Prosecution Insights
Last updated: October 02, 2026
Application No. 18/277,519

Integrated Quantum Computing with Epitaxial Materials

Non-Final OA §102§112
Filed
Aug 16, 2023
Priority
Feb 17, 2021 — provisional 63/150,383 +1 more
Examiner
PATERSON, BRIGITTE A
Art Unit
Tech Center
Assignee
Columbia University
OA Round
1 (Non-Final)
76%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 76% — above average
76%
Career Allowance Rate
297 granted / 388 resolved
+16.5% vs TC avg
Strong +23% interview lift
Without
With
+22.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 8m
Avg Prosecution
21 currently pending
Career history
411
Total Applications
across all art units

Statute-Specific Performance

§101
1.4%
-38.6% vs TC avg
§103
46.6%
+6.6% vs TC avg
§102
27.0%
-13.0% vs TC avg
§112
23.6%
-16.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 388 resolved cases

Office Action

§102 §112
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 Election/Restrictions Claims 13-28 and 31-39 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected invention, there being no allowable generic or linking claim. Election was made without traverse in the reply filed on 8/10/2026. Claim Objections Claim 3 is objected to because of the following informalities: claim 3 recites “the not intentionally doped AN layer”. Suggestion: “the not intentionally doped AlN layer”. Appropriate correction is required. Claim 10 is objected to because of the following informalities: claim 10 recites “an energy bandgap of a third Group III nitride material being smaller than an energy bandgap of Group II nitride material of the Group III nitride buffer layer”. Suggestion: “an energy bandgap of the third Group III nitride material being smaller than an energy bandgap of Group III nitride material of the Group III nitride buffer layer”. Appropriate correction is required. 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. Claims 29-30 are 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 29 recites “…an electrically conductive source component recessed into at least substantially in contact with the first Group III nitride layer …an electrically conductive drain component recessed into at least substantially in contact with the first Group III nitride layer…”. The underlined portion renders the claim indefinite. The term "substantially" is a relative term which renders the claim indefinite; it is not defined by the claim, the specification does not provide a standard for ascertaining the requisite degree, and one of ordinary skill in the art would not be reasonably apprised of the scope of the invention. “Substantially” is defined as "being largely but not wholly that which is specified” (see Merriam Webster online dictionary). This language is indefinite as the specification does not describe what is required of the components in order to be considered “substantially in contact” with another feature. The term “substantially” modifies a target, and implicitly requires boundaries at some maximum value above the target and at some minimum value below the target beyond which one is not “substantially” the target any more. Neither the claims, nor the specification, defines these boundaries. The specification states “[0091] For the purpose of better describing and defining the present teachings, it is noted that terms of degree (e.g., "substantially," "about," and the like) may be used in the specification and/or in the claims. Such terms of degree are utilized herein to represent the inherent degree of uncertainty that may be attributed to any quantitative comparison, value, measurement, and/or other representation. The terms of degree may also be utilized herein to represent the degree by which a quantitative representation may vary (e.g., ±10%) from a stated reference without resulting in a change in the basic function of the subject matter at issue.” However, these are examples and not a definition of the metes and bounds of the use of the word “substantially” in this context. Thus, it is unclear whether one must be within some small percentage of deviation of the target (such as 0.01 %, 0.1 %, 1 %, 2 %, 5 %, 10 %, or some other percentage) or within a certain number of units of the target and specifically which of these possible values defines the boundaries. Therefore, the claims are rejected 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. Claims 29-30 are 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 29 recites “wherein a voltage is applied between the gate component and ground, the component structure exhibiting quantum Hall resistance.” The claim is indefinite because while claim 29 begins by reciting an apparatus, claim 29 further includes a method of using the structure by applying a voltage. The claim is not considered a product by process claim because the claim does not state that any feature was made using the applied voltage. The claim recites that the apparatus is used in a method of using. A single claim that includes both an apparatus and a method of using the apparatus is indefinite (See MPEP 2173.05(p)(II)). It is unclear if infringement would occur when the semiconductor device is created as an apparatus or when the semiconductor device is used in operation by applying a voltage. For the purposes of examination the process limitation will be treated as an intended result limitation (i.e. the apparatus must be capable of being used by applying a voltage). 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. Claim(s) 1 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by WO2019/173448 (Yan). Re claim 1, Yan teaches a quantum computing apparatus comprising: a first layer of superconductor material (NbNx layer); a not intentionally doped metal-polar Group III nitride nucleation layer (AlN nucleation layer) disposed over at least a portion of the layer of superconductor material; a Group III nitride buffer layer (GaN buffer layer) epitaxially deposited on at least a portion of the not intentionally doped metal-polar Group III nitride nucleation layer; a first Group III nitride layer (Al0.4Ga0.6N layer) epitaxially deposited on at least a portion of the Group III nitride buffer layer; and a second Group III nitride layer (GaN layer) epitaxially deposited on the first Group III nitride layer; materials and thickness of the first Group III nitride layer and the second Group III nitride layer selected such that an electronic polarization discontinuity across a heterojunction between the first Group III nitride layer and the second Group III nitride layer causes formation of a 2D electron gas (2DEG) below the second Group III nitride layer (Embodiment 1 pages 10-12 Fig. 3a). PNG media_image1.png 532 501 media_image1.png Greyscale Allowable Subject Matter Claims 2-12 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: Yan further teaches a substrate (SiC substrate Fig. 3a). And Yan teaches forming a matrix array of etched features on a substrate 10 having a first superconducting layer 20 formed thereon, an insulating, semiconductor or metallic layer 30 formed on the first superconducting layer 20, and a second superconducting layer 60 formed on the insulating, semiconductor or metallic layer 30 (Figs. 10a-e embodiment 5 pages 15-18). However, Rusen does not explicitly teach wherein this matrix structure is formed under the transistor structure comprising the 2DEG nor wherein the second superconducting layer 60 is the same as the superconducting layer formed directly on the SiC substrate in the three terminal 2DEG device relied upon in the rejection of claim 1. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to BRIGITTE A PATERSON whose telephone number is (571)272-1752. The examiner can normally be reached Monday-Friday 9:00AM-5:00PM. 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, William Kraig can be reached at 571-272-8660. 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. BRIGITTE A. PATERSON Primary Examiner Art Unit 2896 /BRIGITTE A PATERSON/Primary Examiner, Art Unit 2896
Read full office action

Prosecution Timeline

Aug 16, 2023
Application Filed
Feb 18, 2026
Response after Non-Final Action
Sep 09, 2026
Non-Final Rejection mailed — §102, §112 (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
76%
Grant Probability
99%
With Interview (+22.6%)
2y 8m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 388 resolved cases by this examiner. Grant probability derived from career allowance rate.

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