Prosecution Insights
Last updated: April 19, 2026
Application No. 18/497,279

PIPES

Non-Final OA §102§103
Filed
Oct 30, 2023
Examiner
DUNWOODY, AARON M
Art Unit
3679
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Crompton Technology Group Limited
OA Round
1 (Non-Final)
75%
Grant Probability
Favorable
1-2
OA Rounds
2y 10m
To Grant
87%
With Interview

Examiner Intelligence

Grants 75% — above average
75%
Career Allow Rate
1201 granted / 1605 resolved
+22.8% vs TC avg
Moderate +12% lift
Without
With
+11.9%
Interview Lift
resolved cases with interview
Typical timeline
2y 10m
Avg Prosecution
46 currently pending
Career history
1651
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
13.7%
-26.3% vs TC avg
§102
50.5%
+10.5% vs TC avg
§112
31.1%
-8.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1605 resolved cases

Office Action

§102 §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 . Drawings The drawings are objected to as failing to comply with 37 CFR 1.84(p)(5) because they do not include the following reference sign(s) mentioned in the description: 200. Corrected drawing sheets in compliance with 37 CFR 1.121(d) are required in reply to the Office action to avoid abandonment of the application. Any amended replacement drawing sheet should include all of the figures appearing on the immediate prior version of the sheet, even if only one figure is being amended. Each drawing sheet submitted after the filing date of an application must be labeled in the top margin as either “Replacement Sheet” or “New Sheet” pursuant to 37 CFR 1.121(d). If the changes are not accepted by the examiner, the applicant will be notified and informed of any required corrective action in the next Office action. The objection to the drawings will not be held in abeyance. Claim Rejections - 35 USC § 102 The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. Claim(s) 1-6, 9 and 15 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by US 9903256, Sakai. In regards to claim 1, in Figures 1-9 and paragraphs detailing said figures, Sakai discloses a pipe (10) extending from a first portion (34) to a second portion (36) and arranged to transfer fluid at an operational pressure from the first portion to the second portion; wherein the pipe comprises a bend portion (20) between the first and second portions in which the pipe transitions from extending in a first direction to extending in a second direction; and wherein the bend portion of the pipe comprises a non-circular cross section, the non-circular cross section having a shape selected to resist relative movement of the first and second portions when the pipe is subject to the operational pressure. In regards to claim 2, in Figures 1-9 and paragraphs detailing said figures, Sakai discloses the non-circular cross section of the pipe has a longest axis which lies in a plane defined by the first and second directions. In regards to claim 3, in Figures 1-9 and paragraphs detailing said figures, Sakai discloses the non-circular cross section of the pipe has a longest axis that lies perpendicular to a plane defined by the first and second directions. In regards to claim 4, in Figures 1-9 and paragraphs detailing said figures, Sakai discloses the non-circular cross section comprises an ellipse. In regards to claim 5, in Figures 1-9 and paragraphs detailing said figures, Sakai discloses the non-circular cross section has an aspect ratio of 1.5 or more (a and b in Fig. 2). In regards to claim 6, in Figures 1-9 and paragraphs detailing said figures, Sakai discloses the bend portion is integral with the first and second portions. In regards to claim 9, in Figures 1-9 and paragraphs detailing said figures, Sakai discloses the internal operational pressure at which the pipe is arranged to operate is 0.5 MPa or more (col. 13, lines 50-58). In regards to claim 15, in Figures 1-9 and (col. 7, line 26 through col. 11, line 29), Sakai discloses a method of manufacturing a pipe extending from a first portion to a second portion and arranged to transfer fluid at an operational pressure from the first portion to the second portion, the method comprising: forming a pipe comprising a first portion, and second portion and a bend portion between the first and second portions in which the pipe transitions from extending in a first direction to extending in a second direction; wherein the bend portion of the pipe comprises a non-circular cross section, and wherein the method comprises selecting the shape of said non-circular cross section to resist relative movement of the first and second portions when the pipe is subject to the operational pressure. Claim Rejections - 35 USC § 103 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. Claim(s) 1-8 and 10-15 is/are rejected under 35 U.S.C. 103 as being unpatentable over US 20210102646, Bernard in view of Sakai. In regards to claim 1, in Figure 8b and paragraphs detailing said figure, Bernard discloses a pipe (300’) extending from a first portion to a second portion and arranged to transfer fluid at an operational pressure from the first portion to the second portion; wherein the pipe comprises a bend portion (306) between the first and second portions in which the pipe transitions from extending in a first direction to extending in a second direction. Bernard does not disclose a bend portion comprising a non-circular cross section. Sakai relates to a pipe bend and teaches a transverse cross section of the bent pipe, the circumferential length of the bent portion is the same as each of the circumferential lengths of the non-bent portions, a thickness in the longitudinal direction is made uniform so as to be able to make strength in the longitudinal direction constant” (col. 5, line 65 through col. 6, line 4). It 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 to fabricate a pipe bend with a transverse cross section of the bent pipe, the circumferential length of the bent portion is the same as each of the circumferential lengths of the non-bent portions, so a thickness in the longitudinal direction is made uniform so as to be able to make strength in the longitudinal direction constant, as taught by Sakai. In regards to claim 2, Bernard in view of Sakai further disclose a non-circular cross section of the pipe has a longest axis which lies in a plane defined by the first and second directions. In regards to claim 3, Bernard in view of Sakai further disclose the non-circular cross section of the pipe has a longest axis that lies perpendicular to a plane defined by the first and second directions. In regards to claim 4, Benard in view of Sakai further disclose the non-circular cross section comprises an ellipse. In regards to claim 5, Bernard in view of Sakai further disclose the non-circular cross section has an aspect ratio of 1.5 or more. In regards to claim 6, Bernard in view of Sakai further disclose the bend portion is integral with the first and second portions. In regards to claim 7, Bernard in view of Sakai further disclose the pipe comprises fibre-reinforced polymer (abstract, Benard). In regards to claim 8, Bernard in view of Sakai further disclose the pipe comprises continuous fibre reinforcement that extends from the first portion into the bend portion and/or from the bend portion into the second portion. In regards to claim 10, Bernard in view of Sakai further disclose a second bend portion between the first and second portions, in which the pipe transitions from extending in the second direction to extending in a third direction, wherein the second bend portion comprises a second non-circular cross section, the second non-circular cross section having a shape selected to resist relative movement of the first and second portions when the pipe is subject to the operational pressure. In regards to claim 11, Bernard in view of Sakai further disclose a pipe system comprising: a pipe as claimed in claim 1; and at least one other structure to which the pipe is connected. In regards to claim 12, Bernard in view of Sakai further disclose the non-circular cross section of the bend portion of the pipe is selected taking into account one or more mechanical constraints imposed by a connection to the at least one other structure. In regards to claim 13, Bernard in view of Sakai further disclose the at least one other structure comprises a second pipe or a support structure. In regards to claim 14, Bernard in view of Sakai further disclose an aircraft (Bernard, [0086]) comprising: a pipe as claimed in claim 1; one or more other structures, wherein the bend portion of the pipe diverts the pipe around said one or more structures. In regards to claim 15, Bernard in view of Sakai further disclose a method of manufacturing a pipe extending from a first portion to a second portion and arranged to transfer fluid at an operational pressure from the first portion to the second portion, the method comprising: forming a pipe comprising a first portion, and second portion and a bend portion between the first and second portions in which the pipe transitions from extending in a first direction to extending in a second direction; wherein the bend portion of the pipe comprises a non-circular cross section, and wherein the method comprises selecting the shape of said non-circular cross section to resist relative movement of the first and second portions when the pipe is subject to the operational pressure. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to AARON M DUNWOODY whose telephone number is (571)272-7080. The examiner can normally be reached Monday - Friday 9:00 am - 6:00 pm. 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, Matthew Troutman can be reached at 571-270-3654. 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. /AARON M DUNWOODY/ Primary Examiner, Art Unit 3679
Read full office action

Prosecution Timeline

Oct 30, 2023
Application Filed
Jan 27, 2026
Non-Final Rejection — §102, §103 (current)

Precedent Cases

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

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Prosecution Projections

1-2
Expected OA Rounds
75%
Grant Probability
87%
With Interview (+11.9%)
2y 10m
Median Time to Grant
Low
PTA Risk
Based on 1605 resolved cases by this examiner. Grant probability derived from career allow rate.

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