Prosecution Insights
Last updated: April 19, 2026
Application No. 18/915,995

PRACTICAL SORTING ON LARGE-SCALE ENCRYPTED DATA

Non-Final OA §112§DP
Filed
Oct 15, 2024
Examiner
SONG, HOSUK
Art Unit
2435
Tech Center
2400 — Computer Networks
Assignee
Seoul National University R&Db Foundation
OA Round
1 (Non-Final)
95%
Grant Probability
Favorable
1-2
OA Rounds
2y 5m
To Grant
97%
With Interview

Examiner Intelligence

Grants 95% — above average
95%
Career Allow Rate
1440 granted / 1520 resolved
+36.7% vs TC avg
Minimal +3% lift
Without
With
+2.7%
Interview Lift
resolved cases with interview
Typical timeline
2y 5m
Avg Prosecution
24 currently pending
Career history
1544
Total Applications
across all art units

Statute-Specific Performance

§101
15.2%
-24.8% vs TC avg
§103
7.1%
-32.9% vs TC avg
§102
37.0%
-3.0% vs TC avg
§112
13.7%
-26.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1520 resolved cases

Office Action

§112 §DP
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 1-15 are pending in this application. 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 filing of a terminal disclaimer by itself is not a complete reply to a nonstatutory double patenting (NSDP) rejection. A complete reply requires that the terminal disclaimer be accompanied by a reply requesting reconsideration of the prior Office action. Even where the NSDP rejection is provisional the reply must be complete. See MPEP § 804, subsection I.B.1. For a reply to a non-final Office action, see 37 CFR 1.111(a). For a reply to final Office action, see 37 CFR 1.113(c). A request for reconsideration while not provided for in 37 CFR 1.113(c) may be filed after final for consideration. See MPEP §§ 706.07(e) and 714.13. The USPTO Internet website contains terminal disclaimer forms which may be used. Please visit www.uspto.gov/patent/patents-forms. The actual 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/apply/applying-online/eterminal-disclaimer. Claims 1-15 rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-13 of U.S. Patent No. 12,149,604. Although the claims at issue are not identical, they are not patentably distinct from each other (see table below). Instant Application U.S. Patent No. 12,149,604 Claim 1: A method for processing homomorphic ciphertexts, the method comprising: receiving an input of an instruction for sorting regarding a plurality of homomorphic ciphertexts; sorting the plurality of homomorphic ciphertexts by using a sorter which can sort 3 more homomorphic ciphertexts in a single stage; and outputting the sorting result, wherein the sorter performs sorting by using a comparison function that selectively outputs a bigger value or a smaller value between two input values. Claim 1: A method for processing homomorphic ciphertexts, the method comprising: receiving an input of an instruction for sorting a plurality of homomorphic ciphertexts; sorting the ciphertexts by using a 5-way sorter which can sort five homomorphic ciphertexts in a single stage; and outputting the sorted homomorphic wherein the 5-way sorter is configured to: based on a first homomorphic ciphertext, a second homomorphic ciphertext, and a third homomorphic ciphertext being input, and using a comparison function between two input values, calculate a larger value and a smaller value between the first homomorphic ciphertext and the second homomorphic ciphertext, input the larger value and the third homomorphic ciphertext into the comparison function and output a first output value, input the smaller value and the third homomorphic ciphertext into the comparison function and output a third output value, and calculate a second output value by subtracting the first output value and the third output value from a summed-up value of the first to third homomorphic ciphertexts and output the second output value. Although the conflicting claims are not identical, they are not patentably distinct from each other because both are directed to a method for processing homomorphic ciphertexts and is substantively-similar independent claims 8,15 said claims are merely a broader version of claim 1 of U.S. Patent No. 12,149,604 contains at least all of the limitations (or obvious equivalents) recited in claim 1 of the instant application. With regard to claims of the 2-7,9-14, each depending from one of independent claims 1,8 and 15, said claims are rejected on the grounds of nonstatutory double patenting as being unpatentable over U.S. Patent No.12,149,604 in view the foregoing nonstatutory double patenting rejection of claim 1. 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 1-15 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 1,8,15 recites the limitation “a sorter which can sort 3 more homomorphic ciphertexts in a single stage”. Claim is vague and lacks specificity. It is unclear what specific structure, function or algorithm constitutes a sorter which can sort 3 more homomorphic ciphertexts in a single stage. Claims 1 recites the limitation "the sorting result". There is insufficient antecedent basis for this limitation in the claim. Claims 2-7,9-14, dependent on one of claims 1,8 or 15. 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, Joseph Hirl can be reached at 571-272-3685. 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

Oct 15, 2024
Application Filed
Jan 24, 2026
Non-Final Rejection — §112, §DP (current)

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
95%
Grant Probability
97%
With Interview (+2.7%)
2y 5m
Median Time to Grant
Low
PTA Risk
Based on 1520 resolved cases by this examiner. Grant probability derived from career allow rate.

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