Prosecution Insights
Last updated: October 01, 2026
Application No. 18/355,537

PLURALITY OF HOST MATERIALS, ORGANIC ELECTROLUMINESCENT COMPOUND, AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME

Non-Final OA §102§112
Filed
Jul 20, 2023
Priority
Aug 09, 2022 — RE 10-2022-0099113 +1 more
Examiner
DAHLBURG, ELIZABETH M
Art Unit
Tech Center
Assignee
Rohm and Haas Electronic Materials Korea Ltd.
OA Round
1 (Non-Final)
51%
Grant Probability
Moderate
1-2
OA Rounds
1y 5m
Est. Remaining
94%
With Interview

Examiner Intelligence

Grants 51% of resolved cases
51%
Career Allowance Rate
101 granted / 197 resolved
-8.7% vs TC avg
Strong +43% interview lift
Without
With
+42.6%
Interview Lift
resolved cases with interview
Typical timeline
4y 8m
Avg Prosecution
50 currently pending
Career history
241
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
53.2%
+13.2% vs TC avg
§102
12.4%
-27.6% vs TC avg
§112
27.5%
-12.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 197 resolved cases

Office Action

§102 §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 . Election/Restrictions Applicant’s election without traverse of group (B) a host material comprising a compound represented by any one of the formulas 2'-1 to 2'-4 in the reply filed on 08/21/2026 is acknowledged. Claims 11-13 read on the elected species. Claims 1-10 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected species, there being no allowable generic or linking claim. Election was made without traverse in the reply filed on 08/21/2026. Information Disclosure Statement The information disclosure statement filed 07/20/2023 fails to comply with the provisions of 37 CFR 1.97, 1.98 and MPEP § 609 because the citation KR-101612164-B appears to be incorrect, specifically, the kind code appears to be incorrect. Applicant is advised that the date of any re-submission of any item of information contained in this information disclosure statement or the submission of any missing element(s) will be the date of submission for purposes of determining compliance with the requirements based on the time of filing the statement, including all certification requirements for statements under 37 CFR 1.97(e). See MPEP § 609.05(a). It is noted that KR-101612164-B1 (kind code B1 instead of B) is cited on the PTO-892 and therefore has been considered. Claim Objections Claim 11 is objected to because of the following informalities: in claim 11 on line 19 of numbered page 56, it is suggested that "deuterium, or a naphthyl unsubstituted or substituted with deuterium or a phenyl(s); and" be changed to "deuterium, or a naphthyl unsubstituted or substituted with deuterium or in claim 11 on line 27 of numbered page 56, it is suggested that "unsubstituted or substituted with deuterium or a naphthyl(s), a biphenyl unsubstituted or" be changed to "unsubstituted or substituted with deuterium or . Appropriate correction is required. 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 11-13 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 11, the claim recites the limitation "the organic electroluminescent compound represented by any one of the following formulas 2'-1 to 2'-4" on lines 1-2. There is insufficient antecedent basis for this limitation in the claim. For purposes of examination, the claims will be interpreted such that the claim refers to "an organic electroluminescent compound represented by any one of the following formulas 2'-1 to 2'-4" consistent with the claim being an independent claim. Claims 12-13 are rejected as being dependent on indefinite claim 11. Regarding claim 11, the claims recites "with the proviso that if X8' is -L7-Ar9 and a phenyl" and also "with the proviso that if X5' is -L7-Ar9 and a naphthyl" on lines 11 and 29 of numbered page 56, respectively. It is unclear from this if the entire moiety, that is, both of L7 and Ar9 together must represent a phenyl/naphthyl to engage the proviso or if the moiety of -L7-Ar9 comprising a phenyl/naphthyl would engage the proviso. Additionally, must the phenyl/naphthyl be unsubstituted or may it be substituted? Put another way, must the entire moiety -L7-Ar9 be a phenyl/naphthyl (and may this be further substituted?) to engage the proviso or would -L7-Ar9 only comprising a phenyl/naphthyl engage the proviso? For purposes of examination, the claim will be interpreted such that, if the entire moiety of -L7-Ar9 is an unsubstituted phenyl/naphthyl group, then the proviso is engaged. Claims 12-13 are rejected as being dependent on indefinite claim 11. Claim Rejections - 35 USC § 102 The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. (a)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claims 11-13 are rejected under 35 U.S.C. 102(a)(1) and 102(a)(2) as being anticipated by Suh et al. WO-2020171530-A1 (hereinafter "Suh-WO" and see English language machine translation referred to herein as "Suh-MT"). Regarding claims 11-13, Suh discloses an organic light emitting device comprising one or more organic material layers provided between a first electrode and a second electrode, wherein at least one of the organic material layers includes a compound represented by a Formula 1 in the emission layer (page 10 of 29, lines 10-21) and discloses specific examples of the compound of Formula 1 that meet the claimed formula 2'-3 on pages 11-16 (Suh-WO) including PNG media_image1.png 154 148 media_image1.png Greyscale (Suh-WO, page 11). For example, PNG media_image1.png 154 148 media_image1.png Greyscale corresponds to the claimed compound E-43 and is a compound of the claimed formula 2'-3 wherein: T represents O; X'1 to X'4 each represent hydrogen; L'4 to L'6 each represent a single bond; Ar'7 and Ar'8 each represent an unsubstituted naphthyl group; X'5 represents -L7-Ar9 and X'6 and X'8 each represent hydrogen; and L7 represents a single bond and Ar9 represents an unsubstituted naphthyl. The device comprising the compound of Suh meet claims 11-13. Claims 11-13 are rejected under 35 U.S.C. 102(a)(1) and 102(a)(2) as being anticipated by Kim et al. WO-2021182893-A1 (see English language equivalent US-20230086039-A1 referred to herein as "Kim"). Regarding claims 11-13, Kim discloses an organic light emitting device including a light emitting layer disposed between an anode and a cathode, wherein the light emitting layer comprises a compound of a Chemical Formula 1 and a compound of a Chemical Formula 2 (¶ [0009]-[0010]) and Kim discloses examples of the compound of Chemical Formula 1 that meet the claimed formula 2'-1 in paragraph [0066] including PNG media_image2.png 270 186 media_image2.png Greyscale (page 824). For example, PNG media_image2.png 270 186 media_image2.png Greyscale is equivalent to claimed compound E-45 and meets the claimed formula 2'-1 wherein: T represents O; X'1 to X'4 each represent hydrogen; L'4 to L'6 each represent a single bond; Ar'7 represents an unsubstituted phenyl and Ar'8 represents an unsubstituted dibenzofuranyl; X'6 and X'7 each represent hydrogen and X'8 represents -L7-Ar9; and L7 represents a single bond and Ar9 represents an unsubstituted phenyl. The device comprising the compound of Kim meets claims 11-13. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure: Park et al. WO-2019245262-A1 and English language equivalent US-20210179596-A1 teaches a compound of a Chemical Formula 1 PNG media_image3.png 136 292 media_image3.png Greyscale (see paragraph [0009] of US-20210179596-A1). Contact Information Any inquiry concerning this communication or earlier communications from the examiner should be directed to Elizabeth M. Dahlburg whose telephone number is 571-272-6424. The examiner can normally be reached Monday through Thursday, 9 a.m. to 4 p.m. ET, and alternate Fridays. 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, Jennifer Boyd can be reached at 571-272-7783. 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 M. DAHLBURG/Primary Examiner, Art Unit 1786
Read full office action

Prosecution Timeline

Jul 20, 2023
Application Filed
Sep 22, 2026
Non-Final Rejection mailed — §102, §112 (current)

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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
51%
Grant Probability
94%
With Interview (+42.6%)
4y 8m (~1y 5m remaining)
Median Time to Grant
Low
PTA Risk
Based on 197 resolved cases by this examiner. Grant probability derived from career allowance rate.

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