Prosecution Insights
Last updated: April 19, 2026
Application No. 18/214,037

HIGH TEMPERATURE SUPERCONDUCTING MATERIAL AND A METHOD FOR PRODUCTION

Non-Final OA §103
Filed
Jun 26, 2023
Examiner
WARTALOWICZ, PAUL A
Art Unit
1735
Tech Center
1700 — Chemical & Materials Engineering
Assignee
True 2 Materials Pte. Ltd.
OA Round
1 (Non-Final)
64%
Grant Probability
Moderate
1-2
OA Rounds
3y 5m
To Grant
82%
With Interview

Examiner Intelligence

Grants 64% of resolved cases
64%
Career Allow Rate
529 granted / 832 resolved
-1.4% vs TC avg
Strong +19% interview lift
Without
With
+18.6%
Interview Lift
resolved cases with interview
Typical timeline
3y 5m
Avg Prosecution
31 currently pending
Career history
863
Total Applications
across all art units

Statute-Specific Performance

§101
1.5%
-38.5% vs TC avg
§103
48.8%
+8.8% vs TC avg
§102
18.4%
-21.6% vs TC avg
§112
24.7%
-15.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 832 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 . 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. The factual inquiries for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. Claim(s) 1-3, 5-10, 12-15 is/are rejected under 35 U.S.C. 103 as being unpatentable over Dorris (US 5866515) in view of Manthiram (“Synthesis of the high-Tc superconductor…”). Regarding claims 1, 5-7, 8, 12-14; Dorris teaches a superconductive coating (paint) and a process of making the same (abstract) comprising forming a dispersion of a high temperature superconducting powder in a liquid (col. 1, lines 40-55) wherein the powder is YBCO (col. 3, lines 20-30). Dorris fails to teach that the powder has a morphology as claimed. Manthiram teaches a YBCO superconducting powder (abstract) wherein the powder has the morphology of agglomerates (fig. 3). Therefore, it would have been obvious to one of ordinary skill in the art to provide the powder including the morphology of agglomerates in Dorris in order to provide a configuration known in the art as taught by Manthiram. Regarding claims 2-3, 9-10, Dorris teaches that the dispersion comprises ethanol (col. 3, lines 55-65). Regarding claim 7, 14, it appears that X is limited to Mg for y greater than 0. However, it appears that the claims do not require X to be present (y can be 0) such that Dorris meets the claim limitation. Regarding claim 15, Dorris teaches applying the coating (paint) to a surface(fine silver wire coated with the superconductor dispersion; col. 1, lines 1-10). Claim(s) 16-19 is/are rejected under 35 U.S.C. 103 as being unpatentable over Ketcham (US 5814262) in view of Manthiram (“Synthesis of the high-Tc superconductor…”). Ketcham teaches a multilayer film (substrate, superconducting layer; col. 4, lines 5-10) wherein the superconducting layer comprises a YBCO HTS powder (Example 18). Ketcham fails to teach that the powder has a morphology as claimed. Manthiram teaches a YBCO superconducting powder (abstract) wherein the powder has the morphology of agglomerates (fig. 3). Therefore, it would have been obvious to one of ordinary skill in the art to provide the powder including the morphology of agglomerates in Ketcham in order to provide a configuration known in the art as taught by Manthiram. Regarding claim 19, it appears that X is limited to Mg for y greater than 0. However, it appears that the claims do not require X to be present (y can be 0) such that Ketcham meets the claim limitation. Claim(s) 16-19 is/are rejected under 35 U.S.C. 103 as being unpatentable over Watanabe (US 5202305) in view of Manthiram. Watanabe teaches a multilayer film (substrate, superconducting layer, inter alia; abstract) wherein the superconducting layer comprises a YBCO HTS powder (col. 2, line 55-col. 3, line 10). Watanabe fails to teach that the powder has a morphology as claimed. Manthiram teaches a YBCO superconducting powder (abstract) wherein the powder has the morphology of agglomerates (fig. 3). Therefore, it would have been obvious to one of ordinary skill in the art to provide the powder including the morphology of agglomerates in Watanabe in order to provide a configuration known in the art as taught by Manthiram. Regarding claim 19, it appears that X is limited to Mg for y greater than 0. However, it appears that the claims do not require X to be present (y can be 0) such that Watanabe meets the claim limitation. Claim(s) 20 is/are rejected under 35 U.S.C. 103 as being unpatentable over Watanabe (US 5202305) in view of Manthiram and Harshavardhan (US 5420102). Watanabe teaches a product as described above in claim 16. Watanabe teaches a primer layer (substrate), first insulator layer (intermediate layer), superconductor layer, and a barrier layer (protective layer) (abstract). Watanabe fails to teach a second insulating layer. Harshavardhan, however, teaches a superconducting film (abstract) comprising at least two buffer films for the purpose of reducing dielectric and conducting losses (abstract). Therefore, it would have been obvious to one of ordinary skill in the art to provide at least two buffer films in Watanabe in order to reduce dielectric and conducting losses as taught by Harshavardhan. It appears that the second buffer layer as taught by Harshavardhan meets the limitation of a second insulating layer. Allowable Subject Matter Claims 4, 11 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 following is a statement of reasons for the indication of allowable subject matter: the prior art of record fails to teach or suggest the limitations of these claims in combination with claims 1 and 8, respectively. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to PAUL A WARTALOWICZ whose telephone number is (571)272-5957. The examiner can normally be reached Monday-Friday 9 am - 5 pm. 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, Keith Walker can be reached at 571-272-3458. 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. /PAUL A WARTALOWICZ/ Primary Examiner, Art Unit 1735
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Prosecution Timeline

Jun 26, 2023
Application Filed
Sep 12, 2023
Response after Non-Final Action
Jan 23, 2026
Non-Final Rejection — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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HTS LINKED PARTIAL INSULATION FOR HTS FIELD COILS
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Patent 12589993
METHODS FOR PHOTOCATALYTIC WATER SPLITTING OF PRODUCED WATERS
2y 5m to grant Granted Mar 31, 2026
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HTS BEARING AND FLYWHEEL SYSTEMS AND METHODS
2y 5m to grant Granted Mar 24, 2026
Patent 12580109
SUPERCONDUCTING COIL
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
64%
Grant Probability
82%
With Interview (+18.6%)
3y 5m
Median Time to Grant
Low
PTA Risk
Based on 832 resolved cases by this examiner. Grant probability derived from career allow rate.

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