Prosecution Insights
Last updated: October 25, 2026
Application No. 19/242,865

METHODS AND DEVICES FOR AUTOMATED PUBLIC KEY VERIFICATION

Non-Final OA §DP
Filed
Jun 18, 2025
Priority
Nov 25, 2019 — GB 1917131.3 +2 more
Examiner
ZAIDI, SYED A
Art Unit
2432
Tech Center
2400 — Computer Networks
Assignee
Nchain Licensng AG
OA Round
1 (Non-Final)
82%
Grant Probability
Favorable
1-2
OA Rounds
1y 3m
Est. Remaining
94%
With Interview

Examiner Intelligence

Grants 82% — above average
82%
Career Allowance Rate
649 granted / 792 resolved
+23.9% vs TC avg
Moderate +12% lift
Without
With
+12.1%
Interview Lift
resolved cases with interview
Typical timeline
2y 8m
Avg Prosecution
29 currently pending
Career history
835
Total Applications
across all art units

Statute-Specific Performance

§101
13.2%
-26.8% vs TC avg
§103
43.9%
+3.9% vs TC avg
§102
14.0%
-26.0% vs TC avg
§112
20.2%
-19.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 792 resolved cases

Office Action

§DP
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 . DETAILED ACTION This is a reply to the application filed on 6/18/2025, in which, claims 1-20 are pending. Claims 1, 12, and 20 are independent. When making claim amendments, the applicant is encouraged to consider the references in their entireties, including those portions that have not been cited by the examiner and their equivalents as they may most broadly and appropriately apply to any particular anticipated claim amendments. Information Disclosure Statement The information disclosure statement (IDS) submitted is in compliance with the provisions of 37 CFR 1.97. Accordingly, the information disclosure statement is being considered by the examiner. Drawings The drawings filed on 6/18/2025 are accepted. Specification The disclosure filed on 6/18/2025 is accepted. Double Patenting 1. A rejection based on double patenting of the "same invention" type finds its support in the language of 35 U.S.C. 101 which states that "whoever invents or discovers any new and useful process ... may obtain a patent therefor ..." (Emphasis added). Thus, the term "same invention," in this context, means an invention drawn to identical subject matter. See Miller v. Eagle Mfg. Co., 151 U.S. 186 (1894); In re Ockert, 245 F.2d 467, 114 USPQ 330 (CCPA 1957); and In re Vogel, 422 F.2d 438, 164 USPQ 619 (CCPA 1970). 2. 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 obviousness-type 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); and 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 a nonstatutory double patenting ground provided the conflicting application or patent either is shown to be commonly owned with this application, or claims an invention made as a result of activities undertaken within the scope of a joint research agreement. Effective January 1, 1994, a registered attorney or agent of record may sign a terminal disclaimer. A terminal disclaimer signed by the assignee must fully comply with 37 CFR 3.73(b). Claims 1, 12, and 20 are rejected on the ground of nonstatutory obviousness-type double patenting as being unpatentable over claims 1-2, 6-7, 13, 18-19, 26, and 33 of US 12375298 B2. Although the conflicting claims are not identical, they are not patentably distinct from each other because all the limitations recited in the independent claims 1, 12, and 20 of the present application and are broader than limitations recited in independent claims 1-2, 6-7, 13, 18-19, 26, and 33 of US 12375298 B2. Claims 2-11 and 13-19 of the present application are not patentably distinct from respective claims 1-33 of US 12375298 B2 because the claims recite substantially the same features. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure: US 20200235926 A1 US 20200366480 A1 US 12511648 B2 US 20220014370 A1 US 20200127851 A1 US 20230353357 A1 US 20150178724 A1 Any inquiry concerning this communication or earlier communications from the examiner should be directed to SYED A ZAIDI whose telephone number is (571)270-5995. The examiner can normally be reached Monday-Thursday: 5:30AM-5:30PM. 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, Jeffrey Nickerson can be reached at (469) 295-9235. 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. /SYED A ZAIDI/Primary Examiner, Art Unit 2432
Read full office action

Prosecution Timeline

Jun 18, 2025
Application Filed
Oct 01, 2026
Non-Final Rejection mailed — §DP (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12755031
SYSTEMS AND METHODS FOR DATA EXFILTRATION PREVENTION IN A ZERO-TRUST ENVIRONMENT
2y 11m to grant Granted Oct 06, 2026
Patent 12737437
SYSTEMS AND METHODS FOR MAPPING A NETWORKED ENVIRONMENT WITH CROSS ACCOUNT CLUSTERING TO MONITORING AND/OR DETECT FRAUDULENT ENTITY NETWORKS
2y 8m to grant Granted Sep 15, 2026
Patent 12717897
MANAGING UNTYPED NETWORK TRAFFIC FLOWS
2y 5m to grant Granted Aug 25, 2026
Patent 12712886
SYSTEM AND METHOD FOR VERIFYING THE IDENTITY OF EMAIL SENDERS TO IMPROVE EMAIL SECURITY WITHIN AN ORGANIZATION
1y 10m to grant Granted Aug 18, 2026
Patent 12688328
DECENTRALIZED PLATFORM AND ARCHITECTURE
2y 2m to grant Granted Jul 21, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.
Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

1-2
Expected OA Rounds
82%
Grant Probability
94%
With Interview (+12.1%)
2y 8m (~1y 3m remaining)
Median Time to Grant
Low
PTA Risk
Based on 792 resolved cases by this examiner. Grant probability derived from career allowance rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month