Prosecution Insights
Last updated: July 17, 2026
Application No. 18/858,650

FERROELECTRIC NEMATIC LIQUID CRYSTALLINE MEDIUM

Non-Final OA §102
Filed
Oct 21, 2024
Priority
May 31, 2022 — EU 22176580.3 +1 more
Examiner
VISCONTI, GERALDINA
Art Unit
1737
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Merck Patent GmbH
OA Round
3 (Non-Final)
87%
Grant Probability
Favorable
3-4
OA Rounds
5m
Est. Remaining
88%
With Interview

Examiner Intelligence

Grants 87% — above average
87%
Career Allowance Rate
1159 granted / 1339 resolved
+21.6% vs TC avg
Minimal +1% lift
Without
With
+1.4%
Interview Lift
resolved cases with interview
Typical timeline
2y 2m
Avg Prosecution
29 currently pending
Career history
1372
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
29.2%
-10.8% vs TC avg
§102
30.9%
-9.1% vs TC avg
§112
17.2%
-22.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1339 resolved cases

Office Action

§102
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 Request for Continued Examination filed 29 April 2026, whereby the Amendment and Remarks filed 17 April 2026 was entered. Claims 1-13 remain pending and presently under consideration in this application. Response to Amendment Applicants have amended the base independent claim as follows and argue that said amendment sufficiently distinguishes the liquid crystal composition of the present claims from that of the prior art of record: PNG media_image1.png 88 893 media_image1.png Greyscale PNG media_image2.png 89 820 media_image2.png Greyscale Response to Arguments Applicant’s arguments with respect to the rejection of claims under 35 U.S.C. 102(a)(1) over Ookawa et al. (2018/0022999), as set forth in paragraph 8 of the previous FINAL office action on the merits, have been fully considered but they are not persuasive. Applicants argue that the prior art of record lacks “any explicit disclosure” of a “ferroelectric” liquid crystalline medium, and assert that the “earliest reports of the existence of ferroelectric nematic materials did not appear until 2020, well before the disclosures of these documents”. Initially, the Examiner notes that applicants have simply amended the base independent claim 1 from reciting “A ferroelectric liquid crystalline medium“ in the preamble, to now reciting “wherein the nematic liquid crystalline medium is a ferroelectric nematic liquid crystalline medium” in the penultimate/ultimate lines of claim 1. The liquid crystalline medium of (at least) independent claim 1 simply requires one or more compounds of formula IA, which is expressly taught in the prior art of record, and there is no structural difference between the liquid crystalline medium of the claimed invention and the liquid crystalline medium of the prior art. A chemical composition and its properties are inseparable. Therefore, if the prior art teaches the identical chemical structure, the properties applicant discloses and/or claims are necessarily present. [MPEP 2112.01 In re Spada, 911 F.2d 705, 709, 15 USPQ2d 1655, 1658 (Fed. Cir. 1990)]. Subsequently, the Examiner asserts that the liquid crystalline medium of the prior art of record characterized by comprising one or more compounds of formula IA in a % by weight as claimed, is inherently ferroelectric. Additionally, the Examiner notes that there is no requirement that a person of ordinary skill in the art would have recognized the inherent disclosure at the relevant time, but only that the subject matter is in fact inherent in the prior art reference. Schering Corp. v. Geneva Pharm. Inc., 339 F.3d 1373, 1377, 67 USPQ2d 1664, 1668 (Fed. Cir. 2003). As such, the Examiner asserts that the liquid crystalline medium of the prior art of record is capable of inherently possessing the recited property of being ferroelectric. "[T]he discovery of a previously unappreciated property of a prior art composition, or of a scientific explanation for the prior art’s functioning, does not render the old composition patentably new to the discoverer." Atlas Powder Co. v. IRECO Inc., 190 F.3d 1342, 1347, 51 USPQ2d 1943, 1947 (Fed. Cir. 1999). Thus the claiming of a new use, new function or unknown property which is inherently present in the prior art does not necessarily make the claim patentable. In re Best, 562 F.2d 1252, 1254, 195 USPQ 430, 433 (CCPA 1977). Upon further reconsideration, the rejection of claims under 35 U.S.C. 102(a)(1) over each of Tanaka et al. (‘888) and Wittek et al. (‘253), as respectively set forth in paragraphs 9 and 10 of the previous FINAL office action on the merits, are hereby withdrawn. 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 § 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. Claims 1-13 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Ookawa (U.S. Patent Application Publication No. 2018/0022999). Ookawa teaches 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, characterized in that said liquid crystal medium comprises a compound inclusive of the compound of the present formula IA, as generally represented therein by PNG media_image3.png 140 727 media_image3.png Greyscale (abstract; [0026], p. 2; examples; claims), and more specifically, as represented therein by PNG media_image4.png 138 691 media_image4.png Greyscale or PNG media_image5.png 146 698 media_image5.png Greyscale ([0084], p.6). Also, please note the following exemplified compounds (p. 106+): PNG media_image6.png 153 705 media_image6.png Greyscale PNG media_image7.png 150 705 media_image7.png Greyscale PNG media_image8.png 120 713 media_image8.png Greyscale PNG media_image9.png 131 730 media_image9.png Greyscale PNG media_image10.png 158 731 media_image10.png Greyscale PNG media_image11.png 312 723 media_image11.png Greyscale PNG media_image12.png 128 724 media_image12.png Greyscale PNG media_image13.png 163 698 media_image13.png Greyscale PNG media_image14.png 145 690 media_image14.png Greyscale PNG media_image15.png 315 740 media_image15.png Greyscale PNG media_image16.png 159 712 media_image16.png Greyscale . Ookawa teaches a liquid crystal medium comprising a chiral agent, as represented by PNG media_image17.png 188 419 media_image17.png Greyscale added to Example 36 therein ([0630], p. 128+) which comprises at least one compound inclusive of the compound of the present formula IA, in an amount of at least 15% by weight as recited in the present claim 3, as well as at least one compound inclusive of the compound of the present formula IB, such that the % by weight of the compounds of formulae IA + IB is at least 80% as recited in the present claim 5. The Examiner asserts that the liquid crystalline medium of Ookawa characterized by comprising one or more compounds of formula IA in a % by weight is claimed, is inherently ferroelectric. Allowable Subject Matter The Examiner notes that claims rewritten to be limited to the ferroelectric nematic liquid crystalline medium comprising at least one compound of formula IA PNG media_image18.png 149 722 media_image18.png Greyscale wherein at least one of the substituents A1A is represented by PNG media_image19.png 157 212 media_image19.png Greyscale are considered to distinguish patentably over the art of record in this application. 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, Anthony J Zimmer can be reached at (571)270-3591. 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

Oct 21, 2024
Application Filed
Jul 29, 2025
Non-Final Rejection mailed — §102
Oct 28, 2025
Response Filed
Feb 19, 2026
Final Rejection mailed — §102
Apr 17, 2026
Response after Non-Final Action
Apr 29, 2026
Request for Continued Examination
May 02, 2026
Response after Non-Final Action
Jun 17, 2026
Non-Final Rejection mailed — §102 (current)

Precedent Cases

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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
87%
Grant Probability
88%
With Interview (+1.4%)
2y 2m (~5m remaining)
Median Time to Grant
High
PTA Risk
Based on 1339 resolved cases by this examiner. Grant probability derived from career allowance rate.

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