DETAILED ACTION The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA. Claims 1-20 as filed on 01/05/2023 are pending. 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 appl icant regards as his invention. Claim 2 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. Claim 2 recites “the interlayer further comprises : the at least one organometallic compound”. Claim 1, upon which claim 2 depends, already recites “at least one organometallic compound represented by Formula 1” as part of the recited device structure. The use of the phrase “further comprises” in the context of reciting the organometallic compound is unclear with respect to whether the compound is the same as required by the parent claim or is additional. Clarification and/or correction are required. Allowable Subject Matter Claims 1 and 3-20 are allowed. The closest prior art is considered to be Li et al. (US 2018/0053904), which teaches platinum and palladium complexes with ligands having polyaryl rings (see abstract) for use in light emitting devices. The reference fails to teach or to render obvious the very specific ligand structure shown in instant Formula 1 including the six-membered nitrogen ring and CY1 to CY5 groups as recited in the instant claims. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to FILLIN "Examiner name" \* MERGEFORMAT Dawn Garrett whose telephone number is FILLIN "Phone number" \* MERGEFORMAT (571)272-1523 . The examiner can normally be reached FILLIN "Work Schedule?" \* MERGEFORMAT Monday through Thursday (Eastern Time) . If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, FILLIN "SPE Name?" \* MERGEFORMAT Jennifer Boyd can be reached at FILLIN "SPE Phone?" \* MERGEFORMAT 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. /DAWN L GARRETT/ Primary Examiner, Art Unit 1786