Prosecution Insights
Last updated: April 19, 2026
Application No. 18/888,536

LIQUID-CRYSTAL MEDIUM

Final Rejection §102§103§112
Filed
Sep 18, 2024
Examiner
VISCONTI, GERALDINA
Art Unit
1737
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Merck Patent GmbH
OA Round
4 (Final)
86%
Grant Probability
Favorable
5-6
OA Rounds
2y 5m
To Grant
88%
With Interview

Examiner Intelligence

Grants 86% — above average
86%
Career Allow Rate
1146 granted / 1325 resolved
+21.5% vs TC avg
Minimal +2% lift
Without
With
+1.5%
Interview Lift
resolved cases with interview
Typical timeline
2y 5m
Avg Prosecution
36 currently pending
Career history
1361
Total Applications
across all art units

Statute-Specific Performance

§101
1.8%
-38.2% vs TC avg
§103
23.9%
-16.1% vs TC avg
§102
23.9%
-16.1% vs TC avg
§112
32.2%
-7.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1325 resolved cases

Office Action

§102 §103 §112
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 . This office action is responsive to the Amendment and Remarks filed 24 February 2026, wherein claim 17 was canceled. Subsequently, claims 1-7 and 9-16 remain pending and presently under consideration in this application. Response to Amendment The rejection of claim 1 under 35 U.S.C. 112(b) or 35 U.S.C. 112(pre-AIA ), second paragraph, as set forth in each of paragraphs 8 and 10 of the previous office action on the merits, are hereby withdrawn in view of applicant’s amendments to the same. Applicant’s amendments have failed to satisfactorily address the rejection of claim 1 under 35 U.S.C. 112(b) or 35 U.S.C. 112(pre-AIA ), second paragraph, as set forth in paragraph 9 of the previous office action on the merits. The rejection of claim 17 under 35 U.S.C. 112(b) or 35 U.S.C. 112(pre-AIA ), second paragraph, as set forth in paragraph 11 of the previous office action on the merits, is hereby withdrawn in view of applicant’s cancellation of the same. The objection of claim 3, as set forth in paragraph 20 of the previous office action on the merits, is hereby withdrawn in view of applicant’s amendments to the same. Applicants have amended the base independent claim 1 to delete the compound of formula V-9, such that component “c” is limited to being compound of formula V-13. Response to Arguments Applicants’ arguments filed 24 February 2026 generally allege that the amendments to claim 1 overcome the rejection(s) under 35 U.S.C. 112(b) or 35 U.S.C. 112(pre-AIA ), second paragraph, as set forth in the previous office action on the merits, and do not directly address the rejections independently. Applicants’ arguments filed 24 February 2026 with respect to the rejections of claims under 35 U.S.C. 102(a)(1) over each of Sugisawa et al. (CN 114907865 A), (CN 115678570 A), Hirschmann et al. (GB 2539153 A), and Hirschmann et al. (USPGPUB 2023/0272282), as respectively set forth in paragraphs 14-17 of the previous office action on the merits, said argument essentially to the effect that the deletion of compound V-9 from the base independent claim 1 renders the rejections moot, have been fully considered and are persuasive. The aforementioned rejections have been withdrawn. Applicants’ arguments filed 24 February 2026 with respect to the rejection of claims under 35 U.S.C. 103 over Hirschmann et al. (U.S. Patent Application Publication No. 2023/0272282), as set forth in paragraph 19 of the previous office action on the merits, have been fully considered but are not persuasive. Initially, the Examiner notes that applicants’ argument alleging that the rejection over Hirschmann ‘282 “should not be maintained against amended claim 1 and dependent claims thereof” since “in the Office Action, only corresponding structure for the claimed one or more compound of formula V-9 were identified” is not factually correct. The rejection set forth in paragraph 19 of the previous office action on the merits clearly mentioned the page/section wherein Hirschmann teaches a compound of formula V-13. In response to applicant’s arguments regarding the lack thereof Hirschmann “disclosing a singular example containing all the claimed component compounds”, the Examiner kindly reminds applicants that the rejection is under 35 U.S.C. 103, and not under 35 U.S.C. 102. Applicants’ arguments that Hirschmann et al.’s teaching of the use of compounds inclusive of the compounds of the present formulae BC and/or PH-1 as “preferred” ([0175]), “particularly preferred” ([0176]) and “very particular preference” ([0177]) is “paltry guidance”, has been considered, but is not persuasive. In response to applicant’s argument that there is no teaching, suggestion, or motivation in Hirschmann et al. as to the benefits there from the use of compounds inclusive of the compounds of the present formulae BC and/or PH-1, the Examiner recognizes that obviousness may be established by combining or modifying the teachings of the prior art to produce the claimed invention where there is some teaching, suggestion, or motivation to do so found either in the references themselves or in the knowledge generally available to one of ordinary skill in the art. See In re Fine, 837 F.2d 1071, 5 USPQ2d 1596 (Fed. Cir. 1988), In re Jones, 958 F.2d 347, 21 USPQ2d 1941 (Fed. Cir. 1992), and KSR International Co. v. Teleflex, Inc., 550 U.S. 398, 82 USPQ2d 1385 (2007). In this case, the express teaching that the compounds inclusive of the compounds of the present formulae BC and/or PH-1 is very particularly preferred is sufficient motivation for their use thereof. 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 1-7 and 9-16 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. Amended claim 1 remains rejected as being vague and indefinite when it recites “wherein the one or more compounds of sub-formula V-13 is different from the one or more compounds of formula I” (emphasis added); the scope of the protection sought is not clear. The compound of formula PNG media_image1.png 89 647 media_image1.png Greyscale is not a sub-formula of the compound of formula PNG media_image2.png 88 561 media_image2.png Greyscale , and is thus inherently different from the compound of formula I . Amended claim 1 fails to particularly point out and distinctly claim the contents of the claimed liquid crystal medium. 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. Claim Rejections - 35 USC § 103 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. Claims 1-7 and 9-16 are rejected under 35 U.S.C. 103 as being obvious over Hirschmann et al. (U.S. Patent Application Publication No. 2023/0272282). Hirschmann et al. discloses a liquid crystal medium, the corresponding method of preparation thereof said liquid crystal medium, as well as the corresponding use thereof said liquid crystal medium in a liquid crystal display device, characterized in that said liquid crystal medium comprises a combination of compounds as claimed: at least one compound inclusive of the compound of the present formula I as generally represented therein by PNG media_image3.png 107 403 media_image3.png Greyscale ([0153]; at least one compound inclusive of the compound of the present formula V-13, as is now claimed in the base indepdnt claim 1, as represented therein by PNG media_image4.png 104 414 media_image4.png Greyscale ([0153]; p. 33). Hirschmann et al. teaches ([0175], p. 41) that preferred mixtures comprise one or more compound of at least one compound inclusive of the compound of the present formula BC as generally represented therein by PNG media_image5.png 121 437 media_image5.png Greyscale ([0175]; p. 41) and/or at least one compound inclusive of the compound of the present formula PH-1 as generally represented therein by PNG media_image6.png 122 430 media_image6.png Greyscale ([0175]; p. 41). Hirschmann et al. also teaches that the liquid crystal medium comprises: at least one compound inclusive of the compound of the general formula III as recited in claim 16, as well as the more specific present formula III-1 and III-6 as recited in claim 2, respectively represented therein by PNG media_image7.png 122 424 media_image7.png Greyscale ([0099]; p. 23) and PNG media_image8.png 147 423 media_image8.png Greyscale ([0113]; p. 25); at least one compound inclusive of the compound of the present formulae IIA, IIB, IIC, and IID recited in claim 3, as respectively generally represented therein by PNG media_image9.png 156 424 media_image9.png Greyscale PNG media_image10.png 157 451 media_image10.png Greyscale PNG media_image11.png 133 423 media_image11.png Greyscale PNG media_image12.png 155 458 media_image12.png Greyscale ([0076]; p. 4-5); at least one compound inclusive of the compound of the present formula IIIA, as recited in claim 4, as generally represented therein by PNG media_image13.png 121 424 media_image13.png Greyscale ([0099]; p. 23); at least one compound inclusive of the compound of the present formula IV as recited in claims 5 and 6, as generally represented therein by PNG media_image14.png 90 420 media_image14.png Greyscale ([0118]; p. )28; at least one compound inclusive of the compound of the present formula IVa-2 as recited in claim 7, as generally represented therein by PNG media_image15.png 88 443 media_image15.png Greyscale ([0139]; p. 31); at least one compound inclusive of the compound of the present formulae VI-1 through VI-21, as recited in claim 9 ([0153]; p. 32-33); at least one compound inclusive of the compounds of the present formula CR and formula PH-2, as recited in claim 10, as generally respectively represented therein by PNG media_image16.png 148 423 media_image16.png Greyscale ([0175]; p. 41);and PNG media_image17.png 154 433 media_image17.png Greyscale ([0175]; p. 41).Although each of Examples M21 and M22 (p. 132) therein teach the liquid crystal medium comprising a combination of compounds inclusive of the compounds of the present formulae I, V-9, III/III-6, IIA, IID, and IV/IV-3: PNG media_image18.png 307 424 media_image18.png Greyscale PNG media_image19.png 309 411 media_image19.png Greyscale Hirschmann et al. does not expressly illustrate the further incorporation of at least one compound of formula V-13, BC and/or PH-1, each of which are well known in the liquid crystal art, individually as well as in combination, as generally taught therein. It would have been obvious to one of ordinary skill in the requisite art at the time the invention was filed to further utilize at least one compound of formula V-13, BC and/or PH-1 in the inventive liquid crystal medium of Hirschmann et al., as “preferably” taught therein, with reasonable expectations of achieving, absent object evidence to the contrary, the advantages taught therein, as well as those associated with their combination thereof. The applied reference has a common assignee with the instant application. Based upon the earlier effectively filed date of the reference, it constitutes prior art under 35 U.S.C. 102(a)(2). This rejection under 35 U.S.C. 103 might be overcome by: (1) a showing under 37 CFR 1.130(a) that the subject matter disclosed in the reference was obtained directly or indirectly from the inventor or a joint inventor of this application and is thus not prior art in accordance with 35 U.S.C.102(b)(2)(A); (2) a showing under 37 CFR 1.130(b) of a prior public disclosure under 35 U.S.C. 102(b)(2)(B); or (3) a statement pursuant to 35 U.S.C. 102(b)(2)(C) establishing that, not later than the effective filing date of the claimed invention, the subject matter disclosed and the claimed invention were either owned by the same person or subject to an obligation of assignment to the same person or subject to a joint research agreement. See generally MPEP § 717.02. Conclusion THIS ACTION IS MADE FINAL. 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 Geraldina Visconti whose telephone number is (571)272-1334. The examiner can normally be reached Monday-Friday, 8:00am-4:30pm. 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, Mark F Huff can be reached at 571-272-1385. 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. GERALDINA VISCONTI Primary Examiner Art Unit 1737 /GERALDINA VISCONTI/Primary Examiner, Art Unit 1737
Read full office action

Prosecution Timeline

Sep 18, 2024
Application Filed
Apr 26, 2025
Non-Final Rejection — §102, §103, §112
Jul 30, 2025
Response Filed
Aug 08, 2025
Final Rejection — §102, §103, §112
Oct 13, 2025
Response after Non-Final Action
Oct 30, 2025
Request for Continued Examination
Nov 02, 2025
Response after Non-Final Action
Nov 19, 2025
Non-Final Rejection — §102, §103, §112
Feb 24, 2026
Response Filed
Mar 11, 2026
Final Rejection — §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

5-6
Expected OA Rounds
86%
Grant Probability
88%
With Interview (+1.5%)
2y 5m
Median Time to Grant
High
PTA Risk
Based on 1325 resolved cases by this examiner. Grant probability derived from career allow rate.

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