Prosecution Insights
Last updated: July 17, 2026
Application No. 18/918,769

QUANTUMPROOF BLOCKCHAIN

Non-Final OA §DP
Filed
Oct 17, 2024
Priority
Oct 04, 2017 — provisional 62/567,879 +6 more
Examiner
TRAN, VU V
Art Unit
2491
Tech Center
2400 — Computer Networks
Assignee
Jintai Ding
OA Round
1 (Non-Final)
90%
Grant Probability
Favorable
1-2
OA Rounds
5m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 90% — above average
90%
Career Allowance Rate
360 granted / 401 resolved
+31.8% vs TC avg
Strong +17% interview lift
Without
With
+17.1%
Interview Lift
resolved cases with interview
Typical timeline
2y 2m
Avg Prosecution
4 currently pending
Career history
412
Total Applications
across all art units

Statute-Specific Performance

§101
4.8%
-35.2% vs TC avg
§103
73.6%
+33.6% vs TC avg
§102
10.5%
-29.5% vs TC avg
§112
6.0%
-34.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 401 resolved cases

Office Action

§DP
DETAILED ACTION This Office Action is in response to application 18/918, 769 filed on October 17, 2024. In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. Claims 1, 3-8, 10-13 are pending and herein considered. 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 . Double Patenting The nonstatutory double patenting rejection is based on a judicially created doctrine grounded in public policy (a policy reflected in the statute) so as to prevent the unjustified or improper timewise extension of the “right to exclude” granted by a patent and to prevent possible harassment by multiple assignees. A nonstatutory double patenting rejection is appropriate where the conflicting claims are not identical, but at least one examined application claim is not patentably distinct from the reference claim(s) because the examined application claim is either anticipated by, or would have been obvious over, the reference claim(s). See, e.g., In re Berg, 140 F.3d 1428, 46 USPQ2d 1226 (Fed. Cir. 1998); In re Goodman, 11 F.3d 1046, 29 USPQ2d 2010 (Fed. Cir. 1993); In re Longi, 759 F.2d 887, 225 USPQ 645 (Fed. Cir. 1985); In re Van Ornum, 686 F.2d 937, 214 USPQ 761 (CCPA 1982); In re Vogel, 422 F.2d 438, 164 USPQ 619 (CCPA 1970); In re Thorington, 418 F.2d 528, 163 USPQ 644 (CCPA 1969). A timely filed terminal disclaimer in compliance with 37 CFR 1.321(c) or 1.321(d) may be used to overcome an actual or provisional rejection based on nonstatutory double patenting provided the reference application or patent either is shown to be commonly owned with the examined application, or claims an invention made as a result of activities undertaken within the scope of a joint research agreement. See MPEP § 717.02 for applications subject to examination under the first inventor to file provisions of the AIA as explained in MPEP § 2159. See MPEP § 2146 et seq. for applications not subject to examination under the first inventor to file provisions of the AIA . A terminal disclaimer must be signed in compliance with 37 CFR 1.321(b). The USPTO Internet website contains terminal disclaimer forms which may be used. Please visit www.uspto.gov/patent/patents-forms. The filing date of the application in which the form is filed determines what form (e.g., PTO/SB/25, PTO/SB/26, PTO/AIA /25, or PTO/AIA /26) should be used. A web-based eTerminal Disclaimer may be filled out completely online using web-screens. An eTerminal Disclaimer that meets all requirements is auto-processed and approved immediately upon submission. For more information about eTerminal Disclaimers, refer to www.uspto.gov/patents/process/file/efs/guidance/eTD-info-I.jsp. Related Art The following prior art made of record and cited on PTO-892, but not relied upon, is considered pertinent to applicant’s disclosure: U.S. Pub. Number 2018/0091309 A1, to Misoczki-Misoczki teaches hash signature control logic is to retrieve a first nonce, to concatenate the first nonce and a message to be transmitted and to determine whether a first message representative satisfies a target threshold. The signer signature logic is to generate a first transmitted signature based, at least in part, on the first message representative, if the first message representative satisfies the target threshold. The hash signature control logic is to retrieve a second nonce, concatenate the second nonce and the message to be transmitted and to determine whether a second message representative satisfies the target threshold. U.S. Pub. Number 2014/0298038 A1 to Gauravaram-Gauravaram teaches a random value for randomizing the message may be obtained based on a randomization criterion. The randomization criterion may define whether random value generated for a signature algorithm can be used or a different one is to be generated. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to VU V TRAN whose telephone number is (571)270-1708. The examiner can normally be reached M-F, 8 AM- 4 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, William Kozuch can be reached on 571-272-7589. 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. /VU V TRAN/Primary Examiner, Art Unit 2491
Read full office action

Prosecution Timeline

Oct 17, 2024
Application Filed
Jun 17, 2026
Non-Final Rejection mailed — §DP (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12671581
COMPUTATION ON LWE-ENCRYPTED VALUES
2y 7m to grant Granted Jun 30, 2026
Patent 12659131
LIFECYCLE ADMINISTRATION OF DOMAIN NAME BLOCKCHAIN ADDRESSES
2y 1m to grant Granted Jun 16, 2026
Patent 12652154
DATA PROCESSING METHOD, APPARATUS, DEVICE AND MEDIUM
2y 11m to grant Granted Jun 09, 2026
Patent 12634110
METHOD AND SYSTEM FOR PROTECTING CRYPTOGRAPHIC OPERATIONS AGAINST SIDE-CHANNEL ATTACKS
2y 11m to grant Granted May 19, 2026
Patent 12634113
METHOD FOR PROCESSING DYNAMIC DATA BASED ON HOMOMORPHIC ENCRYPTION WHICH CARRIES OUT UNLIMITED ARITHMETIC OPERATIONS WITHOUT BOOTSTRAPPING AND REENCRYPTION OF CONTROL DATA
2y 10m to grant Granted May 19, 2026
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
90%
Grant Probability
99%
With Interview (+17.1%)
2y 2m (~5m remaining)
Median Time to Grant
Low
PTA Risk
Based on 401 resolved cases by this examiner. Grant probability derived from career allowance rate.

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