Prosecution Insights
Last updated: October 01, 2026
Application No. 18/008,868

Light-Emitting Device, Display Panel, Light-Emitting Apparatus, Display Device, Electronic Device, and Lighting Device

Final Rejection §112
Filed
Dec 07, 2022
Priority
Jun 12, 2020 — JP 2020-102473 +1 more
Examiner
CLARK, GREGORY D
Art Unit
1786
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Semiconductor Energy Laboratory Co., 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
1042 granted / 1230 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
55 currently pending
Career history
1261
Total Applications
across all art units

Statute-Specific Performance

§101
0.3%
-39.7% vs TC avg
§103
52.7%
+12.7% vs TC avg
§102
27.7%
-12.3% vs TC avg
§112
9.4%
-30.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1230 resolved cases

Office Action

§112
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 . The office acknowledges the receipt of applicants’ response to the previous office action dated 07/10/2026. Claim Rejections - 35 USC § 112 The following is a quotation of the first paragraph of 35 U.S.C. 112(a): (a) IN GENERAL.—The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor or joint inventor of carrying out the invention. The following is a quotation of the first paragraph of pre-AIA 35 U.S.C. 112: The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor of carrying out his invention. Claims 1-10 are rejected under 35 U.S.C. 112(a) or 35 U.S.C. 112 (pre-AIA ), first paragraph, as failing to comply with the written description requirement. The claim(s) contains subject matter which was not described in the specification in such a way as to reasonably convey to one skilled in the relevant art that the inventor or a joint inventor, or for applications subject to pre-AIA 35 U.S.C. 112, the inventor(s), at the time the application was filed, had possession of the claimed invention. Per MPEP 2163(II)(A)(3)(a)(ii), the written description requirement for a claimed genus may be satisfied through sufficient description of a representative number of species by (A) actual reduction to practice, (B) reduction to drawings, or (C) by disclosure of relevant, identifying characteristics, i.e., structure or other physical and/or chemical properties, by functional characteristics coupled with a known or disclosed correlation between function and structure, or by a combination of such identifying characteristics, sufficient to show the applicant was in possession of the claimed genus. A "representative number of species" means that the species which are adequately described are representative of the entire genus. Thus, when there is substantial variation within the genus, one must describe a sufficient variety of species to reflect the variation within the genus. Applicant continues to claim: EL layer with: 1st region, 2nd region, and 3rd region 1st unit, 2nd unit, and intermediate layer 2nd region has a 1st refractive index 3rd region has a 2nd refractive index Now amended: wherein the EL layer comprises a first region, a second region, and a third region, wherein the first region is between the second region and the third region, wherein the second region is between the first electrode and the first layer and included in the first unit, wherein the second region has a first refractive index, wherein the first region comprises the first layer, the intermediate layer, and the second layer, wherein the third region is between the second layer and the second electrode and included in the second unit, wherein the third region has a second refractive index, and wherein the second refractive index is lower than the first refractive index. Applicant fails to present a sufficient description of a representative number of species of (A) actual reduction to practice, (B) reduction to drawings, or (C) by disclosure of relevant, identifying characteristics, i.e., structure or other physical and/or chemical properties, by functional characteristics coupled with a known or disclosed correlation between function and structure, or by a combination of such identifying characteristics, sufficient to show the applicant was in possession of the claimed genus. Applicant has focused on light emitting materials and refractive index of said materials while providing no means to limit the scope of candidate materials commensurate in scope with the specification. In essence the scope of the claims is only limited by properties which encompasses all known materials possessing light emitting ability and an open ended comparative range of refractive index. The specification fails show an actual reduction to practice with a relevant number of examples of the invention including identifying characteristics beyond refractive index and light emitting. How does the office limit the scope of a search with such broad bookend limitations where the material options appear unbound or fully supported by the specification? There are no limiting physical material factors- only electronic properties (light emitting material and refractive index) limiting the material options. There is no combination of such identifying characteristics, sufficient to show the applicant was in possession of the claimed genus which makes the scope of the claims a serious search burden which is not fully supported by the specification. Applicant continues to claim a device with various layering containing materials from an unlimited reservoir only limited by a generic light emitting material and refractive index designation wherein said scope is not fully supported sufficiently to prove that applicant was in possession of the claimed invention. Response to Amendment The applicant’s arguments with respect to the pending claims have been considered but are moot in view of the new grounds of rejection necessitated by the applicant’s amendment. 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

Dec 07, 2022
Application Filed
Apr 15, 2026
Non-Final Rejection mailed — §112
Jul 10, 2026
Response Filed
Aug 26, 2026
Final Rejection mailed — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12741981
METAL COMPLEX AND USE THEREOF
3y 10m to grant Granted Sep 22, 2026
Patent 12735437
ORGANIC MOLECULES FOR OPTOELECTRONIC DEVICES
3y 10m to grant Granted Sep 15, 2026
Patent 12740317
ORGANIC LIGHT EMITTING ELEMENT
3y 10m to grant Granted Sep 15, 2026
Patent 12727376
LIGHT EMITTING DIODE AND POLYCYCLIC COMPOUND FOR THE SAME
4y 2m to grant Granted Sep 01, 2026
Patent 12703824
ORGANIC ELECTROLUMINESCENT ELEMENT
3y 11m to grant Granted Aug 11, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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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 1230 resolved cases by this examiner. Grant probability derived from career allowance rate.

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