Prosecution Insights
Last updated: October 04, 2026
Application No. 18/982,778

Applying and Using Unique Unclonable Physical Identifiers

Non-Final OA §102§Other
Filed
Dec 16, 2024
Priority
Nov 05, 2019 — provisional 62/930,875 +4 more
Examiner
MAI, THIEN T
Art Unit
2876
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Dust Identity Inc.
OA Round
4 (Non-Final)
59%
Grant Probability
Moderate
4-5
OA Rounds
1y 4m
Est. Remaining
79%
With Interview

Examiner Intelligence

Grants 59% of resolved cases
59%
Career Allowance Rate
416 granted / 703 resolved
-8.8% vs TC avg
Strong +20% interview lift
Without
With
+19.8%
Interview Lift
resolved cases with interview
Typical timeline
3y 1m
Avg Prosecution
37 currently pending
Career history
739
Total Applications
across all art units

Statute-Specific Performance

§101
9.9%
-30.1% vs TC avg
§103
60.2%
+20.2% vs TC avg
§102
22.7%
-17.3% vs TC avg
§112
1.8%
-38.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 703 resolved cases

Office Action

§102 §Other
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 . Continued Examination Under 37 CFR 1.114 A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after final rejection. Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on 7/28/26 has been entered. Claim Rejections - 35 USC § 102 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 (i.e., changing from AIA to pre-AIA ) 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. The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. Claim(s) 38-61 is/are rejected under 35 U.S.C. 102a1 as being anticipated by Gaathon967 (WO 2017155967) Gaathon967 discloses 38. A method, comprising: receiving an object having a unique marker (103a) comprising a distribution of elements; scanning the unique marker of the object and extracting orientation information from the unique marker, the orientation information indicating relative-spatial orientations of the respective elements with respect to one another (Fig. 1B, 12-15); performing integrity verification of the object based on the extracted orientation information, wherein performing the integrity verification comprises: identifying a first sector of the unique marker, wherein the first sector comprises a first area on the object (first sector interpreted as a region comprising a subset of elements within a superset; par. 130); identifying a second sector of the unique marker, wherein the second sector comprises a second, distinct area on the object (i.e. another region/subset or the superset itself, par. 130; the superset can be a marker attached to the article, par. 25); determining an integrity level for the object based on the first sector and the second sector, wherein determining the integrity level for the object comprises analyzing changes within and between the first and second sectors (Gaathon967 discloses orientation information extracted from the object can indicate the relative spatial orientations of all the elements in the superset, and a subset of the orientation information indicating relative spatial orientations of the subset can be identified, par. 167; extracting the element information includes extracting topographical information from the object, where the topographical information indicates relative spatial topographies (e.g., relative sizes, relative shapes, etc.) of the respective elements of the object; par. 122; thus, the integrity level corresponds to relative or different spatial topologies of the elements within and between the subset sector and another subset sector or the superset sector, par. 130) associating the integrity level with the unique marker of the object (par. 46-47, 122, 167, 128-130). 39.38, wherein the integrity level is determined based on a relationship of the first sector area of the unique marker to the second sector area of the unique marker (par. 122, 130, 167: first subset sector and another subset sector are within the superset sector). 40.39, wherein the relationship is based on relative size of the first sector to the second sector (par. 122, 128-130). 41.39, wherein the relationship is based on an orientation of at least one of the first or second sectors of the unique marker (see discussion regarding claim 38-39 above). 42.39, wherein the relationship is based on misalignment between the first and second sectors of the unique marker (each element in a subset can be mapped relative to the superset and host material, each element is relative to another element in terms of at least separation distance and orientation; i.e. par. 35-36, 39, 42-43, 117-120, 128-130). 43.38, wherein the integrity level is determined based on differential analysis comparison to one or more previous scans of the unique marker (par. 45-47). 44.38, wherein the integrity level is determined based on one or more thresholds (par. 28, 44, 50, 58). 45.38, comprising: flagging the object for inspection based on the integrity level associated with the unique marker (par. 42-43, 128-130, 83, 92-93, 144, 154). 46.38, comprising: outputting a location of a sector of compromised integrity in the first sector (Fig. 14, par. 76, 88, 91, 122: deformation of the object causes properties of elements including location to change, which can be extracted via scanning). 47.38, comprising: generating a unique code for the object based on the orientation information (par. 126-130, 171). 48.38, comprising: identifying at least one of the first or second sectors of the unique marker based on the relative spatial orientations of the respective elements (par. 87) 49.38, wherein the unique marker is hidden or not visible to the naked eye (par. 32). 50.38, wherein the first sector includes evidence of compromised integrity (par. 38-39, 42-43, 76, 88, 91). 51.50, wherein evidence of compromised integrity includes evidence of one or more of the following: environmental stress, removal of elements, replacement of elements, shifting of elements, destruction of elements, mechanical stress, mechanical wear, deformation, article use, or article activation (par. 76, 88, 91). 52.38, comprising: scanning the unique marker of the object at different points in a chain of custody and extracting orientation information from the unique marker at each scan; for each scan of the object at different points, performing integrity verification of the object based on the extracted orientation information for the respective scan; and determining, based on the performed integrity verification, a point in the chain of custody where tamper occurred (Fig. 14, par. 76, 85, 88, 91). 53.38, wherein the unique marker is formed on a surface of the object (Fig. 1). 54.38, wherein the unique marker is formed on a seal, sticker, film, or wrap on the object (Fig. 1). Re claims 55-61, see discussion regarding claims above. Response to Arguments Applicant's arguments have been fully considered but they are not persuasive. Applicant argues that does not disclose the claimed invention as currently amended. However, upon further review, it is found that the cited prior art can still meet the current claims. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to THIEN MAI whose telephone number is (571)272-8283. The examiner can normally be reached M-F 8-5pm. 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, Steven Paik can be reached at 571-272-2404. 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. /THIEN T MAI/ Primary Examiner, Art Unit 2876
Read full office action

Prosecution Timeline

Show 5 earlier events
Dec 04, 2025
Response Filed
Feb 19, 2026
Final Rejection mailed — §102, §Other
Apr 20, 2026
Response after Non-Final Action
Apr 30, 2026
Final Rejection mailed — §102, §Other
Jun 30, 2026
Response after Non-Final Action
Jul 28, 2026
Request for Continued Examination
Jul 30, 2026
Response after Non-Final Action
Sep 10, 2026
Non-Final Rejection mailed — §102, §Other (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

4-5
Expected OA Rounds
59%
Grant Probability
79%
With Interview (+19.8%)
3y 1m (~1y 4m remaining)
Median Time to Grant
High
PTA Risk
Based on 703 resolved cases by this examiner. Grant probability derived from career allowance rate.

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