Prosecution Insights
Last updated: May 29, 2026
Application No. 17/820,380

SUPERCONDUCTING MONOLITHIC MICROWAVE INTEGRATED CIRCUIT PROCESSING

Non-Final OA §102§103
Filed
Aug 17, 2022
Examiner
MAI, ANH D
Art Unit
2893
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
International Business Machines Corporation
OA Round
1 (Non-Final)
38%
Grant Probability
At Risk
1-2
OA Rounds
0m
Est. Remaining
48%
With Interview

Examiner Intelligence

Grants only 38% of cases
38%
Career Allowance Rate
262 granted / 697 resolved
-30.4% vs TC avg
Moderate +10% lift
Without
With
+9.9%
Interview Lift
resolved cases with interview
Typical timeline
3y 7m
Avg Prosecution
29 currently pending
Career history
754
Total Applications
across all art units

Statute-Specific Performance

§101
0.3%
-39.7% vs TC avg
§103
82.6%
+42.6% vs TC avg
§102
11.7%
-28.3% vs TC avg
§112
5.1%
-34.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 697 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 . Status of the Claims Applicant’s election without traverse of Group I, Claims 1-8, in the reply filed on November 18, 2025 is acknowledged. Non-Elected inventions, Claims 9-20 have been withdrawn from consideration. Claims 1-20 are pending. Action on merits of Elected Invention, Claims 1-8 follows. Information Disclosure Statement The information disclosure statement (IDS) submitted on August 17, 2022 and December 06, 2023 have been considered by the examiner. Specification The title of the invention is not descriptive. A new title is required that is clearly indicative of the invention to which the claims are directed. The following title is suggested: A MONOLITHIC MICROWAVE INTEGRATED CIRCUIT (MMIC) HAVING A SUPERCONDUCTING PASSIVE ELEMENT COMPRISING TANTALUM NITRIDE COUPLED TO A FIRST AND SECOND CIRCUIT ELEMENTS 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 1-2 and 7-8 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by CASPER et al. (US. Pub. No. 2004/0080021) of record. With respect to claim 1, CASPER teaches a device as claimed including: a monolithic microwave integrated circuit comprising a superconducting passive element (1011, 1012, 1014) coupled to a first circuit element and to a second circuit element, wherein a material of the superconducting passive element (1011, 1012, 1014) comprises Tantalum Nitride. (See FIGs. 10, 15, 16). With respect to claim 2, the superconducting passive element of CASPER comprises an inductor (1012) coupled to the first circuit element and to the second circuit element. With respect to claim 7, the device of CASPER further comprises: a metal contact (0604) on the superconducting passive element. With respect to claim 8, the metal contact (0604) of CASPER comprises at least one of Gold, Copper or Aluminum. Claims 1 and 3-8 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by TILMANS et al. (US. Pub. No. 2003/0042567). With respect to claim 1, TILMANS teaches a device as claimed including: a monolithic microwave integrated circuit comprising a superconducting passive element (40, 41, 43) coupled to a first circuit element and to a second circuit element, wherein a material of the superconducting passive element comprises Tantalum Nitride. (See FIGs. 7-10). With respect to claim 3, the superconducting passive element (41) of TILMANS comprises a transmission line coupled to the first circuit element and to the second circuit element. With respect to claim 4, the superconducting passive element (41) of TILMANS comprises an interconnect coupled to the first circuit element and to the second circuit element. With respect to claim 5, the superconducting passive element (41) of TILMANS comprises a coplanar waveguide coupled to the first circuit element and to the second circuit element. With respect to claim 6, the superconducting passive element (41) of TILMANS comprises a microstrip coupled to the first circuit element and to the second circuit element. With respect to claim 7, the device of TILMANS further comprises: a metal contact (44) on the superconducting passive element (41). With respect to claim 8, the metal contact (44) of TILMANS comprises at least one of Gold, Copper or Aluminum. 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 2 is rejected under 35 U.S.C. 103 as being unpatentable over TILMANS ‘567 as applied to claim 1 above, and further in view of CASPER ‘021. TILMANS teaches the device as described in claim 1 above including the superconducting passive element comprises Tantalum Nitride, wherein the superconducting passive element coupled to the first circuit element and to the second circuit element. Thus, TILMANS is shown to teach all the features of the claim with the exception of explicitly disclosing the superconducting passive element comprising an inductor. However, CASPER teaches a device including a superconducting passive element (1012) comprises an inductor coupled to the first circuit element and to the second circuit element. (See FIG. 10). Therefore, it would have been obvious to one having ordinary skill in the art at the time of invention was made to form the superconducting passive element of TILMANS comprising the inductor coupled to the first circuit element and to the second circuit element as taught by CASPER to provide a high reliability passive element. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to ANH D MAI whose telephone number is (571)272-1710 (Email: Anh.Mai2@uspto.gov). The examiner can normally be reached 10:00-4:00PM. 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, Sue A Purvis can be reached at 571-272-1236. 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. /ANH D MAI/Primary Examiner, Art Unit 2893
Read full office action

Prosecution Timeline

Aug 17, 2022
Application Filed
Feb 24, 2026
Non-Final Rejection mailed — §102, §103
Mar 06, 2026
Interview Requested
Mar 10, 2026
Interview Requested
May 12, 2026
Interview Requested
May 22, 2026
Examiner Interview Summary
May 22, 2026
Applicant Interview (Telephonic)

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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
38%
Grant Probability
48%
With Interview (+9.9%)
3y 7m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 697 resolved cases by this examiner. Grant probability derived from career allowance rate.

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