Prosecution Insights
Last updated: August 17, 2026
Application No. 18/277,563

ELECTROCHEMICAL CONVERSION TO CARBONATE-CONTAINING COMPOUNDS AND RELATED METHODS

Non-Final OA §102§112
Filed
Aug 16, 2023
Priority
Feb 17, 2021 — provisional 63/150,512 +1 more
Examiner
COHEN, BRIAN W
Art Unit
1759
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Massachusetts Institute of Technology
OA Round
1 (Non-Final)
54%
Grant Probability
Moderate
1-2
OA Rounds
3m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 54% of resolved cases
54%
Career Allowance Rate
349 granted / 641 resolved
-10.6% vs TC avg
Strong +48% interview lift
Without
With
+47.8%
Interview Lift
resolved cases with interview
Typical timeline
3y 3m
Avg Prosecution
45 currently pending
Career history
672
Total Applications
across all art units

Statute-Specific Performance

§101
0.6%
-39.4% vs TC avg
§103
57.9%
+17.9% vs TC avg
§102
14.1%
-25.9% vs TC avg
§112
23.9%
-16.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 641 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 Applicant's election with traverse of Group I, Species A in the reply filed on 5/26/2026 is acknowledged. The traversal is on the ground(s) that claim 1 uses comprising language and therefore covers embodiments with more than one pair of electrodes. This is not found persuasive because applicant is arguing Genus/Species, while the Examiner provided a restriction by election of species. Even if the Examiner takes into consideration the Genus/Species (combo/subcombo) argument, there is no limitations that state the electrodes (singular set or pairs) are within the container that contains the nanostructured surface. Thus the combo/subcombo is still able to be restricted as the genus does not require the specifics of the species and the species has use. The requirement is still deemed proper and is therefore made FINAL. Claims 3, 7-13 and 16-17 are withdrawn from further consideration pursuant to 37 CFR 1.142(b), as being drawn to a nonelected inventions, there being no allowable generic or linking claim. Applicant timely traversed the restriction (election) requirement in the reply filed on 5/26/2026. Claims 1-2 and 14-15 are pending examination. 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 1-2, 14-15 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. Claims 1 and 15 state that the nanotextured structure is configured to facilitate either nucleation of solid in the container or nucleation of carbon dioxide. It is not clear if there are the same or different nanotextures on the surface. As per the specification, it seems that these are the same thing. In relation to the interpretation of the claim (in light of the specification), any nanotexturing of the surface is capable of both nucleation of a solid or carbon dioxide. Claim 14 recites the limitation "the gas permeable article." There is insufficient antecedent basis for this limitation in the claim. For the purpose of examination, it will be assumed that the system further includes a gas permeable article that is permeable to carbon dioxide. Claim Rejections - 35 USC § 102 (a)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claims 1, 2, 14 and 15 are rejected under 35 U.S.C. 102(a)(2) as being anticipated by US 11,413,578 of Sant et al. As to claims 1 and 15, Sant teaches of a system comprising: a fluid container (Sant, col 19 lines 11-19 and Figs. 9(a) and 9(b)); an electrode pair in the fluid container (Sant, col 19 lines 11-19 and Figs. 9(a) and 9(b)); and a nanotextured surface in the container (Sant, col 21 line 9 thru col 22 line 57 and Table 1). As stated within Sant, a flow thru cell is used that contains an electrode pair. The surface of the cathode is nanotextured. As to claim 2, this describes the material being formed within the apparatus and thus does not further delineate the system. Even with that said, Sant teaches a solid comprising a carbonate containing compound (calcium carbonate or magnesium carbonate) (Sant, col 2 lines 50-53, col 3 line 19-40 and col 23 lines 38-41). As to claim 14, Sant teaches the system includes a plurality of electroactive meshes, thus disclosing a gas permeable element as there are more than one mesh within the system (Sant, col 7 lines 65-67). Sant also teaches a gas diffuser, thus being a gas permeable element (Sant, col 6 lines 28-29). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to BRIAN W COHEN whose telephone number is (571)270-7961. The examiner can normally be reached M-F: 9 am to 5 pm 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, Curtis Mayes can be reached at 571-272-1234. 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. BRIAN W. COHEN Primary Examiner Art Unit 1759 /BRIAN W COHEN/ Primary Examiner, Art Unit 1759
Read full office action

Prosecution Timeline

Aug 16, 2023
Application Filed
Jul 28, 2026
Non-Final Rejection mailed — §102, §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12686933
METHOD FOR OPERATING AN ELECTROLYZER, CONNECTION CIRCUIT, RECTIFIER CIRCUIT, AND ELECTROLYSIS SYSTEM FOR CARRYING OUT THE METHOD
3y 9m to grant Granted Jul 21, 2026
Patent 12686937
ELECTRODEPOSITION OF MOLYBDENUM DISULFIDE DRY FILM LUBRICANT COATINGS
3y 0m to grant Granted Jul 21, 2026
Patent 12680175
HYDROGEN-OXYGEN MIXTURE GAS PRODUCING AND SUPPLYING DEVICE
3y 6m to grant Granted Jul 14, 2026
Patent 12680181
A GEOTHERMAL HYDROGEN PRODUCTION SYSTEM
2y 11m to grant Granted Jul 14, 2026
Patent 12678733
CARBON DIOXIDE RECOVERY SYSTEM
3y 3m to grant Granted Jul 14, 2026
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
54%
Grant Probability
99%
With Interview (+47.8%)
3y 3m (~3m remaining)
Median Time to Grant
Low
PTA Risk
Based on 641 resolved cases by this examiner. Grant probability derived from career allowance rate.

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