Prosecution Insights
Last updated: July 17, 2026
Application No. 17/979,252

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

Final Rejection §102
Filed
Nov 02, 2022
Priority
Nov 05, 2021 — RE 10-2021-0151027 +2 more
Examiner
CLARK, GREGORY D
Art Unit
1786
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Rohm and Haas Electronic Materials Korea Ltd.
OA Round
2 (Final)
85%
Grant Probability
Favorable
3-4
OA Rounds
0m
Est. Remaining
93%
With Interview

Examiner Intelligence

Grants 85% — above average
85%
Career Allowance Rate
1032 granted / 1219 resolved
+19.7% vs TC avg
Moderate +8% lift
Without
With
+8.2%
Interview Lift
resolved cases with interview
Typical timeline
3y 1m
Avg Prosecution
54 currently pending
Career history
1261
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
77.4%
+37.4% vs TC avg
§102
16.2%
-23.8% vs TC avg
§112
3.6%
-36.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1219 resolved cases

Office Action

§102
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 . 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) 1-2, 6 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Kaisha (WO 03/088116 A1). Regarding Claims 1-2, 6, Kaisha teaches a material represented by Compd 4 (page 11): PNG media_image1.png 244 460 media_image1.png Greyscale Compd 4 reads on applicants Formula 1 and 1-1 and wherein R1 = substituted heteroaryl; R2 = ethyl (per claims 1-2) Allowable Subject Matter I Claims 3-5 and 7 are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. The prior art fails to show: -HAr (per claims 4-5) Compounds (per claim 7) Allowable Subject Matter II The following is a statement of reasons for the indication of allowable subject matter as applicant claims a plurality of host represented by Formula 1 and Formula 2. A search of the prior art fails to show the limitations of independent claim 8. The closest prior art as exemplified by: Kaisha teaches a material represented Compd 4 which reads on applicants’ Formula 1, as discussed above. Kaisha fails to teach 3a as a host in a combination reading on applicants’ Formula 1 and Formula 3. Cho (US 2020/0028089 A1) teaches an organic electroluminescent device according to the present disclosure comprises an anode; a cathode; and at least one organic layer between the anode and the cathode. The organic layer comprises a light-emitting layer comprising a host and a phosphorescent dopant. The host comprises a plurality of host compounds, at least a first host compound of the plurality of host compounds represented by Formula 1 or Formula 2 (first host) and the second host (Formula 3) (paragraph 50). Cho’s Formula 1 and Formula 2 is shown below: .. PNG media_image2.png 377 966 media_image2.png Greyscale PNG media_image3.png 780 777 media_image3.png Greyscale The office notes that Cho’s Formula 2 shows applicants’ A as a naphthyl group and R2 as an amino group but lacks the required selenium atom. Cho’s Formula 2 reads on applicants’ Formula 2 wherein X1 and Y1 can be NR, =N-, O or S; the amino group shows options points of attachment. Cho fails to teach the combination of applicants’ Formula 1 and 2 as required by independent claim 8. Kaisha and Cho fail to teach, suggest or offer guidance that would render it obvious modify the exemplified compounds to arrive at combination of independent claim 8. Claims 8-9 allowed. Allowable Subject Matter III The following is a statement of reasons for the indication of allowable subject matter as applicant claims a plurality of host represented by Formula 1 and Formula 3. The closest prior art as exemplified by Kaisha teaches Compd 4 which reads on applicants’ Formula 1, as discussed above. Kaisha fails to teach a combination of 3a and applicants’ Formula 3. Claims 10-15 allowed. Allowable Subject Matter IIII The following is a statement of reasons for the indication of allowable subject matter as applicant claims a plurality of host represented by Formula 1 and Formula 4, as required by independent claim 16. A search of the prior art fails to show the limitations of independent claim 10. The closest prior art as exemplified by Kaisha teaches Compd 4 which reads on applicants’ Formula 1, as discussed above. Kaisha fails to teach 3a as a combination with applicants’ Formula 4. The closest prior art: Kim (US 2017/0309841) teaches a plurality of host including a metal complex and a heterocycle compound (paragraph 8). The heterocycle is represented by H2-37 (page 21): PNG media_image4.png 330 384 media_image4.png Greyscale H2-37 reads on applicants’ Formula 4 wherein Ar10 is benzopyrimidine; L100 is a single bond; V = NX13, X13 is phenyl; X101 and X102 = H. While Kim teaches applicants’ Formula 4, Kim fails to teach a combination with applicants’ Formula 1 as required by independent claim 16 Claims 16-17 allowed. Allowable Subject Matter V The following is a statement of reasons for the indication of allowable subject matter as applicant claims a plurality of host represented by Formula 1 and Formula 5, as required by independent claim 18. The closest prior art: Kaisha teaches Compd 4, as discussed above. Kaisha fails to teach Compd 4 as a host material in a combination with applicants’ Formula 5. Kim II (US 2018/0182973 A1) teaches a plurality of host compounds (paragraph 7) one of the host is represented by H1-17 (page 7): PNG media_image5.png 444 307 media_image5.png Greyscale H1-17 reads on applicants’ Formula 5 wherein Ar = carbazole; Lr = biphenylene; Lq = single bond; Arq = phenyl; Lp = phenylene; T = 5-1; R6-R8 = H. Kim II fails to teach H1-17 in a combination with applicants’ Formula 1 as required by independent claim 18. Claims 18-20 allowed. Allowable Subject Matter VI The following is a statement of reasons for the indication of allowable subject matter as applicant claims the devices of independent claims 21, 22, 23, 24, and 25. A search of the prior art did not show the claimed invention. As each of the independent claims require an OLED containing applicants’ Formula 1 and Kaisha fails to teach an OLED containing 3a as required by the limitations of independent claims 21, 22, 23, 24, and 25. Claims 21-25 allowed. Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to GREGORY D CLARK whose telephone number is (571)270-7087. The examiner can normally be reached on 8AM-4PM 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, Jennifer Chriss can be reached on 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 an application may be obtained from the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see http://pair-direct.uspto.gov. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative or access to the automated information system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /GREGORY D CLARK/Primary Examiner, Art Unit 1786
Read full office action

Prosecution Timeline

Nov 02, 2022
Application Filed
Dec 18, 2025
Non-Final Rejection mailed — §102
Apr 16, 2026
Response Filed
Jun 04, 2026
Final Rejection mailed — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12685011
ORGANIC ELECTROLUMINESCENCE DEVICE AND AMINE COMPOUND FOR ORGANIC ELECTROLUMINESCENCE DEVICE
5y 8m to grant Granted Jul 14, 2026
Patent 12685009
Organic Electronic Device Comprising a Substrate, an Anode Layer, a Cathode Layer, at Least One First Emission Layer, and a Hole Injection Layer That Comprises a Metal Complex
3y 9m to grant Granted Jul 14, 2026
Patent 12685016
ORGANIC LIGHT-EMITTING DEVICE AND APPARATUS INCLUDING THE SAME
3y 7m to grant Granted Jul 14, 2026
Patent 12668592
ORGANIC LIGHT EMITTING DIODE AND ORGANIC LIGHT EMITTING DEVICE INCLUDING THE SAME
4y 0m to grant Granted Jun 30, 2026
Patent 12666867
COMPOSITION, POWDER, ORGANIC ELECTROLUMINESCENCE DEVICE, METHOD OF FABRICATING ORGANIC ELECTROLUMINESCENCE DEVICE, AND ELECTRONIC APPARATUS
4y 2m to grant Granted Jun 23, 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

3-4
Expected OA Rounds
85%
Grant Probability
93%
With Interview (+8.2%)
3y 1m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 1219 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