Prosecution Insights
Last updated: October 27, 2026
Application No. 19/106,842

Distribution of SRv6 modes of operation via routing protocols

Non-Final OA §101
Filed
Feb 26, 2025
Priority
Nov 29, 2022 — continuation of 12/081,435 +2 more
Examiner
SWEARINGEN, JEFFREY R
Art Unit
2445
Tech Center
2400 — Computer Networks
Assignee
Ciena Corporation
OA Round
1 (Non-Final)
76%
Grant Probability
Favorable
1-2
OA Rounds
1y 9m
Est. Remaining
98%
With Interview

Examiner Intelligence

Grants 76% — above average
76%
Career Allowance Rate
536 granted / 702 resolved
+18.4% vs TC avg
Strong +21% interview lift
Without
With
+21.3%
Interview Lift
resolved cases with interview
Typical timeline
3y 5m
Avg Prosecution
15 currently pending
Career history
723
Total Applications
across all art units

Statute-Specific Performance

§101
13.5%
-26.5% vs TC avg
§103
46.6%
+6.6% vs TC avg
§102
17.1%
-22.9% vs TC avg
§112
15.2%
-24.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 702 resolved cases

Office Action

§101
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 . Claim Rejections - 35 USC § 101 35 U.S.C. 101 reads as follows: Whoever invents or discovers any new and useful process, machine, manufacture, or composition of matter, or any new and useful improvement thereof, may obtain a patent therefor, subject to the conditions and requirements of this title. Claims 16-35 are rejected under 35 U.S.C. 101 because the claimed invention is directed to an abstract idea without significantly more. Step 1 – the claims recite at least one step or act, and therefore the claim is to a process, which is one of the statutory categories of invention. Step 2A, Prong One – A claim recites a judicial exception when the judicial exception is set forth or described in the claim. The broadest reasonable interpretation of the claims is that the claimed steps fall within in the mental process groupings of abstract ideas because they cover concepts performed in the human mind, including observation, evaluation, judgment, and opinion. See MPEP 2106.04(a)(2), subsection III. The claims can be practically performed in the human mind, with or without the use of a physical aid such as pen and paper, and therefore falls within the mental processes grouping. Claims can recite a mental process even if they are claimed as being performed on a computer. See MPEP 2106.04(a)(2), subsection III(B) and (C). The limitations of transmitting, by a first node, first routing updates via a routing protocol to at least a second node, wherein the first routing updates include an indication of one or more SRv6 operational modes supported by the first node, the one or more SRv6 operational modes are one of a Reduced mode or a Non-Reduced mode; receiving, by the first node, second routing updates from the second node, wherein the second routing updates include an indication of one or more SRv6 operational modes supported by the second node; and determining, by the first node, a negotiated SRv6 operational mode to use with the second node, based on the indication of the SRv6 operational modes supported by the second node are under their broadest reasonable interpretations mental steps that can be performed with a physical aid such as pen and paper. The recitation of a node in a segment routing version 6 network to perform the steps in claims 16-35 amounts to no more than mere instructions to apply the exception using a generic computer component. Step 2A, Prong Two – This part of the eligibility analysis evaluates whether the claim as a whole integrates the recited judicial exception into a practical application of the exception or whether the claim is directed to the judicial exception. This evaluation is performed by (1) identifying whether there are any additional elements recited in the claim beyond the judicial exception, and (2) evaluating those additional elements individually and in combination to determine whether the claim as a whole integrates the exception into a practical application. See MPEP 2106.04(d). Claims 16-35 perform the claim limitations using a “node in a segment routing version 6 network”, merely indicating a field of use or technological environment in which the judicial exception is performed. Although the additional element “node” limits the identified judicial exceptions, this type of limitation merely confines the use of the abstract idea to a particular technological environment and thus fails to add an inventive concept to the claims. See MPEP 2106.05(h), Ex Parte Desjardins, Appeal No. 2024-000567 (PTAB September 26, 2025, Appeals Review Panel Decision) (precedential). In this case, the node does not confer a technological improvement to a technical problem, especially as to improvements to computer components or the computer system. As discussed in Step 2A, Prong Two above, the recitations of the claim limitations are recited at a high level of generality. These elements amount to receiving or transmitting and analyzing data over a network, and are well-understood, routine, conventional activity. See MPEP 2106.05(d), subsection II. Even when considered in combination, the additional elements represent mere instructions to implement an abstract idea or other exception on a computer and insignificant extra-solution activity, which do not provide an inventive concept. Therefore claims 16-35 are rejected as being directed to mental processes, which amount to an abstract idea without significantly more. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Narasimhan et al. US 20240291755 Narasimhan et al. US 12,177,121 Any inquiry concerning this communication or earlier communications from the examiner should be directed to Jeffrey R. Swearingen whose telephone number is (571)272-3921. The examiner can normally be reached M-F 8:00 am - 5:00 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, Oscar Louie can be reached at 571-270-1684. 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. Jeffrey R. Swearingen Primary Examiner Art Unit 2445 /Jeffrey R Swearingen/Primary Examiner, Art Unit 2445
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Prosecution Timeline

Feb 26, 2025
Application Filed
Sep 28, 2026
Non-Final Rejection mailed — §101 (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

1-2
Expected OA Rounds
76%
Grant Probability
98%
With Interview (+21.3%)
3y 5m (~1y 9m remaining)
Median Time to Grant
Low
PTA Risk
Based on 702 resolved cases by this examiner. Grant probability derived from career allowance rate.

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