Prosecution Insights
Last updated: April 19, 2026
Application No. 18/052,645

Anisotropic Pattern Transfer Via Colloidal Lithography

Final Rejection §102
Filed
Nov 04, 2022
Examiner
RUMMEL, IAN A
Art Unit
1785
Tech Center
1700 — Chemical & Materials Engineering
Assignee
The Trustees of the University of Pennsylvania
OA Round
4 (Final)
56%
Grant Probability
Moderate
5-6
OA Rounds
3y 4m
To Grant
76%
With Interview

Examiner Intelligence

Grants 56% of resolved cases
56%
Career Allow Rate
318 granted / 568 resolved
-9.0% vs TC avg
Strong +20% interview lift
Without
With
+19.7%
Interview Lift
resolved cases with interview
Typical timeline
3y 4m
Avg Prosecution
27 currently pending
Career history
595
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
55.0%
+15.0% vs TC avg
§102
23.1%
-16.9% vs TC avg
§112
18.5%
-21.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 568 resolved cases

Office Action

§102
DETAILED ACTION Claim Rejections - 35 USC § 102 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. Claims 16-19 and 21 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by “Self-Assembly of Parallel Atomic Wires and Periodic Clusters of Silicon on a Vicinal Si(111) Surface,” Sekiguchi et al., Phys. Rev. Lett. 95, 106101, 2005, as evidenced by “Structural investigation of silicon nanowires using GIXD and GISAXS: Evidence of complex saw-tooth faceting,” David et al., Surface Science 602 (2008), 2675-2680, as set forth in the Office Action of 7-28-2025 Response to Arguments Applicant's arguments filed 10-27-2025 have been fully considered but they are not persuasive. Regarding the teachings of Sekiguchi, Applicant argues that Sekiguchi does not teach the claimed invention because the product of Sekiguchi features silicon nanowires grown on a silicon substrate via deposition, which differs from the present claims which require the structures to be “formed in the material of the wafer” as recited in claim 16. This is unpersuasive because there is no apparent difference between the structure of the product of Sekiguchi and the product of Applicant’s claim 16, as it is unclear how a product featuring structures grown on the substrate would structurally differ from a product featuring structures that has been formed in the material of the substrate. In each case, the result is a pattern of structures of a particular material on a surface of the same material. To the extent that claim 16 contains limitations related to how the product is made, the claim is a product-by-process claim. Note that product-by-process claims are not limited to the manipulations of the recited steps, and are instead limited only to the structure implied by the steps. Conclusion THIS ACTION IS MADE FINAL. Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to Ian A Rummel whose telephone number is (571)270-5692. The examiner can normally be reached Monday - Thursday and alternating Fridays, 8:30-5:00. 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, Mark Ruthkosky can be reached at (571) 272-1291. 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. /IAN A RUMMEL/Primary Examiner, Art Unit 1785
Read full office action

Prosecution Timeline

Nov 04, 2022
Application Filed
Aug 19, 2024
Non-Final Rejection — §102
Nov 21, 2024
Response Filed
Mar 11, 2025
Final Rejection — §102
Jul 09, 2025
Request for Continued Examination
Jul 14, 2025
Response after Non-Final Action
Jul 24, 2025
Non-Final Rejection — §102
Oct 27, 2025
Response Filed
Feb 26, 2026
Final Rejection — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12601970
PHOTOSENSITIVE RESIN COMPOSITION, METHOD FOR MANUFACTURING PATTERNED CURED PRODUCT, CURED PRODUCT, INTERLAYER INSULATING FILM, COVER COAT LAYER, SURFACE PROTECTIVE FILM, AND ELECTRONIC COMPONENT
2y 5m to grant Granted Apr 14, 2026
Patent 12589607
PRINTING PROCESSES FOR PRODUCING TEXTURED IMAGES
2y 5m to grant Granted Mar 31, 2026
Patent 12569878
PLATED STEEL SHEET
2y 5m to grant Granted Mar 10, 2026
Patent 12552955
COATING COMPOSITION AND LAMINATE
2y 5m to grant Granted Feb 17, 2026
Patent 12545797
INKJET INKS FOR METALLIC PRINTED IMAGES
2y 5m to grant Granted Feb 10, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

5-6
Expected OA Rounds
56%
Grant Probability
76%
With Interview (+19.7%)
3y 4m
Median Time to Grant
High
PTA Risk
Based on 568 resolved cases by this examiner. Grant probability derived from career allow rate.

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