Prosecution Insights
Last updated: October 04, 2026
Application No. 18/258,691

EXCITONIC BOSE-EINSTEIN CONDENSATE (BEC) AS QUBITS USING SEMICONDUCTOR NANOSTRUCTURES FOR QUANTUM TECHNOLOGIES

Final Rejection §112
Filed
Jun 21, 2023
Priority
Jun 08, 2021 — IN 202121025498 +1 more
Examiner
STOFFA, WYATT A
Art Unit
2881
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Indian Institute Of Science Education And Research
OA Round
4 (Final)
79%
Grant Probability
Favorable
5-6
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 79% — above average
79%
Career Allowance Rate
827 granted / 1041 resolved
+11.4% vs TC avg
Strong +23% interview lift
Without
With
+22.8%
Interview Lift
resolved cases with interview
Typical timeline
2y 3m
Avg Prosecution
64 currently pending
Career history
1120
Total Applications
across all art units

Statute-Specific Performance

§101
2.8%
-37.2% vs TC avg
§103
38.7%
-1.3% vs TC avg
§102
20.3%
-19.7% vs TC avg
§112
32.2%
-7.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1041 resolved cases

Office Action

§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 . Information Disclosure Statement As previously noted, the listing of references in the specification is not a proper information disclosure statement. 37 CFR 1.98(b) requires a list of all patents, publications, or other information submitted for consideration by the Office, and MPEP § 609.04(a) states, "the list may not be incorporated into the specification but must be submitted in a separate paper." Therefore, unless the references have been cited by the examiner on form PTO-892, they have not been considered. Claim Rejections - 35 USC § 112 The following is a quotation of the first paragraph of 35 U.S.C. 112(a): (a) IN GENERAL.—The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor or joint inventor of carrying out the invention. The following is a quotation of the first paragraph of pre-AIA 35 U.S.C. 112: The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor of carrying out his invention. Claims 1-2, 6, 8-9 are rejected under 35 U.S.C. 112(a) or 35 U.S.C. 112 (pre-AIA ), first paragraph, as failing to comply with the written description requirement. The claim(s) contains subject matter which was not described in the specification in such a way as to reasonably convey to one skilled in the relevant art that the inventor or a joint inventor, or for applications subject to pre-AIA 35 U.S.C. 112, the inventor(s), at the time the application was filed, had possession of the claimed invention. Claims 1 is amended to recite, “wherein the generated macroscopic quantum states of the plurality of excitonic BECs or excitonic matter-wave are used as the Qubits to implement quantum-state control in one or more quantum technologies.” Similarly, claim 2 is amended to recite, “wherein the generated macroscopic quantum states which forms the plurality of excitonic BECs or excitonic matter-waves are used as the Qubits… to implement quantum-state control in one or more quantum technologies.” The courts have described the essential question to be addressed in a description requirement issue in a variety of ways. An objective standard for determining compliance with the written description requirement is, "does the description clearly allow persons of ordinary skill in the art to recognize that he or she invented what is claimed." In re Gosteli, 872 F.2d 1008, 1012, 10 USPQ2d 1614, 1618 (Fed. Cir. 1989). Under Vas-Cath, Inc. v. Mahurkar, 935 F.2d 1555, 1563-64, 19 USPQ2d 1111, 1117 (Fed. Cir. 1991), to satisfy the written description requirement, an applicant must convey with reasonable clarity to those skilled in the art that, as of the filing date sought, he or she was in possession of the invention, and that the invention, in that context, is whatever is now claimed. In the instant case, the claim defines the invention by functional language specifying a desired result to be, namely “implement quantum-state control in one or more quantum technologies.” However, the disclosure fails to explain how the quantum technology is controlled, or what kinds of control are within the scope of the claims. Instead, the disclosure provides general knowledge by listing quantum technologies. Instant PgPub para 64. Such disclosures provide the abstract parameters of the problem of controlling the quantum technologies by enumerating said technologies, but fail to describe how this problem is solved. In fact, the disclosure provides no evidence whatsoever that the problem is solved. Quantum technologies, such as quantum computers and registers, are cutting-edge fields. There are numerous different architectures for implementing quantum computers and registers that do not even rely on the same fundamental physics, e.g., nv diamond qubits vs Josephson junction qubits.1 However, in the instant case the applicant offers no explanation as to how an entirely different type of Qubit, i.e., a BEC, might interact with other quantum technologies. Further, the disclosure provides no details as to what aspects of any of these quantum technologies can even be controlled. As such, one of ordinary skill in the art would not recognize that the applicant had possession of “implement[ing] quantum-state control in one or more quantum technologies.” Since one of ordinary skill in the art would not recognize that the applicant had possession of the claimed invention, the claims are rejected for failing the written description requirement. 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 1-2, 6, 8-9 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. or the step, or whether infringement occurs when the step actually occurs. Claims 1 and 2 recite variation of: Qubits which are a two-level quantum superposition state of excitons within the excitonic BEC in semiconductors through the following demonstrations…” It is unclear whether these two claims require that the Qubits perform the three recited demonstrations, or if they need to be able to perform the three recited demonstrations, or if they need only perform one of the demonstrations. The specification offers no clarity on this issue. Since one of ordinary skill in the art cannot discern the scope of the claims, they are rejected as indefinite. Response to Arguments Applicant's arguments filed 9/8/26 have been fully considered but they are not fully persuasive. The 35 USC 112 (a) rejections of record are maintained. The applicant argues that the 35 USC 112, first paragraph rejections are improper because a “POSITA working in semiconductor quantum devices would readily understand that once stable and controllable qubits are generated, such qubits are capable of being incorporated into known quantum computing architectures, quantum registers, [etc].” This is not persuasive. Quantum computing architectures and registers are made specifically for each modality of qubit. Applicant has presented BECs as a novel variety of qubit, and has claimed using them with “known quantum computing architectures.” One cannot simply interact BECs with trapped neutral atoms, or dripping BECs onto a Josephson Junction, and expect any sort of quantum computation. Applicant’s assertion that such technologies are well known and can be readily incorporated with each other is entirely unsupported by the record, and contradicts common knowledge. In the instant case, there is insufficient disclosure as to how the quantum technology is controlled, or what kinds of control are within the scope of the claims, or even what specific aspects of quantum technologies may be so controlled. Without disclosure as to the above noted issues, the description does not allow persons of ordinary skill in the art to recognize that the applicant/inventors invented and possessed what is claimed. Applicant asserts that the claims are enabled. This is moot, as there have been no enablement rejections to date. The 35 USC 112 (b) rejections of the previous office action are withdrawn in light of applicant’s amendments. Applicant argues that the claims are properly construed in light of the specification to refer to controlling qubit states within quantum technologies, not controlling the technologies themselves, and as such, the written description rejections regarding controlling quantum technologies are baseless. This is not persuasive. Applicant’s proffered interpretation of the claims would require that one ignore the plain text of the claims, which reads, “implement quantum-state control in one or more quantum technologies.” Even if that interpretation were to be adopted, Applicant has offered no explanation as to how to implement BECs as qubits within such technologies. Applicant notes that a counterpart patent application in India has been granted. The office applauds the timely and effective work of the Indian Patent Office. Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to WYATT A STOFFA whose telephone number is (571)270-1782. The examiner can normally be reached M-F 0700-1600 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, ROBERT KIM can be reached at 571 272 2293. 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. WYATT STOFFA Primary Examiner Art Unit 2881 /WYATT A STOFFA/ Primary Examiner, Art Unit 2881 1 Krantz, Philip, et al. "A quantum engineer's guide to superconducting qubits." Applied physics reviews 6.2 (2019): 021318.
Read full office action

Prosecution Timeline

Show 1 earlier event
Jul 31, 2025
Non-Final Rejection mailed — §112
Oct 31, 2025
Response Filed
Dec 04, 2025
Final Rejection mailed — §112
Feb 24, 2026
Request for Continued Examination
Mar 03, 2026
Response after Non-Final Action
Jun 11, 2026
Non-Final Rejection mailed — §112
Sep 08, 2026
Response Filed
Sep 23, 2026
Final Rejection mailed — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12748200
LIGHT SOURCE CHARACTERIZATION SYSTEM
4y 9m to grant Granted Sep 29, 2026
Patent 12741043
VEHICLE LAVATORY UV LIGHT SANITIZATION SYSTEM
3y 3m to grant Granted Sep 22, 2026
Patent 12738451
Charged Particle Beam Apparatus
3y 7m to grant Granted Sep 15, 2026
Patent 12716826
ANALYSIS METHOD
3y 6m to grant Granted Aug 25, 2026
Patent 12716571
APPARATUS AND METHOD FOR HIGH-EFFICIENTLY TUNING THE WAVELENGTH OF LIGHT USING COLLIMATING MODULE INCLUDING AN AXICON LENS
3y 7m to grant Granted Aug 25, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.
Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

5-6
Expected OA Rounds
79%
Grant Probability
99%
With Interview (+22.8%)
2y 3m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 1041 resolved cases by this examiner. Grant probability derived from career allowance rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month