Prosecution Insights
Last updated: August 17, 2026
Application No. 18/272,559

ORGANIC LIGHT EMITTING DEVICE

Non-Final OA §102§103§112
Filed
Jul 14, 2023
Priority
May 07, 2021 — RE 10-2021-0059360 +1 more
Examiner
ROBINSON, CHANCEITY N
Art Unit
Tech Center
Assignee
LG Chem Ltd.
OA Round
1 (Non-Final)
72%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
59%
With Interview

Examiner Intelligence

Grants 72% — above average
72%
Career Allowance Rate
778 granted / 1076 resolved
+12.3% vs TC avg
Minimal -13% lift
Without
With
+-13.2%
Interview Lift
resolved cases with interview
Typical timeline
2y 6m
Avg Prosecution
41 currently pending
Career history
1099
Total Applications
across all art units

Statute-Specific Performance

§101
0.6%
-39.4% vs TC avg
§103
37.4%
-2.6% vs TC avg
§102
20.3%
-19.7% vs TC avg
§112
24.4%
-15.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1076 resolved cases

Office Action

§102 §103 §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 . Priority Acknowledgment is made of applicant’s claim for foreign priority under 35 U.S.C. 119 (a)-(d). 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 1-9 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. Instant claim 1 recites “ an organic alloy of a compound represented by the following Chemical Formula 1 and a compound represented by following Chemical Formula 2”. However, the term “an organic alloy” as written in context with the compound of Chemical Formula 1 and/or Chemical Formula 2 is unclear and confusing. It is commonly and ordinarily to understand the meaning of an “alloy” to mean metallic substance composed of two or more elements as either a compound or a solution. See Alloy | Definition, Properties, Examples, & Facts | Britannica pg. 1 (2026). It is therefore unclear what the term “organic alloy” refers to in the present claimed invention. Consistent with the well-established axiom in patent law that a patentee or applicant is free to be his or her own lexicographer, a patentee or applicant may use terms in a manner contrary to or inconsistent with one or more of their ordinary meanings if the written description clearly redefines the terms. See, e.g., Process Control Corp. v. HydReclaim Corp., 190 F.3d 1350, 1357, 52 USPQ2d 1029, 1033 (Fed. Cir. 1999) . Appropriate correction is required. Claims 2-9 depend on claim 1; therefore, the claims are also indefinite and rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph. Appropriate correction is required. Claim Rejections - 35 USC § 102 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. 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. Claim(s) 1-8 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Suh et al. (KR 10219305 B1; citations from English translation of US 11,588,116 B2). Regarding claims 1-8, Suh et al. teach ( see abstract, claims 1-10, examples, drawings) comprising: an anode; a cathode; and a light emitting layer comprises an organic alloy of a compound represented by chemical formula 1 ( see the compound of Chemical Formula 1 of claim 1: PNG media_image1.png 243 319 media_image1.png Greyscale ) and a compound represented by chemical formula 2 ( see the compound of Chemical Formula 2 of claim 1: PNG media_image2.png 216 297 media_image2.png Greyscale ) wherein X1, X2, X3 are each independently CH or N with the proviso that at least one of X1, X2, X3 is N in chemical formula 1 and with the proviso that at least one of R5 and R6 is deuterium (see R’1 and R’2 can each independently be hydrogen or deuterium in Formula 2 in column 130, lines 14-16). The Chemical Formula 1 and Chemical Formula 2 compounds of Suh et al. meets the limitation and chemical structure of Chemical Formula 1 and Chemical Formula 2 as instantly claimed. More specifically, Suh et al. teach formula 1-5 PNG media_image3.png 283 368 media_image3.png Greyscale in columns 173-174 meets the formula PNG media_image4.png 169 155 media_image4.png Greyscale in claim 5 as well as formula 1-6 and formula 1-4 in claim 2 as instantly claimed. Claim Rejections - 35 USC § 103 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. The factual inquiries for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. Claim(s) 1-9 are rejected under 35 U.S.C. 103 as being unpatentable over Ogawa et al. (US 2024/0032322 A1). Regarding claims 1-9 , Ogawa et al. teach ( see abstract, claims, drawings and examples i.e. Example 15, Table 1 in [0127]) comprising an OLED device with an anode, a cathode and a light emitting layer comprising two host materials 2-23: PNG media_image5.png 219 291 media_image5.png Greyscale and 1-15 PNG media_image6.png 336 365 media_image6.png Greyscale .Host compound 2-23 is identical to Chemical Formula 1 as recited by instant claim 1 and 1-1 recited by instant claim 2 as well as PNG media_image7.png 157 162 media_image7.png Greyscale in claim 5. However, Host compound 1-15 [0060] falls under Chemical Formula 2 as recited by instant claims except the compounds does not comprise at least one deuterium as recited by the provisional claim language. Nonetheless, Ogawa et al. recognize that alternative host materials may include deuterium [0052-0056 & 0059] and for example, formula I-38 [0060] PNG media_image8.png 348 329 media_image8.png Greyscale , which is structurally similar to host material 1-15 but comprises deuterium atoms. Therefore, it would have been obvious to one of ordinary skilled in the art to modify Ex. 15 of Ogawa et al. to include formula 1-38 in view of formula I-15 in view of routine experimentation and it is well-known and commonly known in the art that using deuterated compounds leads to an increase in lifetime of OLED device [0019, 0042 & 0127-0128]. Claim 9 is rejected under 35 U.S.C. 103 as being unpatentable over Suh et al. (KR 10219305 B1; citations from English translation of US 11,588,116 B2) as applied to claim 1 above. Regarding claim 9, Suh et al. do not explicitly show the compound represented by Chemical Formula 2 is one selected from the following Chemical Formulas 2-1-1 to 2-1-76 as instantly claimed. Nonetheless, Suh et al. teach chemical formula 2 can be more specifically represented by formula 2-2 in column 193: PNG media_image9.png 374 345 media_image9.png Greyscale , which are similar in chemical structure as formula 2-1-27: PNG media_image10.png 217 210 media_image10.png Greyscale minus the deuterium substituents. However, Suh et al. recognize that R’1 and R’2 can each independently be hydrogen or deuterium in Formula 2 in column 130, lines 14-16. Therefore, it would have been obvious to one of ordinary skilled in the art to modify the chemical formula 2-2 of Suh et al. to substituted the hydrogen atoms for the deuterium as instantly claimed in view of routine experimentation. Prior Art The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. See Park et al. (KR 10-2022-0009351 A1; citations from English Translation of EP 4163988 A1). Park et al. ( see abstract, claims, example 17, Table 1 on page 255) teach an OLED ( organic light emitting device) comprising an anode; a cathode; and a light emitting layer between the anode and the cathode [0031-0034], wherein the light emitting layer comprising two host materials 3-14 and 2-10. Compounds 3-14 PNG media_image11.png 201 205 media_image11.png Greyscale [0205] and 2-10 PNG media_image12.png 292 220 media_image12.png Greyscale [0158-0160] are identical compounds listed for chemical formula 1 and chemical formula 2 as instantly claimed. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to CHANCEITY N ROBINSON whose telephone number is (571)270-3786. The examiner can normally be reached Monday-Friday (8:00 am-6:00 pm; IFP; PHP). 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, Anthony Zimmer can be reached at 571-270-3591. 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. /CHANCEITY N ROBINSON/Primary Examiner, Art Unit 1737
Read full office action

Prosecution Timeline

Jul 14, 2023
Application Filed
Jul 22, 2026
Non-Final Rejection mailed — §102, §103, §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
72%
Grant Probability
59%
With Interview (-13.2%)
2y 6m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1076 resolved cases by this examiner. Grant probability derived from career allowance rate.

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