Prosecution Insights
Last updated: October 25, 2026
Application No. 18/947,931

LIQUID SUBMERGED, HORIZONTAL COMPUTER SERVER RACK AND SYSTEMS AND METHOD OF COOLING SUCH A SERVER RACK

Final Rejection §112
Filed
Nov 14, 2024
Priority
Aug 11, 2008 — provisional 61/188,589 +7 more
Examiner
ZERPHEY, CHRISTOPHER R
Art Unit
3799
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Green Revolution Cooling Inc.
OA Round
2 (Final)
49%
Grant Probability
Moderate
3-4
OA Rounds
1y 2m
Est. Remaining
68%
With Interview

Examiner Intelligence

Grants 49% of resolved cases
49%
Career Allowance Rate
383 granted / 785 resolved
-21.2% vs TC avg
Strong +19% interview lift
Without
With
+19.2%
Interview Lift
resolved cases with interview
Typical timeline
3y 2m
Avg Prosecution
46 currently pending
Career history
843
Total Applications
across all art units

Statute-Specific Performance

§101
0.9%
-39.1% vs TC avg
§103
54.4%
+14.4% vs TC avg
§102
14.6%
-25.4% vs TC avg
§112
25.1%
-14.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 785 resolved cases

Office Action

§112
Notice of Pre-AIA or AIA Status The present application is being examined under the pre-AIA first to invent provisions. The claims received 9/22/2026 are entered. 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 23-39 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. Claim 23 recites “the second heat exchanger” at line 5 and “the second liquid coolant” at line 6. Both lack antecedent basis, i.e. they should be introduced with the indefinite article –a--. Similarly “the liquid coolant” (line 7) lacks clear antecedent basis, i.e. the recitation should include which of the first or second liquid coolants is intended to be referenced. Claim 25 recites “a second liquid coolant” which lacks antecedent basis, i.e. the second liquid coolant was previously introduced thus the definite article –the—should be used. Claim 28 recites “the heat exchanger” which lacks clear antecedent basis, i.e. the recitation should include which of the first or second heat exchangers is intended to be referenced. Claim 34 recites “a second heat exchanger” which has improper antecedent basis, i.e. the second heat exchanger was previously introduced thus the definite article –the—should be used. Claims depending from a rejected claim are rejected due to their dependency. Double Patenting Terminal disclaimers have been received and approved in view of: US 10,123,463 US 12,150,282 US 12,513,853 US Application 19/429,030 Allowable Subject Matter Claims 23-39 would be allowable if rewritten or amended to overcome the rejection(s) under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), 2nd paragraph, set forth in this Office action. The reasons for allowance are similar to the reasons found in US 10,123,463; 12150,282; 12,513,853; and 12,526,954. Response to Arguments Applicant's arguments filed 9/22/2026 have been fully considered but they are not persuasive. Applicant asserts that adding “first” at line 5 corrects the antecedent basis problem. This change alone does not correct the antecedent basis issues previously raised. A more thorough explanation has been provided above. The examiner invites applicant to request a telephone interview if further explanation is required. 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 CHRISTOPHER R ZERPHEY whose telephone number is (571)272-5965. The examiner can normally be reached M-F 7:00-4:00 PM. 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, Jianying Atkisson can be reached at 5712707740. 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 R ZERPHEY/Primary Examiner, Art Unit 3799
Read full office action

Prosecution Timeline

Nov 14, 2024
Application Filed
Oct 31, 2025
Response after Non-Final Action
Jun 23, 2026
Non-Final Rejection mailed — §112
Sep 22, 2026
Response Filed
Oct 08, 2026
Final Rejection mailed — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12768546
DEVICE FOR SECURING WINDOW AIR CONDITIONERS
2y 8m to grant Granted Oct 20, 2026
Patent 12760951
ICE-MAKING EVAPORATOR AND METHOD FOR MANUFACTURING ICE-MAKING EVAPORATOR
1y 10m to grant Granted Oct 13, 2026
Patent 12760942
PACKAGED MULTI-FUNCTIONAL AIR SOURCE HEAT PUMP INTEGRATED WITH A HYDRONIC LOOP FOR COOLING/HEATING ENERGY STORAGE
1y 4m to grant Granted Oct 13, 2026
Patent 12753966
REFRIGERATOR
3y 3m to grant Granted Oct 06, 2026
Patent 12747871
INDOOR UNIT OF AIR CONDITIONER
2y 0m to grant Granted Sep 29, 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
49%
Grant Probability
68%
With Interview (+19.2%)
3y 2m (~1y 2m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 785 resolved cases by this examiner. Grant probability derived from career allowance rate.

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