Office Action Predictor
Last updated: April 16, 2026
Application No. 18/401,705

LIGHT BACKDOOR ATTACK METHOD IN PHYSICAL WORLD

Non-Final OA §101§112
Filed
Jan 01, 2024
Examiner
DULANEY, KATHLEEN YUAN
Art Unit
2666
Tech Center
2600 — Communications
Assignee
Zhejiang University
OA Round
1 (Non-Final)
77%
Grant Probability
Favorable
1-2
OA Rounds
3y 1m
To Grant
91%
With Interview

Examiner Intelligence

Grants 77% — above average
77%
Career Allow Rate
504 granted / 653 resolved
+15.2% vs TC avg
Moderate +14% lift
Without
With
+13.7%
Interview Lift
resolved cases with interview
Typical timeline
3y 1m
Avg Prosecution
32 currently pending
Career history
685
Total Applications
across all art units

Statute-Specific Performance

§101
21.3%
-18.7% vs TC avg
§103
33.0%
-7.0% vs TC avg
§102
16.3%
-23.7% vs TC avg
§112
26.4%
-13.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 653 resolved cases

Office Action

§101 §112
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. The claimed invention is directed to an abstract idea significantly more. Claim 1 recites mathematical calculations. This judicial exception is not integrated into a practical application because calculations are made to train a model, but the calculations are not applied. The only step that is not a mathematical calculations is generating a light trigger and capturing training images, which are methods of organizing human activity/ managing personal behavior. This method also does nothing to apply the method to a practical application. The claims do not include additional elements that are sufficient to amount to significantly more than the judicial exception because the claims do not utilize a particular machine to carry out the process, nor is the process being applied to a practical application, i.e. the trained model is used to evaluate images for a user to recognize security threats. Claims 2-7 also are directed to an abstract idea. Claim 2 only specifies the light color, claim 3 specifies the mathematical constraints of the labels, claim 4 specifies the mathematical constraints of the training images, claim 5 provides more mathematical calculations evaluating the model, and claims 6 and 7 provide a type of mathematical calculation for the effectiveness. Claim Objections Claim 6 is objected to because of the following informalities: Claim 6 recites the limitation “the light backdoor attack” in line 3. It appears as if the applicant is referring to the light backdoor attack of “the evaluating effectiveness of light backdoor attack”; however, this limitation is claimed twice (once in claim 1 and again in claim 6). Therefore “the light backdoor attack” could refer to either of the previously claimed attacks. The applicant could amend claim 6 to read :the evaluating effectiveness of the light backdoor attack” to overcome this objection. Appropriate correction is required. 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. Claim 5 is 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 5 recites the limitation "the evaluating effectiveness of attack" in line 4. The applicant previously claims “evaluating effectiveness of light backdoor attack” and “evaluating attack effectiveness”. It is unclear as to what the applicant is referring to. Claim 5 recites the limitation "the source label" in the last line. There is insufficient antecedent basis for this limitation in the claim. Allowable Subject Matter As allowable subject matter has been indicated, applicant's reply must either comply with all formal requirements or specifically traverse each requirement not complied with. See 37 CFR 1.111(b) and MPEP § 707.07(a). Claims 1-7 contain allowable subject matter. Claim 1 contains allowable subject matter regarding the generating by a flashlight, a light trigger on a traffic sign, and training the claimed backdoor model that results in a clean label when a clean image is input and results in a backdoor label when the claimed backdoor image Tp is input, the training using the claimed training data set Xp, which is the union of the claimed clean training set and the claimed backdoor training set which is captured and acquired by a camera with all images marked as the claimed target label, and further includes backdoor image Tp defined by the claimed equation utilizing the trigger, clean image and claimed ratio of the backdoor trigger to the backdoor image, evaluating the effectiveness of light backdoor attack by applying the trained backdoor model to a testing set. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to KATHLEEN YUAN DULANEY whose telephone number is (571)272-2902. The examiner can normally be reached M1:9am-5pm, th1:9am-1pm, fri1 9am-3pm, m2: 9am-5pm, t2:9-5 th2:9am-5pm, f2: 9am-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, Emily Terrell can be reached at 5712703717. 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. /KATHLEEN Y DULANEY/Primary Examiner, Art Unit 2666 11/18/2025
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Prosecution Timeline

Jan 01, 2024
Application Filed
Dec 29, 2025
Non-Final Rejection — §101, §112
Apr 02, 2026
Response Filed

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
77%
Grant Probability
91%
With Interview (+13.7%)
3y 1m
Median Time to Grant
Low
PTA Risk
Based on 653 resolved cases by this examiner. Grant probability derived from career allow rate.

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