Prosecution Insights
Last updated: October 04, 2026
Application No. 18/449,602

INSPECTION TOOL AND SYSTEM FOR USE

Final Rejection §103
Filed
Aug 14, 2023
Priority
Aug 15, 2022 — BR 1020220161461
Examiner
PLUMB, NIGEL H
Art Unit
2855
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Serviço Nacional De Aprendizagem Industrial - Senai/Sc
OA Round
2 (Final)
91%
Grant Probability
Favorable
3-4
OA Rounds
0m
Est. Remaining
92%
With Interview

Examiner Intelligence

Grants 91% — above average
91%
Career Allowance Rate
628 granted / 692 resolved
+22.8% vs TC avg
Minimal +1% lift
Without
With
+1.0%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 1m
Avg Prosecution
41 currently pending
Career history
714
Total Applications
across all art units

Statute-Specific Performance

§101
1.2%
-38.8% vs TC avg
§103
40.1%
+0.1% vs TC avg
§102
28.6%
-11.4% vs TC avg
§112
22.4%
-17.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 692 resolved cases

Office Action

§103
DETAILED ACTION 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 . Claims Claims 1-9, 11-17, 19, 20, and 22-24 are pending. Claims 1-9, 11-14, 19, 20, and 22-24 are under consideration. Claims 15-17 are withdrawn. Claim 1 is amended. Response to Arguments Applicant’s arguments with respect to claim 1 have been considered but is moot because the new ground of rejection does not rely on any reference applied in the prior rejection of record for any teaching or matter specifically challenged in the argument. Specifically, the limitations of “a housing positioned adjacent the chamber at a first end of the mechanical structure” and “wherein the sealing assembly is configured to seal around a valve of a connector of a pipe”. These limitations are addressed below by Petroleo Brasilerio S.A. -PeTrobras WO2021108878. Applicant's arguments regarding the Bowie US10001220 have been fully considered but they are not persuasive. Applicant argues, Bowie is not an “inspection tool” as recited in claim 1 but rather just simply an “isolation plug”. Examiner respectfully disagrees and points out that the isolation plug (10) is also described as being used as a “check plug apparatus” in the event of a breach in the pipeline being detected. The plug can be actively controlled or pre-set based on operator input and pig itself to the location of the breach in a pipeline if it detects ingress. Furthermore, Bowie discloses monitoring annulus pressure as a function to determine sealing integrity and/or leak-detection and can be connected to a communication system. Check plugs routinely used in art are provided with sensors that can detect desired parameters such as water ingress and move to the location and seal off the pipeline for desired operations. (See Col 1 line 39-46, Col 5 line 5-26 and Col 8 line 24-Col 9 line 3). Therefore, the check plug of Bowie reads on the “inspection tool” limitation. As there being no arguments regarding the dependent claims rejected under respective 102 and 103 rejections, the rejections of those claims remain rejected. Furthermore, in light of the new 103 rejection below, the allowable subject matter of claim 20 is withdrawn and is now rejected. 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 should not be negated by the manner in which the invention was made. Claims 1-4, 6-9, 11, and 22-24 are rejected under 35 U.S.C. 103 as being unpatentable over Bowie US10001220 in view of Petroleo Brasilerio S.A. -PeTrobras WO202108878 (hereinafter “Petroleo”). Regarding claim 1, Bowie discloses an inspection tool (isolation tool-10) comprising: a mechanical structure (tool-10 includes three modules 14, 16 and 18 which can also be formed as a single module) comprising: a chamber (See Fig 1 and 3);a housing (body-28) positioned adjacent the chamber; a fluid communication port (pipe-12 is connected to the chamber and supplies a bi-directional fluid to flow to move the tool) in fluid communication with the chamber; at least one pressurization channel (Chamber-48 includes pressure head-30 that moves piston-50 in a respective direction based on pressure flow) in fluid communication with the chamber; and a side coupling (mandrel-20 includes side couplings see Fig 1-2 and 5-6) disposed on an outer periphery of the mechanical structure; and a sealing assembly comprising: an inner seal (seal-34) clamped in the housing of the mechanical structure; and an outer seal (seal elements-22) clamped in the side coupling of the mechanical structure (See Figs 1-2 and 5-6; See also Col 5 line 6- Col 7 line 34). However, Bowie fails to disclose the housing positioned adjacent toe chamber at a first end of the mechanical structure and the sealing assembly is configured to seal around a valve of a connector of a pipe. Petroleo discloses the housing (See Fig 2) positioned adjacent the chamber (front chamber of cylinder-12) at a first end of the mechanical structure (See Fig 2) and the sealing assembly (sealing system-10) is configured to seal around a valve (relief vakve-11) of a connector (flexible duct connector-1) of a pipe (See Fig 1-2, Paragraphs 0017 and 0022). As such, it would have been obvious to one of ordinary skill in the art before the effective filing date to include the design of Petroleo into Bowie for the purpose of increasing seal integrity. The modification would allow for decreasing potential damage seals and alignment of the device during pressure relief operations. Regarding claim 2, Bowie in view of Petroleo discloses the tool according to claim 1. Furthermore, Bowie discloses a valve (piston-50 includes a compression plate-58 and defines cylinder-54) coupled to the fluid communication port, the valve in fluid communication with the chamber (See Figs 1-2 and 5-6; See also Col 5 line 6-Col 7 line 34). Regarding claim 3, Bowie in view of Petroleo discloses the tool according to claim 1. Furthermore, Bowie discloses the chamber (See Fig 1 and 3) comprises a hemi-spherical volume and is centrally arranged on an underside of the mechanical structure (See Figs 1-2 and 5-6; See also Col 5 line 6-Col 7 line 34). Regarding claim 4, Bowie in view of Petroleo discloses the tool according to claim 1. Furthermore, Bowie discloses the mechanical structure (tool-10 includes three modules 14, 16 and 18 which can also be formed as a single module) and the sealing assembly (seals-34 and 22 make up sealing assembly) are circular in shape (See Figs 1-2 and 5-6; See also Col 5 line 6- Col 7 line 34). Regarding claim 6, Bowie in view of Petroleo discloses the tool according to claim 1. Furthermore, Bowie discloses the inner seal (seal-34) has a trapezoidal cross-sectional shape, which corresponds to a cross-sectional shape of the housing (Col 6 line 25-52 and Col 8 line 9-Col 9 line 3). Regarding claim 7, Bowie in view of Petroleo discloses the tool according to claim 1. Furthermore, Bowie discloses the outer seal (seal elements-22) has a triangular cross-sectional shape, which radially tapers in an outward direction (Col 5 line 5-Col 6 line 24, Col 8 line 9-19). Regarding claim 8, Bowie in view of Petroleo discloses the tool according to claim 7. Furthermore, Bowie discloses the outer seal (seal elements-22) further comprises in a thick upper portion clamped to the side coupling of the mechanical structure (Col 5 line 5-Col 6 line 24; Col 8 line 9-19). Regarding claim 9, Bowie in view of Petroleo discloses the tool according to claim 7. Furthermore, Bowie discloses the side coupling (mandrel-20 includes side couplings see Fig 1-2 and 5-6) comprises a lock channel and a shoulder (Col 5 line 5-Col 6 line 24). Regarding claim 11, Bowie in view of Petroleo discloses the tool according to claim 1. Furthermore, Bowie discloses the at least one pressurization channel (Chamber-48 includes pressure head-30 that moves piston-50 in a respective direction based on pressure flow) fluidly communicates with the housing (Col 6 line 25-Col 7 line 24). Regarding claim 22, Bowie in view of Petroleo discloses the tool according to claim 1. Furthermore, Bowie discloses an approximation mechanism (tug module-14 and drag module-18) attached to the housing opposite from the sealing assembly, wherein the approximation mechanism is hydraulicly driven by a Remotely Operated Vehicle (ROV; See Figs 1-2 and 5-6; See also Col 5 line 6- Col 7 line 34). Regarding claim 23, Bowie in view of Petroleo discloses the tool according to claim 22. Furthermore, Bowie discloses the approximation mechanism (tug module-14 and drag module-18) is configured to axially or radially position the sealing assembly (seals-22 and 34) relative to a relief valve of a connector of a flexible pipe (See Figs 1-2 and 5-6; See also Col 5 line 6- Col 7 line 34). Regarding claim 24, Bowie in view of Petroleo discloses the tool according to claim 23. Furthermore, Bowie discloses the approximation mechanism (tug module-14 and drag module-18) is mounted on an anchoring mechanism comprising a claw and a pulley (See Figs 1-2 and 5-6; See also Col 5 line 6- Col 7 line 34). Claim 5 is rejected under 35 U.S.C. 103 as being unpatentable over Bowie US10001220 in view of Petroleo Brasilerio S.A. -PeTrobras WO202108878 (hereinafter “Petroleo”) in further view of Bull US4302976. Regarding claim 5, the combination of Bowie in view of Petroleo discloses the tool according to claim 1. However, the combination fails to disclose the sealing assembly comprises polyether-based polyurethane. Bull discloses the sealing assembly (sealing members-15) comprises polyether-based polyurethane (Col 2 line 53-66). It would have been obvious to one of ordinary skill in the art before the effective filing date to include the design of Bull into Bowie for the purpose of increasing the life of the device. The modification would allow for higher durability and flexibility as to allow the device to last longer during operation use. Claims 12-14 and 20 are rejected under 35 U.S.C. 103 as being unpatentable over Bowie US10001220 in view of Petroleo Brasilerio S.A. -PeTrobras WO202108878 (hereinafter “Petroleo”) in further view of Penza et al US8723943 (hereinafter “Penza”). Regarding claim 12, the combination of Bowie in view of Petroleo discloses the tool according to claim 1. However, the combination fails to disclose the mechanical structure further comprises: a stem housing positioned centrally on an upper surface of the mechanical structure; and at least four mounting holes arranged circumferentially around the stem housing. Penza discloses the mechanical structure further comprises: a stem housing (conduit-30) positioned centrally on an upper surface of the mechanical structure; and at least four mounting holes (Fig 1-2 show valve system-24) arranged circumferentially around the stem housing (Col 4 line 31-67). It would have been obvious to one of ordinary skill in the art before the effective filing date to include the design of Penza into Bowie for the purpose of increasing the life of the device. The modification would allow for stronger connection to ensure the device does not get damaged during operational use. Regarding claim 13, the combination of Bowie in view of Petroleo discloses the tool according to claim 12. However, the combination fails to disclose the stem housing is recessed from the upper surface of the mechanical structure and centralized in relation to the upper surface of the mechanical structure. Penza discloses the stem housing (conduit-30) is recessed from the upper surface of the mechanical structure and centralized in relation to the upper surface of the mechanical structure (Col 4 line 31-67). It would have been obvious to one of ordinary skill in the art before the effective filing date to include the design of Penza into Bowie for the purpose of increasing the life of the device. The modification would allow for stronger connection to ensure the device does not get damaged during operational use. Regarding claim 14, the combination of Bowie in view of Petroleo discloses the tool according to claim 12. However, the combination fails to disclose the at least four mounting holes are arranged concentrically around the stem housing. Penza discloses the at least four mounting holes (screws shown in valve system-24) are arranged concentrically around the stem housing (Col 4 line 31-67). It would have been obvious to one of ordinary skill in the art before the effective filing date to include the design of Penza into Bowie for the purpose of increasing the life of the device. The modification would allow for stronger connection to ensure the device does not get damaged during operational use. Regarding claim 20, Bowie discloses the tool according to claim 12. However, Bowie fails to disclose the fluid communication port is positioned on a side of the mechanical structure between the sealing assembly and the stem housing. Petroleo discloses the fluid communication port (fluid chamber of cylinder-12 connected to valve-8) is positioned on a side of the mechanical structure between the sealing assembly (sealing system-10) and the stem housing (See housing in Fig 2). It would have been obvious to one of ordinary skill in the art before the effective filing date to include the design of Petroleo into Bowie for the purpose of increasing seal integrity. The modification would allow for decreasing potential damage seals and alignment of the device during pressure relief operations. Claim 19 is rejected under 35 U.S.C. 103 as being unpatentable over Bowie US10001220 in view of Petroleo Brasilerio S.A. -PeTrobras WO202108878 (hereinafter “Petroleo”) in further view of Keskin et al US20210387118 (hereinafter “Keskin”). Regarding claim 19, the combination of Bowie in view of Petroleo discloses the tool according to claim 1. However, the combination fails to disclose the mechanical structure comprises stainless steel. Keskin discloses the mechanical structure comprises stainless steel (Fig 6C, Paragraph 065). It would have been obvious to one of ordinary skill in the art before the effective filing date to include the design of Keskin into Bowie for the purpose of increasing the life of the device. The modification would allow for an increase in corrosion resistance and durability which would increase the life of the device. Conclusion The prior art as cited on the PTO-892 is made of record and not relied upon but considered pertinent to applicant's disclosure. Chien et al US11391390 (hereinafter “Chien“) discloses a diaphragm valve structure having application in diaphragm valves made completely from fluororesin at an operating temperature of 200° C. The diaphragm valve uses a heat isolation method that consists of a heat transfer limiting structure and a heat dissipating structure, ensuring rigidity of the gas cylinder structure. The heat transfer limiting structure uses lattice-shaped ribbed plates with horizontal openings, wherein the lattice-shaped ribbed plates and a minimum diameter area of an annular portion are all provided with heat transfer section thickness. The heat dissipating structure consists of a multilayered structure for a preferred external natural cooling and further using a coolant gas ensuring that the peripheral portion of the diaphragm and gas-tight components on the valve shaft are sufficiently cooled (Fig 1A-5, Col 5 line 38 - Col 39 line 33). Gillam US20060037659 discloses a probe (10) may be used to test or patch pipes where an operator (11) manually feeds the probe (10) along a pipe (12) by reason of an air tube (13) and CCTV cable (14). The operator may view via screen (16) the output from camera head (15) on the probe (10). The camera views the interior of a pipe in the direction of feed. The probe (10) has an elongate flexible body (16) so that it may deform to pass around corners in the pipe and be inflated to seal or apply patches (Fig 1-10, Paragraph 0015-0020). The 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). The 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 NIGEL H PLUMB whose telephone number is (571)272-8886. The examiner can normally be reached Monday-Friday 7am-5pm. 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, John Breene can be reached at 571-272-4107. 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 (USA or CANADA) or 571-272-1000. /NIGEL H PLUMB/Examiner, Art Unit 2855 /Eric S. McCall/Primary Examiner, Art Unit 2855
Read full office action

Prosecution Timeline

Aug 14, 2023
Application Filed
Dec 11, 2023
Response after Non-Final Action
Dec 12, 2023
Response after Non-Final Action
Apr 06, 2026
Non-Final Rejection mailed — §103
Jul 02, 2026
Response Filed
Sep 01, 2026
Final Rejection mailed — §103 (current)

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Prosecution Projections

3-4
Expected OA Rounds
91%
Grant Probability
92%
With Interview (+1.0%)
2y 1m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 692 resolved cases by this examiner. Grant probability derived from career allowance rate.

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