Prosecution Insights
Last updated: May 29, 2026
Application No. 18/774,104

LOW-COST CONTROL FOR CARBON DIOXIDE CONDENSING UNIT

Final Rejection §112
Filed
Jul 16, 2024
Examiner
BRADFORD, JONATHAN
Art Unit
3763
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Heatcraft Refrigeration Products LLC
OA Round
2 (Final)
76%
Grant Probability
Favorable
3-4
OA Rounds
10m
Est. Remaining
97%
With Interview

Examiner Intelligence

Grants 76% — above average
76%
Career Allowance Rate
891 granted / 1172 resolved
+6.0% vs TC avg
Strong +21% interview lift
Without
With
+21.2%
Interview Lift
resolved cases with interview
Typical timeline
2y 8m
Avg Prosecution
15 currently pending
Career history
1193
Total Applications
across all art units

Statute-Specific Performance

§101
0.8%
-39.2% vs TC avg
§103
72.2%
+32.2% vs TC avg
§102
13.4%
-26.6% vs TC avg
§112
11.5%
-28.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1172 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 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. 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 1-5, 7, and 10-11 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. Regarding claim 1, the claim recites a system with a second controllable valve, wherein a “second” temperature sensor is physically attached to said valve and additionally a “second” temperature sensor is physically separated from said valve. In other words, the claim requires the second controllable valve to be operated based on both a sensor that is directly attached to an actuator of said valve and based on a sensor that is connected to the controller, wherein both sensors detect a temperature at an evaporator outlet. This appears to be a combination of embodiments which was not included in the original disclosure. Specifically, Fig. 1 of the instant application shows one embodiment with second control valve 160 controlled by a sensor 178 that is physically separated from the valve 160, and Fig. 2 shows another embodiment wherein second control valve 260 is controlled by a sensor 278 that is directly attached to the valve 260. There is no embodiment disclosed which uses a combination of both sensors, and thus the amended claim is considered to include a presentation of new matter. Regarding claims 2-5, 7, and 10-11, the claims are rejected due to dependence from claim 1. Claims 1-5, 7, and 10-11 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 1, as noted above, the claim recites a second sensor, a first sensor, and a second sensor, wherein one “second” temperature sensor is physically attached to a second controllable valve and the other “second” temperature sensor is physically separated from said valve. As written, it is unclear how the valve is to be controlled by each of the second sensors, and thus the claim is indefinite as one of ordinary skill in the art would not be readily apprised of the metes and bounds of the claim. Regarding claims 2-5, 7, and 10-11, the claims are rejected due to dependence from claim 1. Conclusion THIS ACTION IS MADE FINAL. 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 JONATHAN BRADFORD whose telephone number is (571)270-5199. The examiner can normally be reached Monday-Friday 8:00 - 4:00 ET. 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, Jerry-Daryl Fletcher can be reached at (571)270-5054. 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. /JONATHAN BRADFORD/ Primary Examiner, Art Unit 3763
Read full office action

Prosecution Timeline

Jul 16, 2024
Application Filed
Jan 28, 2026
Non-Final Rejection mailed — §112
Apr 27, 2026
Response Filed
May 07, 2026
Final Rejection mailed — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12638221
REFRIGERANT LEAKAGE MANAGEMENT SYSTEM
2y 6m to grant Granted May 26, 2026
Patent 12636936
Temperature Control Device for a Motor Vehicle
2y 3m to grant Granted May 26, 2026
Patent 12638222
HEAT PUMP DEVICE
1y 8m to grant Granted May 26, 2026
Patent 12624876
ICE MAKER WITH PRESSURE TRANSDUCERS
4y 3m to grant Granted May 12, 2026
Patent 12611913
COMPARTMENT AIR-CONDITIONING APPARATUS, REFRIGERATION APPARATUS, AND TRANSPORT CONTAINER
2y 1m to grant Granted Apr 28, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
76%
Grant Probability
97%
With Interview (+21.2%)
2y 8m (~10m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 1172 resolved cases by this examiner. Grant probability derived from career allowance rate.

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