Prosecution Insights
Last updated: August 17, 2026
Application No. 19/128,137

DEVICE AND METHOD FOR PERFORMING QUANTUM STATE MODULATION ON BASIS OF QUANTUM AUTHENTICATION IN QUANTUM COMMUNICATION SYSTEM

Non-Final OA §112
Filed
May 07, 2025
Priority
Nov 09, 2022 — nonprovisional of PCTKR2022017574
Examiner
SONG, HOSUK
Art Unit
2435
Tech Center
2400 — Computer Networks
Assignee
LG Electronics Inc.
OA Round
1 (Non-Final)
95%
Grant Probability
Favorable
1-2
OA Rounds
11m
Est. Remaining
98%
With Interview

Examiner Intelligence

Grants 95% — above average
95%
Career Allowance Rate
1460 granted / 1542 resolved
+36.7% vs TC avg
Minimal +3% lift
Without
With
+2.9%
Interview Lift
resolved cases with interview
Typical timeline
2y 2m
Avg Prosecution
22 currently pending
Career history
1560
Total Applications
across all art units

Statute-Specific Performance

§101
16.5%
-23.5% vs TC avg
§103
7.2%
-32.8% vs TC avg
§102
39.2%
-0.8% vs TC avg
§112
11.0%
-29.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1542 resolved cases

Office Action

§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 . Status of Claims Claims 1-17 are pending in this application. Claims 18-20 canceled. Information Disclosure Statement The Information Disclosure Statement(s) submitted by applicant on 5/7/2025 have been considered. The submission is in compliance with the provisions of 37 CFR 1.97. Form PTO-1449 signed and attached hereto. 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 1-17 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. Claims 1,17 recites the limitation “generating information about a first quantum state on the basis of the symmetric M-order quantum state modulation by using a first authentication code and a first key shared in advance with the second device”. Claim is vague and lacks specificity. It is unclear how claimed “information” is generated and what specific contribution or role the authentication code and a first key play in the generation of the information. Therefore, claim fails to set fort the relationship among recited elements such that one of ordinary skill in the art cannot determined the scope of the claim with reasonable certainty. Claim 9 recites the limitation “information about the first quantum state is generated based on the symmetric M-order quantum state modulation(symmetric M-QSM) by using a first authentication code and a first key shared in advance with the first device”. Claim is vague and lacks specificity. It is unclear how claimed “information” is generated and what specific contribution or role the authentication code and a first key play in the generation of the information. Therefore, claim fails to set forth the relationship among recited elements such that one of ordinary skill in the art cannot determined the scope of the claim with reasonable certainty. Claims 2-8,10-16, dependent on one of claims 1,9 and are therefore rejected under the same rationale. Allowable Subject Matter Claims 1-17 would be allowable, should Applicant overcome the claim rejections under 35 U.S.C. 112 set forth herein, supra. USPTO Contact Information Any inquiry concerning this communication or earlier communications from the examiner should be directed to HOSUK SONG whose telephone number is (571)272-3857. The examiner can normally be reached Mon-Fri: 7:30AM-5:00PM. 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, Amir Mehrmanesh can be reached 571-270-3351. 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. /HOSUK SONG/ Primary Examiner, Art Unit 2435
Read full office action

Prosecution Timeline

May 07, 2025
Application Filed
Jul 15, 2026
Non-Final Rejection mailed — §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
95%
Grant Probability
98%
With Interview (+2.9%)
2y 2m (~11m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1542 resolved cases by this examiner. Grant probability derived from career allowance rate.

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