Prosecution Insights
Last updated: April 19, 2026
Application No. 18/932,381

POLYMER TEMPLATING OF ALPHA-PHASE TANTALUM

Non-Final OA §103
Filed
Oct 30, 2024
Examiner
CHEN, BRET P
Art Unit
1718
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Lawrence Livermore National Security, LLC
OA Round
1 (Non-Final)
84%
Grant Probability
Favorable
1-2
OA Rounds
2y 9m
To Grant
99%
With Interview

Examiner Intelligence

Grants 84% — above average
84%
Career Allow Rate
944 granted / 1122 resolved
+19.1% vs TC avg
Strong +17% interview lift
Without
With
+16.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
29 currently pending
Career history
1151
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
50.4%
+10.4% vs TC avg
§102
7.8%
-32.2% vs TC avg
§112
27.7%
-12.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1122 resolved cases

Office Action

§103
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 Claims 1-26 are pending in this application. Election/Restrictions Applicant's election with traverse of claims 10-26 in the reply filed on 02/24/2026 is acknowledged. The traversal is on the ground(s) that the specific contentions listed demonstrate reasons why the present claims are directed to a patentably indistinct inventive concept. This is not found persuasive because the search and prosecution of method and product claims presents a serious burden and because method and product claims presents different issues. The requirement is still deemed proper and is therefore made FINAL. Claims 1-9 are withdrawn from consideration as being directed to a nonelected invention. Specification Applicant is reminded of the proper content of an abstract of the disclosure. A patent abstract is a concise statement of the technical disclosure of the patent and should include that which is new in the art to which the invention pertains. The abstract should not refer to purported merits or speculative applications of the invention and should not compare the invention with the prior art. If the patent is of a basic nature, the entire technical disclosure may be new in the art, and the abstract should be directed to the entire disclosure. If the patent is in the nature of an improvement in an old apparatus, process, product, or composition, the abstract should include the technical disclosure of the improvement. The abstract should also mention by way of example any preferred modifications or alternatives. Where applicable, the abstract should include the following: (1) if a machine or apparatus, its organization and operation; (2) if an article, its method of making; (3) if a chemical compound, its identity and use; (4) if a mixture, its ingredients; (5) if a process, the steps. Extensive mechanical and design details of an apparatus should not be included in the abstract. The abstract should be in narrative form and generally limited to a single paragraph within the range of 50 to 150 words in length. See MPEP § 608.01(b) for guidelines for the preparation of patent abstracts. It is noted that the claimed invention is directed to a method. The examiner suggests amending the abstract to reflect same. The lengthy specification has not been checked to the extent necessary to determine the presence of all possible minor errors. Applicant’s cooperation is requested in correcting any errors of which applicant may become aware in the specification. Claim Rejections - 35 USC § 103 The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. Claims 10-17 are rejected under 35 U.S.C. 103 as being unpatentable over Kan (9,358,737) in view of Wiechart et al. (WO 2009/122378). Kan teaches a 3d manufacturing process of a 3d structure (title) in which a 3D mold is formed by sputtering a metal seed layer on a surface of a 3D polymer template (claim 12) followed by one or more metallic layers by electroplating a metallization layer (claim 13 and Figure 1) such as nickel (col.10 lines 62-65), which is a transition metal. However, the reference fails to teach a BCC structure. Wiechart teaches a method of fabricating a metallization structure (title) in which tantalum is deposited on a TaN seed layer where the tantalum can have a bcc structure (100). It would have been obvious to use a metal film having a bcc structure in Kan with the expectation of success because Wiechart teaches of using a metal with a bcc structure. Regarding claim 11, Kan teaches titanium (col.11 line 19). Regarding claim 12, Wiechart teaches tantalum (100). Regarding claim 13, Kan teaches room temperature (col.1 lines 62-67). Regarding claim 14, the applicant requires a specific thickness. Kan teaches a thickness of 20 nm (col.11 line 19). To utilize the claimed thickness would have been obvious in the absence of a showing of criticality. Regarding claim 15, Kan teaches a thickness of 100 nm (col.8 lines 35-36). Regarding claim 16, Kan teaches removing the polymer template (claim 13). Regarding claim 17, Kan teaches removing residue (claim 13). Allowable Subject Matter Claims 18-26 are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. The prior art references fail to teach or suggest forming the polymer template as required in claim 18, from which claims 19-26 depend. Any inquiry concerning this communication or earlier communications from the examiner should be directed to BRET CHEN whose telephone number is (571)272-1417. The examiner can normally be reached M-F 8:30-8:30 MT. 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, Gordon Baldwin can be reached at (571) 272-5166. 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. /BRET P CHEN/Primary Examiner, Art Unit 1718 03/16/2026
Read full office action

Prosecution Timeline

Oct 30, 2024
Application Filed
Mar 17, 2026
Non-Final Rejection — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12595563
SUBSTRATE PROCESSING METHOD
2y 5m to grant Granted Apr 07, 2026
Patent 12595554
METHOD FOR AREA-SELECTIVE GROWTH OF NOBLE METAL THIN FILMS USING ATOMIC LAYER DEPOSITION
2y 5m to grant Granted Apr 07, 2026
Patent 12590364
CYCLICAL DEPOSITION METHODS
2y 5m to grant Granted Mar 31, 2026
Patent 12577661
METHOD OF FORMING A COATING SYSTEM
2y 5m to grant Granted Mar 17, 2026
Patent 12577677
ABRASION-RESISTANT COATINGS FOR HIGH-TEMPERATURE SUBSTRATES
2y 5m to grant Granted Mar 17, 2026
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
84%
Grant Probability
99%
With Interview (+16.6%)
2y 9m
Median Time to Grant
Low
PTA Risk
Based on 1122 resolved cases by this examiner. Grant probability derived from career allow rate.

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