Prosecution Insights
Last updated: September 17, 2026
Application No. 18/903,459

MECHANICAL VAPOR RE-COMPRESSOR HEAT PUMP FOR SEPARATING CO2 FROM WATER VAPOR IN TEMPERATURE-VACUUM SWING ADSORPTION CYCLES

Non-Final OA §112
Filed
Oct 01, 2024
Priority
Oct 07, 2022 — provisional 63/378,764 +2 more
Examiner
JONES, CHRISTOPHER P
Art Unit
Tech Center
Assignee
Carbon Capture Inc.
OA Round
1 (Non-Final)
76%
Grant Probability
Favorable
1-2
OA Rounds
5m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 76% — above average
76%
Career Allowance Rate
1048 granted / 1377 resolved
+16.1% vs TC avg
Strong +25% interview lift
Without
With
+24.8%
Interview Lift
resolved cases with interview
Typical timeline
2y 5m
Avg Prosecution
32 currently pending
Career history
1395
Total Applications
across all art units

Statute-Specific Performance

§101
1.1%
-38.9% vs TC avg
§103
45.7%
+5.7% vs TC avg
§102
27.2%
-12.8% vs TC avg
§112
20.7%
-19.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1377 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 . 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 5 and 6 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. Regarding claim 5, “the product streams” (plural) lacks antecedent basis in the claim. Regarding claim 5, it is unclear whether or not “a plurality of reactors” includes the “reactor” of independent claims 1 and 2. Regarding claim 6, “the low-pressure steam exiting a plurality of re-boilers” lacks antecedent basis in the claim. Although claims 1 and 2 recite a “low-pressure steam”, these claims do not recite a low pressure steam exiting a plurality of re-boilers. Regarding claim 6, it is unclear whether or not “a plurality of re-boilers” includes the “re-boiler” of independent claims 1 and 2. Allowable Subject Matter Claims 1-4 are allowed. The following is an examiner’s statement of reasons for allowance: The prior art fails to disclose or make obvious the methods of independent claims 1 and 2. Regarding claim 1, the prior art fails to disclose or make obvious this method of heat recovery in a CO2 capture and separation system including passing a high-pressure plant steam through a jet-ejector in liquid contact with the low-pressure steam to reduce pressure of the high-pressure plant steam to create a stream of process steam and as a motive force to pull the low-pressure steam exiting the re-boiler through the jet-ejector into the stream of process steam to recover heat contained in the low-pressure steam into the process steam. Regarding claim 2, the prior art fails to disclose or make obvious this method of heat recovery in a CO2 capture and separation system including passing the low-pressure steam exiting the re-boiler through a vapor re-compressor wherein the low-pressure steam exiting the re-boiler is compressed to a higher pressure steam which passes into the stream of process steam to recover heat contained in the low-pressure steam into the process steam. Any comments considered necessary by applicant must be submitted no later than the payment of the issue fee and, to avoid processing delays, should preferably accompany the issue fee. Such submissions should be clearly labeled “Comments on Statement of Reasons for Allowance.” Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to CHRISTOPHER P JONES whose telephone number is (571)270-7383. The examiner can normally be reached 9AM-6PM EST M-F. 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, Jennifer Dieterle can be reached at (571)270-7872. 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. /CHRISTOPHER P JONES/Primary Examiner, Art Unit 1776
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Prosecution Timeline

Oct 01, 2024
Application Filed
Aug 24, 2026
Non-Final Rejection mailed — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12734476
GAS SEPARATION SYSTEM AND GAS SEPARATION METHOD
2y 6m to grant Granted Sep 15, 2026
Patent 12734469
COMBINED MANIFOLDING AND GAS-LIQUID SEPARATION
2y 6m to grant Granted Sep 15, 2026
Patent 12728383
ROTARY BED DEHUMIDIFICATION SYSTEM AND METHOD WITH CONTROL OF CONDENSATION IN RECIRCULATING LOOP
3y 9m to grant Granted Sep 08, 2026
Patent 12728380
ADSORBENT RETENTION PLATE ASSEMBLY FOR AN EVAPORATIVE EMISSIONS CANISTER
2y 8m to grant Granted Sep 08, 2026
Patent 12728393
GAS SEPARATION MEMBRANE
2y 10m to grant Granted Sep 08, 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
76%
Grant Probability
99%
With Interview (+24.8%)
2y 5m (~5m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1377 resolved cases by this examiner. Grant probability derived from career allowance rate.

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