Office Action Predictor
Last updated: April 15, 2026
Application No. 18/321,056

MEMBRANE PURGE SYSTEM

Final Rejection §102
Filed
May 22, 2023
Examiner
MARTIN, ELIZABETH J
Art Unit
3763
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Carrier Corporation
OA Round
2 (Final)
78%
Grant Probability
Favorable
3-4
OA Rounds
2y 6m
To Grant
99%
With Interview

Examiner Intelligence

Grants 78% — above average
78%
Career Allow Rate
729 granted / 930 resolved
+8.4% vs TC avg
Strong +26% interview lift
Without
With
+26.5%
Interview Lift
resolved cases with interview
Typical timeline
2y 6m
Avg Prosecution
28 currently pending
Career history
958
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
47.8%
+7.8% vs TC avg
§102
21.6%
-18.4% vs TC avg
§112
27.3%
-12.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 930 resolved cases

Office Action

§102
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 The information disclosure statement (IDS) submitted on 8/28/2025 was filed after the mailing date of the application on 5/22/2023. The submission is in compliance with the provisions of 37 CFR 1.97. Accordingly, the information disclosure statement is being considered by the examiner. Claim Rejections - 35 USC § 102 The text of those sections of Title 35, U.S. Code not included in this action can be found in a prior Office action. The text of those sections of Title 35, U.S. Code not included in this action can be found in a prior Office action. Claim(s) 1-20 is/are rejected under 35 U.S.C. 102(a)(2) as being anticipated by Lee et al (5062273). Regarding claim 1, Lee teaches a refrigeration system (figs. 1-2) comprising: a vapor compression loop (22, 24, 265, 18); a purge system (38, 40, 44, 42, 48) in communication with the vapor compression loop (42), the purge system comprising: a separator (36) configured for separating contaminants from a purge gas (50) provided from the vapor compression loop to the separator (fig. 1); and a movement mechanism (28) operable to increase a pressure of the purge gas (Col. 5, lines 43-58), wherein the pressure of the purge gas drives the purge gas through the separator (Col. 5, lines 43-58) the movement mechanism being arranged upstream from the separator relative to a flow of the purse gas (28 arranged relative to 36). Regarding claim 2, Lee teaches the pressure of the purge gas downstream from the movement mechanism is greater than 40 psia (100 psia, col. 6-7, lines 68-1). Regarding claim 3, Lee teaches the pressure of the purge gas downstream from the movement mechanism is greater than 60 psia (100 psia, col. 6-7, lines 68-1). Regarding claim 4, Lee teaches the movement mechanism is a compressor (fig. 1). Regarding claim 5, Lee teaches a phase separator (32) fluidly coupled to the movement mechanism and to the separator (fig. 1). Regarding claim 6, Lee teaches the phase separator includes a first outlet (44) in fluid communication with the separator and a second outlet (42) in fluid communication with the vapor compression system. Regarding claim 7, Lee teaches liquid refrigerant within the phase separator is returned to the vapor compression system via the second outlet (42 to 16). Regarding claim 8, Lee teaches the separator further comprises a separating material (semipermeable membrane, Col. 5, lines 20-32) operable to separate the contaminants from the purge gas provided from the vapor compression system (Col. 5, lines 20-32). Regarding claim 9, Lee teaches the separating material further comprises at least one membrane (semipermeable membrane, Col. 5, lines 20-32). Regarding claim 10, Lee teaches the at least one membrane includes a porous material having pores (porous, Col. 6, lines 38-44) sized to allow the contaminants to pass through the at least one membrane (Col. 6, lines 14-45) and restrict a flow of a refrigerant through the at least one membrane (Col. 6, lines 14-45). Regarding claim 11, Lee teaches wherein a first side of the at least one membrane is fluidly coupled to the first outlet of the phase separator (44, 46). Regarding claim 12, Lee teaches the separating material includes a sorbent material (Col. 6, lines 14-45). Regarding claim 13, Lee teaches the purge system further comprises a heat exchanger (30) arranged downstream from the movement mechanism and upstream from the phase separator. Regarding claim 14, Lee teaches the heat exchanger is a condenser (30) operable to cool the purge gas therein. Regarding claims 15-20, it is noted that although the preamble of claims is directed towards a method, the structure of the combined teachings disclose all the structure being provided in the method steps, thus the method is also anticipated by the combined teachings. If a prior art device, in its normal and usual operation, would necessarily perform the method claimed, then the method claimed will be considered to be anticipated or rendered obvious by the prior art device. When the prior art device is the same as a device described in the specification for carrying out the claimed method, it can be assumed the device will inherently or obviously perform the claimed process. Thus, the method, as claimed, would necessarily result from the normal operation of the apparatus. See MPEP 2112.02. 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 ELIZABETH J MARTIN whose telephone number is (571)270-3840. The examiner can normally be reached 8:30-3:00 CT pm 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, 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. /ELIZABETH J MARTIN/Primary Examiner, Art Unit 3763
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Prosecution Timeline

May 22, 2023
Application Filed
May 22, 2025
Non-Final Rejection — §102
Aug 28, 2025
Response Filed
Sep 11, 2025
Final Rejection — §102
Apr 03, 2026
Response after Non-Final Action

Precedent Cases

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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
78%
Grant Probability
99%
With Interview (+26.5%)
2y 6m
Median Time to Grant
Moderate
PTA Risk
Based on 930 resolved cases by this examiner. Grant probability derived from career allow rate.

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