Prosecution Insights
Last updated: April 19, 2026
Application No. 18/260,046

HUMIDIFIER FOR FUEL CELL

Non-Final OA §112
Filed
Jun 30, 2023
Examiner
BERRESFORD, JORDAN ELIZABETH
Art Unit
1727
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Kolon Industries Inc.
OA Round
1 (Non-Final)
70%
Grant Probability
Favorable
1-2
OA Rounds
3y 0m
To Grant
78%
With Interview

Examiner Intelligence

Grants 70% — above average
70%
Career Allow Rate
116 granted / 166 resolved
+4.9% vs TC avg
Moderate +8% lift
Without
With
+8.5%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
35 currently pending
Career history
201
Total Applications
across all art units

Statute-Specific Performance

§103
50.6%
+10.6% vs TC avg
§102
23.2%
-16.8% vs TC avg
§112
25.1%
-14.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 166 resolved cases

Office Action

§112
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 statements (IDSs) submitted 06/30/2023 and 07/172024 were received and have been considered by the examiner. Drawings Figure 1 should be designated by a legend such as --Prior Art-- because only that which is old is illustrated. See MPEP § 608.02(g). Corrected drawings in compliance with 37 CFR 1.121(d) are required in reply to the Office action to avoid abandonment of the application. The replacement sheet(s) should be labeled “Replacement Sheet” in the page header (as per 37 CFR 1.84(c)) so as not to obstruct any portion of the drawing figures. If the changes are not accepted by the examiner, the applicant will be notified and informed of any required corrective action in the next Office action. The objection to the drawings will not be held in abeyance. 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 1-11 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. Claim 1 recites the limitation "the other end" in line 8. There is insufficient antecedent basis for this limitation in the claim. Claim 3 recites the limitation "the other end" in lines 3-4. There is insufficient antecedent basis for this limitation in the claim. Claim 6 recites the limitation "the other end" in lines 3-4. There is insufficient antecedent basis for this limitation in the claim. Claims 2, 4-5, and 7-11 are rejected due to their dependency on claim 1. Allowable Subject Matter Claims 1-11 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 following is a statement of reasons for the indication of allowable subject matter: With respect to claim 1, the closest pieces of prior art Bauer et al. (U.S. 20200161678), An et al. (KR 20190035002 A, Espacenet translation provided for reference), and Oh et al. (WO 2016208878 A1, Espacenet translation provided for reference) all disclose humidifiers for use within fuel cells. However, none of the above cited pieces of prior art disclose the use of packing members used within sub-cases to airtightly couple through mechanical means to the ends of humidifying modules, wherein the packing members comprise a first packing body and a first projecting member configured to be inserted into a fist insertion groove of the sub-case. According to applicant’s specification, it is possible to increase the distance that dry gas and wet gas must move so as to leak through the airtight structure implemented as the result of the first packing member being inserted into the first sub-case, whereby it is possible to increase force capable of preventing leakage of the dry gas and the wet gas. Also, in the humidifier for fuel cells according to the present disclosure, it is possible to prevent leakage of both dry gas and wet gas through the airtight structure implemented as the result of the first packing member being inserted into the first sub-case ([0060]). There is no obvious modification to the humidifiers of the prior art to arrive at the claimed invention that yields the results of the packing member, and no prior art was found that can modify the prior art to arrive at the claimed invention. Therefore, claim 1 contains allowable subject matter. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to JORDAN E BERRESFORD whose telephone number is (571)272-0641. The examiner can normally be reached M-F 8:00 am - 5:00 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, Barbara Gilliam can be reached at (572)272-1330. 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. /J.E.B./Examiner, Art Unit 1727 /Maria Laios/Primary Examiner, Art Unit 1727
Read full office action

Prosecution Timeline

Jun 30, 2023
Application Filed
Feb 09, 2026
Non-Final Rejection — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12603372
BATTERY RACK, ENERGY STORAGE SYSTEM, AND POWER GENERATION SYSTEM
2y 5m to grant Granted Apr 14, 2026
Patent 12603378
BATTERY MODULE, BATTERY PACK, AND VEHICLE INCLUDING THE SAME
2y 5m to grant Granted Apr 14, 2026
Patent 12592446
BATTERY PACK INCLUDING HEAT INSULATING SHEET AND FRICTION SHEET
2y 5m to grant Granted Mar 31, 2026
Patent 12589662
BATTERY MODULE COMPRISING TERMINAL BLOCK WITH SHIELDING PORTION
2y 5m to grant Granted Mar 31, 2026
Patent 12586856
BATTERY CASE AND BATTERY DEVICE
2y 5m to grant Granted Mar 24, 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
70%
Grant Probability
78%
With Interview (+8.5%)
3y 0m
Median Time to Grant
Low
PTA Risk
Based on 166 resolved cases by this examiner. Grant probability derived from career allow rate.

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