Prosecution Insights
Last updated: July 17, 2026
Application No. 18/825,427

DEHUMIDIFIER

Non-Final OA §112
Filed
Sep 05, 2024
Priority
Feb 07, 2024 — RE 10-2024-0018781
Examiner
DIAZ, MIGUEL ANGEL
Art Unit
3763
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
LG Electronics Inc.
OA Round
1 (Non-Final)
80%
Grant Probability
Favorable
1-2
OA Rounds
8m
Est. Remaining
91%
With Interview

Examiner Intelligence

Grants 80% — above average
80%
Career Allowance Rate
391 granted / 491 resolved
+9.6% vs TC avg
Moderate +12% lift
Without
With
+11.8%
Interview Lift
resolved cases with interview
Typical timeline
2y 7m
Avg Prosecution
22 currently pending
Career history
509
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
66.8%
+26.8% vs TC avg
§102
9.1%
-30.9% vs TC avg
§112
22.8%
-17.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 491 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 . Information Disclosure Statement The submitted information disclosure statement(s) (IDS) is/are in compliance with the provisions of 37 CFR 1.97. Accordingly, the information disclosure statement(s) is/are being considered by the examiner. Claim Objections The following claims are objected to because of informalities, wherein appropriate correction is required: In claim 1: The recitation of “the outside” (in line 6) should be amended to –an outside—, for antecedent basis and to avoid ambiguities. In claim 15: The recitation of “comprises” (in line 1) should be amended to –comprising—, for grammatical purposes. Claim Interpretation The following is a quotation of 35 U.S.C. 112(f): (f) Element in Claim for a Combination. – An element in a claim for a combination may be expressed as a means or step for performing a specified function without the recital of structure, material, or acts in support thereof, and such claim shall be construed to cover the corresponding structure, material, or acts described in the specification and equivalents thereof. The claims in this application are given their broadest reasonable interpretation using the plain meaning of the claim language in light of the specification as it would be understood by one of ordinary skill in the art. The broadest reasonable interpretation of a claim element (also commonly referred to as a claim limitation) is limited by the description in the specification when 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, is invoked. As explained in MPEP § 2181, subsection I, claim limitations that meet the following three-prong test will be interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph: (A) the claim limitation uses the term “means” or “step” or a term used as a substitute for “means” that is a generic placeholder (also called a nonce term or a non-structural term having no specific structural meaning) for performing the claimed function; (B) the term “means” or “step” or the generic placeholder is modified by functional language, typically, but not always linked by the transition word “for” (e.g., “means for”) or another linking word or phrase, such as “configured to” or “so that”; and (C) the term “means” or “step” or the generic placeholder is not modified by sufficient structure, material, or acts for performing the claimed function. Use of the word “means” (or “step”) in a claim with functional language creates a rebuttable presumption that the claim limitation is to be treated in accordance with 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph. The presumption that the claim limitation is interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, is rebutted when the claim limitation recites sufficient structure, material, or acts to entirely perform the recited function. Absence of the word “means” (or “step”) in a claim creates a rebuttable presumption that the claim limitation is not to be treated in accordance with 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph. The presumption that the claim limitation is not interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, is rebutted when the claim limitation recites function without reciting sufficient structure, material or acts to entirely perform the recited function. Claim limitations in this application that use the word “means” (or “step”) are being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, except as otherwise indicated in an Office action. Conversely, claim limitations in this application that do not use the word “means” (or “step”) are not being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, except as otherwise indicated in an Office action. This application includes one or more claim limitations that do not use the word “means,” but are nonetheless being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, because the claim limitation(s) uses a generic placeholder that is coupled with functional language without reciting sufficient structure to perform the recited function and the generic placeholder is not preceded by a structural modifier. Such claim limitation(s) is/are: “a dehumidification member configured to separate moisture […]” (claims 1 and 15). “a first part configured to generate an air flow […]” (claim 1) The aforementioned limitation(s) meet the three prong test, as follows: The claims use generic placeholders (i.e., “member” and “part”) with no specific structural meaning. The generic placeholders are modified by functional language (i.e., “configured to”). The claimed functions do not include sufficient structures or materials for performing the functions. Because these claim limitations are being interpreted under 35 U.S.C. 112(f), they are being interpreted to cover the corresponding structure described in the specification as performing the claimed function, and equivalents thereof. A review of the specification shows that the following appear to be the corresponding structures for the aforementioned 112(f) limitation(s): The “dehumidification member” appears to at least be described as including polymer membrane fibers (321) having a hollow fiber structure (¶ 254). The membrane fibers may be configured to have a diameter of about 400 to 420 μm and may be provided in multiple strands (¶ 255-256). The dehumidification member may further comprise a packing member (323) surrounding the membrane fibers to fix and maintain the shape of the fibers (¶ 257). The “first part” appears to be associated with the fan that generates air flow (¶¶ 85 and 301). If applicant does not intend to have this/these limitation(s) interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, applicant may: (1) amend the claim limitation(s) to avoid it/them being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph (e.g., by reciting sufficient structure to perform the claimed function); or (2) present a sufficient showing that the claim limitation(s) recite(s) sufficient structure to perform the claimed function so as to avoid it/them being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph. 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. Claims 10-14 and 19-20 are rejected under 35 U.S.C. 112(b) as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor regards as the invention. Claim 10 contains the following issues: The claim recites “a third partition wall” without a corresponding “second partition wall”. It should be noted that claim 1 (from which claim 10 depends) only recites a “partition wall”. Rather, claim 9 recites a “second partition wall”. As currently recited, it is unclear what number of partition walls are required for anticipation or infringement of claim 10. For examination purposes, the recitation(s) of “third partition wall” will be construed as –additional partition wall—. Claim 13 contains the following issues: The claim recites “a fourth partition wall” without a corresponding “second partition wall” or “third partition wall”. It should be noted that claim 1 (from which claim 13 depends) only recites a “partition wall”. Rather, claim 9 recites a “second partition wall” and claim 10 recites a “third partition wall”. As currently recited, it is unclear what number of partition walls are required for anticipation or infringement of claim 13. For examination purposes, the recitation(s) of “fourth partition wall” will be construed as –additional partition wall—. Claim 19 contains the following issues: The claim recites “a third partition wall” without a corresponding “second partition wall”. It should be noted that claim 15 (from which claim 19 depends) only recites a “partition wall”. As currently recited, it is unclear what number of partition walls are required for anticipation or infringement of claim 19. For examination purposes, the recitation(s) of “third partition wall” will be construed as –additional partition wall—. Claim 20 contains the following issues: The claim recites “a fourth partition wall” without a corresponding “second partition wall” or “third partition wall”. It should be noted that claim 15 (from which claim 20 depends) only recites a “partition wall”. As currently recited, it is unclear what number of partition walls are required for anticipation or infringement of claim 20. For examination purposes, the recitation(s) of “fourth partition wall” will be construed as –additional partition wall—. Any remaining claims are rejected at least by virtue of their dependency. Double Patenting The nonstatutory double patenting rejection is based on a judicially created doctrine grounded in public policy (a policy reflected in the statute) so as to prevent the unjustified or improper timewise extension of the “right to exclude” granted by a patent and to prevent possible harassment by multiple assignees. A nonstatutory double patenting rejection is appropriate where the conflicting claims are not identical, but at least one examined application claim is not patentably distinct from the reference claim(s) because the examined application claim is either anticipated by, or would have been obvious over, the reference claim(s). See, e.g., In re Berg, 140 F.3d 1428, 46 USPQ2d 1226 (Fed. Cir. 1998); In re Goodman, 11 F.3d 1046, 29 USPQ2d 2010 (Fed. Cir. 1993); In re Longi, 759 F.2d 887, 225 USPQ 645 (Fed. Cir. 1985); In re Van Ornum, 686 F.2d 937, 214 USPQ 761 (CCPA 1982); In re Vogel, 422 F.2d 438, 164 USPQ 619 (CCPA 1970); In re Thorington, 418 F.2d 528, 163 USPQ 644 (CCPA 1969). A timely filed terminal disclaimer in compliance with 37 CFR 1.321(c) or 1.321(d) may be used to overcome an actual or provisional rejection based on nonstatutory double patenting provided the reference application or patent either is shown to be commonly owned with the examined application, or claims an invention made as a result of activities undertaken within the scope of a joint research agreement. See MPEP § 717.02 for applications subject to examination under the first inventor to file provisions of the AIA as explained in MPEP § 2159. See MPEP § 2146 et seq. for applications not subject to examination under the first inventor to file provisions of the AIA . A terminal disclaimer must be signed in compliance with 37 CFR 1.321(b). The filing of a terminal disclaimer by itself is not a complete reply to a nonstatutory double patenting (NSDP) rejection. A complete reply requires that the terminal disclaimer be accompanied by a reply requesting reconsideration of the prior Office action. Even where the NSDP rejection is provisional the reply must be complete. See MPEP § 804, subsection I.B.1. For a reply to a non-final Office action, see 37 CFR 1.111(a). For a reply to final Office action, see 37 CFR 1.113(c). A request for reconsideration while not provided for in 37 CFR 1.113(c) may be filed after final for consideration. See MPEP §§ 706.07(e) and 714.13. The USPTO Internet website contains terminal disclaimer forms which may be used. Please visit www.uspto.gov/patent/patents-forms. The actual filing date of the application in which the form is filed determines what form (e.g., PTO/SB/25, PTO/SB/26, PTO/AIA /25, or PTO/AIA /26) should be used. A web-based eTerminal Disclaimer may be filled out completely online using web-screens. An eTerminal Disclaimer that meets all requirements is auto-processed and approved immediately upon submission. For more information about eTerminal Disclaimers, refer to www.uspto.gov/patents/apply/applying-online/eterminal-disclaimer. Claims 1-5 and 7-17 are provisionally rejected on the ground of nonstatutory double patenting as being unpatentable over claims (see Table 1 below) of three copending Applications, namely App. No. 18/824,119, App. No. 18/828,742, and App. No. 18/826,325 (reference applications). Although the claims at issue are not identical, they are not patentably distinct from each other because the reference application claims anticipate the subject matter of the instant claims (i.e., the reference claims are deemed to cover the subject matter of the instant claims). This is a provisional nonstatutory double patenting rejection because the patentably indistinct claims have not in fact been patented. The following table compares the claims of the instant application to the copending claims: Instant Case:18/825,427 Copending App.:18/824,119(US 20250249398) Copending App.:18/828,742(US 20250251156) Copending App.:18/826,325(US 20250251146) 1 15, 18 16 1 2 16 1, 16 1 3 - 5 19 4 - 6 - 5 - 6 - 6 - - - 7 - 5 - 8 - 17 - 9 - 1 6 10 - - 7 11 - 17 - 12 - 17 - 13 - 12 9, 10 14 - 12 12 15 15 18 - 16 - 18 - 17 - 18 - 18 - - - 19 - - - 20 - - - Table 1: Instant Application Claims and Copending Application Claims Allowable Subject Matter Claims 1-9 and 15-18 appear allowable over the prior art. Claims 10-14 and 19-20 would be allowable if rewritten or amended to overcome the rejection(s) under 35 U.S.C. 112(b) set forth in this Office action. As allowable subject matter has been indicated, applicant's reply must either comply with all formal requirements or specifically traverse each requirement not complied with. See 37 CFR 1.111(b) and MPEP § 707.07(a). The prior art, when taken as a whole, neither anticipates nor renders prima facie obvious the claimed invention as recited in at least claim 1. The closest prior art references of record appear to be Yoon (US 20190390862 A1), herein Yoon ‘862 and Yoon et al. (KR 20180065571 A), herein Yoon’571. At best, Yoon ‘862 appears to suggest a dehumidifier (10) with a main body (100), a fan (300), a heat exchanger (200), and a drain tank (700). However, Yoon ‘862 fails to disclose a dehumidification module that includes a dehumidification member, as interpreted under § 112(f), or a vacuum pump. On the other hand, Yoon ‘571 appears to suggest a dehumidification module (100) that has similar hollow polymer membranes (120), but does not disclose any of the other claimed features. Absent impermissible hindsight, it is deemed one of ordinary skill in the art would have not modified the prior art to arrive at the claimed invention based on the current preponderance of the evidence. It should also be noted that the intended purpose and operating principles of Yoon ‘862 and Yoon ‘571 require the specific arrangement of dehumidification components as disclosed and described therein. One of ordinary skill in the art would recognize that any modifications to the prior art to arrive at the claimed invention would be based on improper hindsight, and would render it inoperable for its intended purpose. Assuming arguendo, rearranging and/or replacing the heat exchangers, or adding additional membranes, would change the principles of operation thereof, since it would require completely redesigning the structure of the dehumidifier, most likely resulting in unexpected and/or unintended results, which is evidence against a prima facie case of obviousness. Thus, a preponderance of evidence supports the allowability of the claims over the prior art. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to MIGUEL A DIAZ whose telephone number is (313)446-6587. The examiner can normally be reached Monday - Friday: 9:00 AM - 5:00 PM Eastern Time. 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 C. Atkisson can be reached at (571) 270-7740. 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. /MIGUEL A DIAZ/Primary Examiner, Art Unit 3763
Read full office action

Prosecution Timeline

Sep 05, 2024
Application Filed
Jun 03, 2026
Non-Final Rejection mailed — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12674606
GAS-LIQUID SEPARATOR AND AIR CONDITIONING SYSTEM OF VEHICLE
2y 3m to grant Granted Jul 07, 2026
Patent 12642283
ICE CREAM FREEZER
2y 11m to grant Granted Jun 02, 2026
Patent 12638218
REFRIGERATION DEVICE AND COMPRESSION DEVICE
3y 1m to grant Granted May 26, 2026
Patent 12631372
LIQUID HYDROGEN VAPORIZATION SYSTEM AND LIQUID HYDROGEN VAPORIZATION METHOD
2y 3m to grant Granted May 19, 2026
Patent 12631379
SERVICEABLE ACCUMULATOR WITH INTEGRATED PLATE FIN HEAT EXCHANGER
2y 6m to grant Granted May 19, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.
Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

1-2
Expected OA Rounds
80%
Grant Probability
91%
With Interview (+11.8%)
2y 7m (~8m remaining)
Median Time to Grant
Low
PTA Risk
Based on 491 resolved cases by this examiner. Grant probability derived from career allowance rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month