Prosecution Insights
Last updated: April 19, 2026
Application No. 18/662,602

IRREVERSIBLE DIGITAL FINGERPRINTS FOR PRESERVING OBJECT SECURITY

Non-Final OA §DP
Filed
May 13, 2024
Examiner
HUYNH, VAN D
Art Unit
2665
Tech Center
2600 — Communications
Assignee
Alitheon, Inc.
OA Round
1 (Non-Final)
87%
Grant Probability
Favorable
1-2
OA Rounds
2y 6m
To Grant
99%
With Interview

Examiner Intelligence

Grants 87% — above average
87%
Career Allow Rate
630 granted / 721 resolved
+25.4% vs TC avg
Moderate +13% lift
Without
With
+13.4%
Interview Lift
resolved cases with interview
Typical timeline
2y 6m
Avg Prosecution
25 currently pending
Career history
746
Total Applications
across all art units

Statute-Specific Performance

§101
8.8%
-31.2% vs TC avg
§103
32.0%
-8.0% vs TC avg
§102
30.9%
-9.1% vs TC avg
§112
14.2%
-25.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 721 resolved cases

Office Action

§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 . Claim Objections Claims 1 and 16 are objected to because of the following informalities: Claim 1, lines 20-21, Examiner suggests replacing “at least one of the reference digital fingerprint” with –at least one of the reference digital fingerprints--. Claim 16, lines 3-4, Examiner suggests replacing “at least one of the reference digital fingerprint” with –at least one of the reference digital fingerprints--. 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 1-19 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-29 of U.S. Patent No. 11,983,957. Although the claims at issue are not identical, they are not patentably distinct from each other because the scope of the claims is substantially similar and recites similar limitations. It is because the claims in the continuation application are broader than the ones in the patent application, In re Van Ornum, 686 F.2d 937, 214 USPQ 761 (CCPA 1982). For example, claim 1 of the present application recites “determine”, “compare”, “filter”, and “determine” steps which are the same as the patented claim 1. Furthermore, the cited patent has more limitations, thereby encompassing the present application's limitations. Therefore, claim 1 of the present invention is broader than claim 1 of the patented application. The prior art does not appear to teach or make obvious the subject matter of the claims. However, the nonstatutory double patenting rejection must be overcome. Allowable Subject Matter The following is a statement of reasons for the indication of allowable subject matter: The prior art made of record and considered pertinent to the applicant's disclosure, taken individually or in combination, does not teach the claimed invention having the following limitations, in combination with the remaining claimed limitations. Regarding independent claim 1, the closest prior art does not teach or suggest the claimed invention having “for at least one of the one or more points of interest represented by the sample digital fingerprint of the physical object to be authenticated, compare one or more feature vectors associated with respective ones of the one or more points of interest represented by the sample digital fingerprint with one or more feature vectors associated with one or more points of interest of a plurality of reference digital fingerprints that represent one or more reference physical objects; for each of a number of the one or more points of interest of the plurality of reference digital fingerprints that has a respective feature vector that matches within a first range with at least one of the feature vectors associated with respective ones of the one or more points of interest represented by the sample digital fingerprint, filter the matches based at least in part on the non-positional characterization values; and determine whether the sample digital fingerprint sufficiently matches at least one of the reference digital fingerprint based on both the matching of the feature vectors within the first range and the filtering of the matches based at least in part on the non-positional characterization values within a second range”, and a combination of other limitations thereof as recited in the claim. Regarding dependent claims 2-19, the claims have been found allowable due to its dependencies to claim 1 above. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to VAN D HUYNH whose telephone number is (571)270-1937. The examiner can normally be reached 8AM-6PM. 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, Stephen R Koziol can be reached at (408) 918-7630. 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. /VAN D HUYNH/Primary Examiner, Art Unit 2665
Read full office action

Prosecution Timeline

May 13, 2024
Application Filed
Feb 10, 2026
Non-Final Rejection — §DP (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12602798
METHOD AND APPARATUS FOR GENERATING SUBJECT-SPECIFIC MAGNETIC RESONANCE ANGIOGRAPHY IMAGES FROM OTHER MULTI-CONTRAST MAGNETIC RESONANCE IMAGES
2y 5m to grant Granted Apr 14, 2026
Patent 12602784
MEDICAL DEVICE FOR TRANSCRIPTION OF APPEARANCES IN AN IMAGE TO TEXT WITH MACHINE LEARNING
2y 5m to grant Granted Apr 14, 2026
Patent 12594046
METHOD AND APPARATUS FOR ASSISTING DIAGNOSIS OF CARDIOEMBOLIC STROKE BY USING CHEST RADIOGRAPHIC IMAGES
2y 5m to grant Granted Apr 07, 2026
Patent 12586186
JAUNDICE ANALYSIS SYSTEM AND METHOD THEREOF
2y 5m to grant Granted Mar 24, 2026
Patent 12582345
Systems and Methods for Identifying Progression of Hypoxic-Ischemic Brain Injury
2y 5m to grant Granted Mar 24, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

AI Strategy Recommendation

Get an AI-powered prosecution strategy using examiner precedents, rejection analysis, and claim mapping.
Powered by AI — typically takes 5-10 seconds

Prosecution Projections

1-2
Expected OA Rounds
87%
Grant Probability
99%
With Interview (+13.4%)
2y 6m
Median Time to Grant
Low
PTA Risk
Based on 721 resolved cases by this examiner. Grant probability derived from career allow 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