Prosecution Insights
Last updated: April 19, 2026
Application No. 18/709,295

Ink Composition, Organic Light-Emitting Device Using Same, and Manufacturing Method therefor

Non-Final OA §102§112
Filed
May 10, 2024
Examiner
VALENCIA, ALEJANDRO
Art Unit
2853
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
LG Chem, Ltd.
OA Round
1 (Non-Final)
42%
Grant Probability
Moderate
1-2
OA Rounds
2y 11m
To Grant
48%
With Interview

Examiner Intelligence

Grants 42% of resolved cases
42%
Career Allow Rate
567 granted / 1335 resolved
-25.5% vs TC avg
Moderate +6% lift
Without
With
+5.9%
Interview Lift
resolved cases with interview
Typical timeline
2y 11m
Avg Prosecution
151 currently pending
Career history
1486
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
53.6%
+13.6% vs TC avg
§102
24.4%
-15.6% vs TC avg
§112
20.8%
-19.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1335 resolved cases

Office Action

§102 §112
DETAILED ACTION Election/Restrictions Claims 11 and 12 are withdrawn from further consideration pursuant to 37 CFR 1.142(b), as being drawn to a nonelected invention, there being no allowable generic or linking claim. Applicant timely traversed the restriction (election) requirement in the reply filed on 1/7/2026. Claim Objections Claim 7 is objected to because of the following informalities: “the second solvents” lacks antecedent basis. 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. Claim 7 is 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. The claim recites “two or more of the second solvents,” but claim 1, from which claim 7 depends, recites only a single second solvent with a single chemical formula, and thus it is unclear how “two second solvents” can exist and exactly what is meant by the term. Correction is required. 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. Claim(s) 1-10 and 13-18 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Park et al. (2022/0195228). Regarding claim 1, Park teaches a first compound with a chemical formula 1 ([0014]-[0024]), a first solvent with a chemical formula 2 ([0025], ethyl 4-methylbenzoate) and a second solvent with a third chemical formula ([0400], diisopropyl-1,1’ biphenyl). Note that these are the same exact components making up elected Example 4 of Table 1 in the immediate application, and thus it is inherent within the reference that all limitations are met. Regarding claim 2, Park teaches a first compound with a chemical formula 1, wherein the compound represented by chemical formula 1 is substituted with at least one deuterium ([0019]). Regarding claim 3, Park teaches the composition according to claim 1, wherein the first solvent has a boiling point of 180 degrees C to 270 degrees C (Note that this is the case for ethyl 4-methylbenzoate). Regarding claim 4, Park teaches the composition according to claim 1, wherein the second solvent has a boiling point of 240 degrees C to 350 degrees C (Note that this is the case for diisopropyl-1,1’ biphenyl). Regarding claim 5, Park teaches the composition according to claim 1, note that the three chemical formulas are the same, and thus all other conditions are being taken to be met. Regarding claim 6, Park teaches the composition according to claim 1, note that the three chemical formulas are the same, and thus all other conditions are being taken to be met. Regarding claim 7, Park teaches the composition according to claim 1, which comprises two or more of the second solvents ([0400]). Regarding claim 8, Park teaches the composition according to claim 1, wherein the first solvent and the second solvent are comprised at a weight ratio of 95:5 to 50:50 ([0400]). Regarding claim 9, Park teaches the composition according to claim 1, further comprising an addition compound (see all of disclosed of Park). Regarding claim 13, Park teaches the composition according to claim 1, wherein the compound represented by chemical formula 1 is deuterated by at least 10% ([0015]-[0020]). Regarding claim 14, Park teaches the composition according to claim 1, note that the three chemical formulas are the same, and thus all other conditions are being taken to be met. Regarding claim 15, Park teaches the composition according to claim 1, note that the three chemical formulas are the same, and thus all other conditions are being taken to be met. Regarding claim 16, Park teaches the composition according to claim 1, note that the three chemical formulas are the same, and thus all other conditions are being taken to be met. Regarding claim 17, Park teaches the composition according to claim 1, note that the ethyl 4-methylbenzoate meets the limitation. Regarding claim 18, Park teaches the composition according to claim 1, note that diisopropyl-1,1’ biphenyl meets the limitation. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to ALEJANDRO VALENCIA whose telephone number is (571)270-5473. The examiner can normally be reached M-F. 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, DOUGLAS X. RODRIGUEZ can be reached at 571-431-0716. 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. /ALEJANDRO VALENCIA/Primary Examiner, Art Unit 2853
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Prosecution Timeline

May 10, 2024
Application Filed
Feb 11, 2026
Non-Final Rejection — §102, §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12600127
INKJET ASSEMBLY, INKJET PRINTING APPARATUS AND INKJET PRINTING METHOD FOR USE IN PREPARATION OF DISPLAY COMPONENT
2y 5m to grant Granted Apr 14, 2026
Patent 12583238
PAPER SUPPLY CONTROL DEVICE
2y 5m to grant Granted Mar 24, 2026
Patent 12576644
RECORDING DEVICE AND METHOD OF CONTROLLING RECORDING DEVICE
2y 5m to grant Granted Mar 17, 2026
Patent 12570101
RECORDING DEVICE
2y 5m to grant Granted Mar 10, 2026
Patent 12558904
DROP-ON-DEMAND INK DELIVERY SYSTEMS AND METHODS WITH TANKLESS RECIRCULATION FOR CARD PROCESSING SYSTEMS
2y 5m to grant Granted Feb 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
42%
Grant Probability
48%
With Interview (+5.9%)
2y 11m
Median Time to Grant
Low
PTA Risk
Based on 1335 resolved cases by this examiner. Grant probability derived from career allow rate.

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