Prosecution Insights
Last updated: August 14, 2026
Application No. 18/858,471

ZnO NANORODS PROVIDED WITH ORTHOGONAL OXIDIZED COPPER NANOPLATES AND CORRESPONDING GAS SENSOR

Non-Final OA §102§103
Filed
Oct 21, 2024
Priority
Apr 21, 2022 — LU LU501895 +1 more
Examiner
SUN, CAITLYN MINGYUN
Art Unit
1795
Tech Center
1700 — Chemical & Materials Engineering
Assignee
LUXEMBOURG INSTITUTE OF SCIENCE AND TECHNOLOGY
OA Round
1 (Non-Final)
64%
Grant Probability
Moderate
1-2
OA Rounds
1y 2m
Est. Remaining
75%
With Interview

Examiner Intelligence

Grants 64% of resolved cases
64%
Career Allowance Rate
201 granted / 316 resolved
-1.4% vs TC avg
Moderate +11% lift
Without
With
+11.1%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
53 currently pending
Career history
383
Total Applications
across all art units

Statute-Specific Performance

§101
1.6%
-38.4% vs TC avg
§103
50.8%
+10.8% vs TC avg
§102
17.1%
-22.9% vs TC avg
§112
28.6%
-11.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 316 resolved cases

Office Action

§102 §103
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 . Election/Restrictions Applicant’s election without traverse of Group II, claims 24-28, drawn to a metal oxide material in the reply filed on June 29, 2026 is acknowledged. 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 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) 24 and 26-27 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Lu (P. Lu, CuO nanosheets/ZnO nanorods synthesized by a template-free hydrothermal approach and their optical and magnetic characteristics, Ceramics International, 2017(43), pp. 9789-9805). Regarding claim 24, Lu teaches a metal oxide material ([Abstract]: nanostructured CuO/ZnO heterojunction), said metal oxide material comprising: ZnO nanorods ([Abstract]: ZnO nanorods; Fig. 4(a); ZnO nanorod); and oxidized copper particles ([Abstract]: CuO nanosheets) attached to the ZnO nanorods (Fig. 4(a): indicating CuO nanosheets attached to the ZnO nanorod); wherein the oxidized copper particles are nanoplates ([Abstract]: CuO nanosheets) extending transversally to the ZnO nanorods (Fig. 4(a)), the transversal oxidized copper nanoplates having a normal parallel to a longitudinal axis of the ZnO nanorods or inclined relative to the longitudinal axis by not more than 45⁰ (Fig. 4(a): indicating the CuO nanosheets extending transversally from the ZnO nanorod and the CuO nanosheets are perpendicular the longitudinal axis of the ZnO rod). Regarding claim 26, Lu teaches wherein the ZnO nanorods have a diameter comprised between 50 and 600nm (p. 9799, col. 2, last para.: the nanorods have the diameter of about 50 nm). Regarding claim 27, Lu disclose all limitations of claim 24, wherein the transversal oxidized copper nanoplates are perpendicular to the longitudinal axis of the ZnO nanorods (Fig. 4(a): indicating the CuO nanosheets extending transversally from the ZnO nanorod and the CuO nanosheets are perpendicular the longitudinal axis of the ZnO rod) within a tolerance of ±15⁰ (Fig. 4(a): indicating the angle between the ZnO nanorod and the CuO nanosheets is about 90⁰ within a tolerance of ±15⁰). Claim Rejections - 35 USC § 103 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 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 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 set forth in Graham v. John Deere Co., 383 U.S. 1, 148 USPQ 459 (1966), that are applied 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) 25 and 28 is/are rejected under 35 U.S.C. 103 as being unpatentable over Lu. Regarding claim 25, Lu disclose all limitations of claim 24, but fail to teach wherein the ZnO nanorods have a length comprised between 1 and 10µm. However, Lu teaches wherein the ZnO nanorods have a length comprised between 1 and 10µm (p. 9800, bridging para. of col. 1-2: the length of nanorods is up to about 1300 nm, i.e., 1.3 µm), which lies within the claimed range. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have modified Lu by adjusting the length of ZnO nanorods within the claimed range because it is known and suitable length of ZnO nanorods in the art. In the case where the claimed ranges "overlap or lie inside ranges disclosed by the prior art" a prima facie case of obviousness exists. In re Wertheim, 541 F.2d 257, 191 USPQ 90 (CCPA 1976); In re Woodruff, 919 F.2d 1575, 16 USPQ2d 1934 (Fed. Cir. 1990). MPEP 2144.05(I). Similarly, a prima facie case of obviousness exists where the claimed ranges or amounts do not overlap with the prior art but are merely close. Titanium Metals Corp. of America v. Banner, 778 F.2d 775, 783, 227 USPQ 773, 779 (Fed. Cir. 1985). MPEP 2144.05(I). Regarding claim 28, Lu disclose all limitations of claim 24, but fail to teach wherein the ZnO nanorods provided with transversal nanoplates of oxidized copper have a number of the transversal nanoplates of oxidized copper that is comprised between 10 and 100 per µm of length of ZnO nanorod. However, Lu teaches a ZnO nanorod (Fig. 4(a): the ZnO nanorod is about 600 nm according to the scale bar) and there are about 6 CuO nanosheets attached to the nanorod (Fig. 4(a)), which leads to a calculated number of the transversal nanoplates of oxidized copper is 6/600nm = 10/µm, which overlaps with the claimed range. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have modified Lu by adjusting the number of the CuO nanosheets per unit length of the ZnO nanorod within the claimed range because it is known and suitable number for CuO nanosheets attached to the ZnO nanorod disclosed in the prior art. In the case where the claimed ranges "overlap or lie inside ranges disclosed by the prior art" a prima facie case of obviousness exists. In re Wertheim, 541 F.2d 257, 191 USPQ 90 (CCPA 1976); In re Woodruff, 919 F.2d 1575, 16 USPQ2d 1934 (Fed. Cir. 1990). MPEP 2144.05(I). Similarly, a prima facie case of obviousness exists where the claimed ranges or amounts do not overlap with the prior art but are merely close. Titanium Metals Corp. of America v. Banner, 778 F.2d 775, 783, 227 USPQ 773, 779 (Fed. Cir. 1985). MPEP 2144.05(I). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to CAITLYN M SUN whose telephone number is (571)272-6788. The examiner can normally be reached M-F: 8:30am - 5:30pm. 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, Luan Van can be reached on 571-272-8521. 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. /C. SUN/Primary Examiner, Art Unit 1795
Read full office action

Prosecution Timeline

Oct 21, 2024
Application Filed
Aug 06, 2026
Non-Final Rejection mailed — §102, §103 (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

1-2
Expected OA Rounds
64%
Grant Probability
75%
With Interview (+11.1%)
3y 0m (~1y 2m remaining)
Median Time to Grant
Low
PTA Risk
Based on 316 resolved cases by this examiner. Grant probability derived from career allowance rate.

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