. (Paragraphs 24, 26, 37, 40) It would have been obvious to one having ordinary skill in the art before the effective filling date to have modified Olivier to incorporate a ballast weight positioned between the node housing and the baseplate in order to locate, retrieve, and/or raise various portions of the cable. Regarding claim 15, Olivier does not explicitly teach a pressure relief valve, wherein the pressure relief valve is configured to fit within an integrated socket of the node housing. Rokkan teaches a pressure relief valve (216), wherein the pressure relief valve is configured to fit within an integrated socket of the node housing (110, 202). (Paragraph 30, Figs.2A-2B) It would have been obvious to one having ordinary skill in the art before the effective filling date to have modified Olivier to incorporate a pressure relief valve, wherein the pressure relief valve is configured to fit within an integrated socket of the node housing in order to release unwanted pressure from seismic node. Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). 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 ABDALLAH ABULABAN whose telephone number is (571)272-4755. The examiner can normally be reached Monday - Friday 7:00am-3:00pm EST. 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, Isam Alsomiri can be reached at 571-272-6970. 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. /ABDALLAH ABULABAN/Primary Examiner, Art Unit 3645
Read full office action

Prosecution Timeline

Feb 05, 2024
Application Filed
Dec 04, 2025
Non-Final Rejection mailed — §103
Mar 02, 2026
Response Filed
May 11, 2026
Final Rejection mailed — §103 (current)

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
69%
Grant Probability
85%
With Interview (+15.6%)
3y 0m (~8m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 200 resolved cases by this examiner. Grant probability derived from career allowance rate.

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