Prosecution Insights
Last updated: April 19, 2026
Application No. 18/102,209

AIRBRIDGE, SUPERCONDUCTING CIRCUIT APPARATUS AND METHOD OF FABRICATION THE SAME

Non-Final OA §102§103§112
Filed
Jan 27, 2023
Examiner
RAHIM, NILUFA
Art Unit
2893
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
NEC Corporation
OA Round
1 (Non-Final)
83%
Grant Probability
Favorable
1-2
OA Rounds
2y 5m
To Grant
82%
With Interview

Examiner Intelligence

Grants 83% — above average
83%
Career Allow Rate
374 granted / 451 resolved
+14.9% vs TC avg
Minimal -1% lift
Without
With
+-1.2%
Interview Lift
resolved cases with interview
Typical timeline
2y 5m
Avg Prosecution
38 currently pending
Career history
489
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
44.5%
+4.5% vs TC avg
§102
28.7%
-11.3% vs TC avg
§112
21.1%
-18.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 451 resolved cases

Office Action

§102 §103 §112
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 . Priority Receipt is acknowledged of certified copies of papers required by 37 CFR 1.55. Election/Restrictions Applicant’s election without traverse of Group I, claims 1-13 in the reply filed on 10/27/2025 is acknowledged. Claims 14-20 have been withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected invention, i.e., Group II, there being no allowable generic or linking claim. Election was made without traverse in the reply filed on 10/27/2025. Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claim 13 is rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. Claim 13 recites “a plurality of lateral members provided perpendicular to a longitudinal direction the bridge girder part, the plurality of lateral members connecting the bridge girder parts of the plurality of the air bridges provided at a predetermined interval along a longitudinal direction the bridge girder parts to form a mesh structure” in lines 6-10. Firstly, the phrase “perpendicular to a longitudinal direction the bridge girder part” should read as perpendicular to a longitudinal direction of the bridge girder parts to be grammatically correct. Secondly, the same phrase “a longitudinal direction the bridge girder parts” has been cited twice, once in lines 6-7 and then in lines 9-10. The second citation in lines 9-10 causes ambiguity as to whether it is referring to the same longitudinal direction of the bridge girder parts cited in lines 6-7 or a different one. For examination purpose, they will be interpreted as same. 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) 1-5, 7-11 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Chan et al. (US 20210265261 A1; hereinafter “Chan”). In re claim 1, Chan discloses an airbridge (figs. 3-4) comprising: first and second bridge abutments 301, 302 contacted with first and second conductors 104, 105 (¶42-43), respectively, the first and second conductors 104, 105 opposing each other via a gap (“first superconductive area 104 and a second superconductive area 105, which are separated from each other by a discontinuity”; hereinafter “G”. ¶37), wherein a third conductor 111 is provided extending in the gap (¶34), the first to third conductors 104, 105, 111 each provided on a substrate (¶17; hereinafter “Subx); first and second bridge piers (e.g., intermediate portions between the planar end portions 301, 302 and the top portion of the middle portion 303. Hereinafter “Br_P1” and “Br_P2”) rising from the first and second bridge abutments 301, 302, respectively; and a bridge girder part (e.g., top portion of the middle portion 303; hereinafter “Br_G”) having both ends supported by the first and second bridge piers (Br_P1, Br_P2) in air, the bridge girder part Br_G striding over the third conductor 111, wherein a first intersection edge 304 (¶45), at which the first bridge abutment 301 intersects with a base of the first bridge pier Br_P1, is of a convex shape protruded against a first virtual straight line connecting end points of the first intersection edge at which the first intersection edge intersects with both sides of the first bridge abutment 301 (see fig. 4(c) annotated below), and a second intersection edge 305 (¶45), at which the second bridge abutment 302 intersects with a base of the second bridge pier Br_P2, is of a convex shape protruded against a second virtual straight line connecting end points of the second intersection edge at which the second intersection edge intersects with both sides of the second bridge abutment 302 (see fig. 4(c) annotated below). PNG media_image1.png 568 652 media_image1.png Greyscale In re claim 2, Chan discloses in figs. 3-4, the airbridge according to claim 1, wherein the first intersection edge 304 takes a shape of a convex curve protruded against the first virtual straight line toward a direction opposite to a side of the first bridge abutment 301 opposing the first virtual straight line, and the second intersection edge 305 takes a shape of a convex curve protruded against the second virtual straight line toward a direction opposite to a side of the second bridge abutment 302 opposing the second virtual straight line (see fig. 4(c) annotated above). In re claim 3, Chan discloses in figs. 3-4, the airbridge according to claim 1, wherein the first intersection edge 304 takes a shape of a convex curve protruded against the first virtual straight line toward a side of the first bridge abutment 301 opposing the first virtual straight line, and the second intersection edge 305 takes a shape of a convex curve protruded against the second virtual straight line toward a side of the second bridge abutment 302 opposing the second virtual straight line (see fig. 4(g)). In re claim 4, Chan discloses in figs. 3-4, the airbridge according to claim 1, wherein each of the first and second bridge piers has a configuration in which a convex degree of the convex shape corresponding to each of the first and second intersection edges at the bases of the first and second bridge piers is gradually mitigated toward a top of each of the first and second bridge piers (see fig. 4(c) annotated above). In re claim 5, Chan discloses in figs. 3-4, the airbridge according to claim 1, wherein the bridge girder part Br_G located at the tops of the first and second bridge piers Br_P1, Br_P2, has a transverse cross section with flat top and bottom edges. In re claim 7, Chan discloses superconducting circuit apparatus (figs. 1-4) (FIG. 3 illustrates an airbridge 113 for making connections on a superconducting chip; ¶42) comprising: first and second conductors 104, 105 arranged opposing each other (¶37); a third conductor 111 extended in a gap between the first and second conductors 104, 105 (“first superconductive area 104 and a second superconductive area 105, which are separated from each other by a discontinuity”; hereinafter “G”. ¶34-37), the first, second and third conductors 111, 104, 105 each made of a superconducting material (¶33-37); and an airbridge 113 striding over the third conductor 111 to bridge first and second conductors 104, 105 (¶36, 42), wherein the airbridge includes: first and second bridge abutments 310, 302 contacted with first and second conductors 104, 104, respectively (¶42-43), the first and second conductors 104, 105 opposing each other via a gap (G), wherein a third conductor 111 is provided extending in the gap (G), the first to third conductors 104, 105, 111 each provided on a substrate (¶17; hereinafter “Subx); first and second bridge piers (e.g., intermediate portions between the planar end portions 301, 302 and the top portion of the airbridge 113. Hereinafter “Br_P1” and “Br_P2”) rising from the first and second bridge abutments 301, 302, respectively; and a bridge girder part (e.g., top portion of the airbridge 113; hereinafter “Br_G”) having both ends supported by the first and second bridge piers (Br_P1, Br_P2) in air, the bridge girder part (Br_G) striding over the third conductor 111, wherein a first intersection edge, at which the first bridge abutment intersects with a base of the first bridge pier, is of a convex shape protruded against a first virtual straight line connecting end points of the first intersection edge at which the first intersection edge intersects with both sides of the first bridge abutment, and a second intersection edge, at which the second bridge abutment intersects with a base of the second bridge pier, is of a convex shape protruded against a second virtual straight line connecting end points of the second intersection edge at which the second intersection edge intersects with both sides of the second bridge abutment. wherein a first intersection edge 304 (¶45), at which the first bridge abutment 301 intersects with a base of the first bridge pier Br_P1, is of a convex shape protruded against a first virtual straight line connecting end points of the first intersection edge at which the first intersection edge intersects with both sides of the first bridge abutment 301 (see fig. 4(c) annotated below), and a second intersection edge 305 (¶45), at which the second bridge abutment 302 intersects with a base of the second bridge pier Br_P2, is of a convex shape protruded against a second virtual straight line connecting end points of the second intersection edge at which the second intersection edge intersects with both sides of the second bridge abutment 302 (see fig. 4(c) annotated below). PNG media_image1.png 568 652 media_image1.png Greyscale In re claim 8, Chan discloses in figs. 1-4, the superconducting circuit apparatus according to claim 7, wherein the first intersection edge 304 takes a shape of a convex curve protruded against the first virtual straight line toward a direction opposite to a side of the first bridge abutment 301 opposing the first virtual straight line, and the second intersection edge 305 takes a shape of a convex curve protruded against the second virtual straight line toward a direction opposite to a side of the second bridge abutment 302 opposing the second virtual straight line (see fig. 4(c) annotated above). In re claim 9, Chan discloses in figs. 1-4, the superconducting circuit apparatus according to claim 7, wherein the first intersection edge 304 takes a shape of a convex curve protruded against the first virtual straight line toward a side of the first bridge abutment 301 opposing the first virtual straight line, and the second intersection edge 305 takes a shape of a convex curve protruded against the second virtual straight line toward a side of the second bridge abutment 302 opposing the second virtual straight line (see fig. 4(g)). In re claim 10, Chan discloses in figs. 1-4, the superconducting circuit apparatus according to claim 7, wherein each of the first and second bridge piers has a configuration in which a convex degree of the convex shape corresponding to each of the first and second intersection edges at the bases of the first and second bridge piers is gradually mitigated toward a top of each of the first and second bridge piers (see fig. 4(c) annotated above). In re claim 11, Chan discloses in figs. 1-4, the superconducting circuit apparatus according to claim 7, wherein the bridge girder part Br_G located at the tops of the first and second bridge piers Br_P1, Br_P2, has a transverse cross section with flat top and bottom edges. 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. Claim(s) 6 and 12 is/are rejected under 35 U.S.C. 103 as being unpatentable over Chan as applied to claims 1 and 7 above, respectively and further in view of Zhang et al. (US 20220216390 A1; hereinafter “Zhang”). In re claim 6, Chan discloses in figs. 3-4, the airbridge according to claim 1, but does not expressly disclose wherein at least the bridge girder part includes a mesh structure. In the same field of endeavor, Chang discloses an airbridge (figs.1-3) wherein at least the bridge girder part (i.e., the top part pf the airbridge 232) includes a mesh structure (¶32). It 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 to form mesh structure on the bridge girder part of Chan’s airbridge and arrive at the claimed invention. One would have been motivated to do so as Zhang teaches by having openings like a mesh structure on the airbridge, a complete release of the bridge brace material is ensured, and bridge brace material residues are prevented from being left inside the bridge hole, thereby improving the overall device quality of the air bridge and the fabrication accuracy of the air bridge (¶11 of Zhang). In re claim 12, Chan as modified by Zhang discloses the superconducting circuit apparatus according to claim 7, but does not expressly disclose wherein at least the bridge girder part includes a mesh structure. In the same field of endeavor, Chang discloses an airbridge (figs.1-3) wherein at least the bridge girder part (i.e., the top part pf the airbridge 232) includes a mesh structure (¶32). It 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 to form mesh structure on the bridge girder part of Chan’s airbridge and arrive at the claimed invention. One would have been motivated to do so as Zhang teaches by having openings like a mesh structure on the airbridge, a complete release of the bridge brace material is ensured, and bridge brace material residues are prevented from being left inside the bridge hole, thereby improving the overall device quality of the air bridge and the fabrication accuracy of the air bridge (¶11 of Zhang). Claim(s) 13 is/are rejected under 35 U.S.C. 103 as being unpatentable over Chan as applied to claim 7 above, and further in view of Adiga et al. (US 20190089033 A1; hereinafter “Adiga”). In re claim 13, Chan discloses in figs. 1-4, the superconducting circuit apparatus according to claim 7, wherein the superconducting circuit apparatus includes: a plurality of the air bridges 112, 113 separately provided in parallel and striding over the third conductor 111 to bridge first and second conductors 104 (¶36-38). Chan does not expressly disclose a plurality of lateral members provided perpendicular to a longitudinal direction the bridge girder part, the plurality of lateral members connecting the bridge girder parts of the plurality of the air bridges provided at a predetermined interval along a longitudinal direction the bridge girder parts to form a mesh structure. In the same field of endeavor, Adiga discloses superconducting circuit apparatus (figs. 1-3), wherein a plurality of the air bridges separately provided in parallel (“the pattern is designed such that the bridge will be multiple substantially parallel bridges. For example, the bridge could actually be two bridges with crossbeams connecting the two bridges”; ¶56), a plurality of lateral members provided perpendicular to a longitudinal direction the bridge girder part, the plurality of lateral members connecting the bridge girder parts of the plurality of the air bridges provided at a predetermined interval along a longitudinal direction the bridge girder parts to form a mesh structure (“the pattern is designed such that the bridge will be multiple substantially parallel bridges. For example, the bridge could actually be two bridges with crossbeams connecting the two bridges. In an embodiment, the etching could form the bridge into a mesh shape with multiple hole” ¶56). It 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 to form a plurality of bridges with lateral connecting members to form a mesh in the airbridge of Chan and arrive at the claimed invention. One would have been motivated to do so as Chan teaches the holes between multiple airbridges are formed such that the base material can be etched through the one or more holes, and where the set of one or more holes is sized such that metal cannot be deposited through the set of one or more holes (¶56). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to NILUFA RAHIM whose telephone number is (571)272-8926. The examiner can normally be reached M-F 9am-5:30pm EST. 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, Yara J. Green can be reached at (571) 270-3035. 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. /NILUFA RAHIM/Primary Examiner, Art Unit 2893
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Prosecution Timeline

Jan 27, 2023
Application Filed
Nov 05, 2025
Non-Final Rejection — §102, §103, §112 (current)

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Prosecution Projections

1-2
Expected OA Rounds
83%
Grant Probability
82%
With Interview (-1.2%)
2y 5m
Median Time to Grant
Low
PTA Risk
Based on 451 resolved cases by this examiner. Grant probability derived from career allow rate.

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