Prosecution Insights
Last updated: April 19, 2026
Application No. 18/401,593

MANAGEMENT OF WIRELESS AND WIRED MULTICAST TRAFFIC

Non-Final OA §112
Filed
Dec 31, 2023
Examiner
CHENG, CHI TANG P
Art Unit
2463
Tech Center
2400 — Computer Networks
Assignee
Fortinet Inc.
OA Round
1 (Non-Final)
80%
Grant Probability
Favorable
1-2
OA Rounds
3y 2m
To Grant
99%
With Interview

Examiner Intelligence

Grants 80% — above average
80%
Career Allow Rate
466 granted / 579 resolved
+22.5% vs TC avg
Strong +25% interview lift
Without
With
+25.4%
Interview Lift
resolved cases with interview
Typical timeline
3y 2m
Avg Prosecution
25 currently pending
Career history
604
Total Applications
across all art units

Statute-Specific Performance

§101
9.1%
-30.9% vs TC avg
§103
49.8%
+9.8% vs TC avg
§102
14.1%
-25.9% vs TC avg
§112
18.6%
-21.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 579 resolved cases

Office Action

§112
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 § 112 The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claims 1-4 are rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. Claim 1: (1)”populating a CAM … with stations and a VLAN group associated with each station” is indefinite. It is unclear whether the “stations” and “each station” recited here belong to the earlier recited group of “[monitored] stations that join and leave …”, or otherwise. (2)”detecting … for a specific VLAN group” is indefinite because it is unclear whether the “a specific VLAN group” recited here is one of the “VLAN group associated with each station” recited earlier in the claim. (3)”by at the one or more access points,” would appear to be a typographical error; this recitation should probably read, instead, ”at the one or more access points, by”. Claim 2 is rejected as indefinite due to its dependence from indefinite parent claim 1, and further because claim 2 does not provide the necessary clarification to obviate the indefiniteness of claim 1. Claim 3: please see indefiniteness rejection for claim 1 above. Claim 4: (1)”populating a CAM … with stations and a VLAN group associated with each station” is indefinite. It is unclear whether the “stations” and “each station” recited here belong to the earlier recited group of “[monitored] stations that join and leave …”, or otherwise. (2)”detecting … for a specific VLAN group” is indefinite because it is unclear whether the “a specific VLAN group” recited here is one of the “VLAN group associated with each station” recited earlier in the claim. (3)”by at the one or more access points,” would appear to be a typographical error; this recitation should probably read, instead, ”at the one or more access points, by”. (4)”a stations” would appear to be a typographical error. (5)Please note that the introduction of the claim recites a “memory … storing:”, which would necessitate that the subject matter following this “storing” be data or information that may be “stor[ed]”. However, following this recited act of “storing”, the claim recites “a stations …”, “populating …”, “detecting …” and “segregating …”, which are either a method, an action, a step consisting of an action, or a typographical error; that is, none of the subject matter recited after the step of “storing” is clearly data or information that can be properly “stor[ed]”. Clarification is required. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. U.S. Patent Publication No. 2008/0049703 A1 to Kneckt et al. U.S. Patent Publication No. 2019/0394056 A1 to Xie et al. U.S. Patent Publication No. 2008/0192661 A1 to Hamamoto et al. U.S. Patent Publication No. 2019/0261138 A1 to Thubert et al. Any inquiry concerning this communication or earlier communications from the examiner should be directed to CHI TANG P CHENG whose telephone number is (571)272-9021. The examiner can normally be reached M-F, 9:30AM - 6PM. 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, Asad M Nawaz can be reached at (571)272-3988. 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. /CHI TANG P CHENG/ Primary Examiner, Art Unit 2463
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Prosecution Timeline

Dec 31, 2023
Application Filed
Dec 18, 2025
Non-Final Rejection — §112 (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
80%
Grant Probability
99%
With Interview (+25.4%)
3y 2m
Median Time to Grant
Low
PTA Risk
Based on 579 resolved cases by this examiner. Grant probability derived from career allow rate.

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