Prosecution Insights
Last updated: September 17, 2026
Application No. 18/526,994

CERAMIDE COMPOUND CONTAINING CONJUGATED CARBOXYLIC ACID, PREPARATION METHOD THEREFOR AND APPLICATION

Non-Final OA §102
Filed
Dec 01, 2023
Examiner
CUTLIFF, YATE KAI RENE
Art Unit
Tech Center
Assignee
Shenzhen Dikeman Biotechnology Co. Ltd.
OA Round
1 (Non-Final)
80%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 80% — above average
80%
Career Allowance Rate
1038 granted / 1301 resolved
+19.8% vs TC avg
Strong +24% interview lift
Without
With
+24.3%
Interview Lift
resolved cases with interview
Typical timeline
2y 2m
Avg Prosecution
35 currently pending
Career history
1316
Total Applications
across all art units

Statute-Specific Performance

§101
3.9%
-36.1% vs TC avg
§103
38.6%
-1.4% vs TC avg
§102
13.1%
-26.9% vs TC avg
§112
34.4%
-5.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1301 resolved cases

Office Action

§102
DETAILED ACTION 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 . Election/Restrictions Applicant’s election without traverse of Group I, claims 1 – 16 in the reply filed on June 30, 2026 is acknowledged. Claims 7 – 10 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected invention, there being no allowable generic or linking claim. Election was made without traverse in the reply filed on June 30,2026. Claims 1 – 6 are under Examination. Status of Claims Claims 1 – 6 are pending. Claims 1 – 6 are rejected. Drawings The drawings are objected to because the single Figure is not referenced according to the MPEP 1.84 (u) Numbering of views. (1) The different views must be numbered in consecutive Arabic numerals, starting with 1, independent of the numbering of the sheets and, if possible, in the order in which they appear on the drawing sheet(s). Partial views intended to form one complete view, on one or several sheets, must be identified by the same number followed by a capital letter. View numbers must be preceded by the abbreviation "FIG." Where only a single view is used in an application to illustrate the claimed invention, it must not be numbered and the abbreviation "FIG." must not appear. Amending the title of the drawing to “The Figure” will overcome this objection. Specification The disclosure is objected to because of the following informalities: the specification refers to “The Figure” as Fig. 1 in paragraph [0056] and Figure 1 in paragraph [00108]. The objection can be overcome by amending the specification to “The Figure” when referring to the drawings. Appropriate correction is required. Claim Rejections - 35 USC § 102 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. 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. (a)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claim(s) 1 – 5 are rejected under 35 U.S.C. 102(a)(1) & (a)(2) as being anticipated by Abad et al. (WO2013/004871). The rejected claim covers, inter alia, a ceramide compound of formula I PNG media_image1.png 124 106 media_image1.png Greyscale , wherein R1 = condensation residues of ferulic acid, sinapic acid, abscisic acid, sotretinoin, tretinoin, fusidic acid, royal jelly acid, sorbic acid, caffeic acid or trans-cinnamic acid; and R2 is selected from one of the following structures:-C₁₅H₂₉, -C₁₅H₃₁> -C₁₅H₂₇, - CHOHC₁₄H₂₇, -CHOHC₁₄H₂₉. Dependent claims 2 – 5 further limit the compound. However, Abad discloses the compound of formula (I) PNG media_image2.png 134 178 media_image2.png Greyscale with the substituents as defined in the abstract. On such compound is listed on page 11 at line 23. PNG media_image3.png 36 564 media_image3.png Greyscale PNG media_image4.png 140 536 media_image4.png Greyscale . This anticipates Applicant’s compound of formula I when R1 is the residue of sorbic acid and R2 is -C15H31. 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 – 6 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Chang et al. (JACS, Communications, 2002). The rejected claim covers, inter alia, a ceramide compound of formula I PNG media_image1.png 124 106 media_image1.png Greyscale , wherein R1 = condensation residues of ferulic acid, sinapic acid, abscisic acid, sotretinoin, tretinoin, fusidic acid, royal jelly acid, sorbic acid, caffeic acid or trans-cinnamic acid; and R2 is selected from one of the following structures:-C₁₅H₂₉, -C₁₅H₃₁> -C₁₅H₂₇, - CHOHC₁₄H₂₇, -CHOHC₁₄H₂₉. Dependent claims 2 – 5 further limit the compound. Dependent claim 6 discloses that the compound of formula (I) is antioxidant. Chang discloses the synthesis and biological characterization of a ceramide library. Chang discloses the core: PNG media_image5.png 42 202 media_image5.png Greyscale , and the tail: PNG media_image6.png 46 154 media_image6.png Greyscale in Figure !. The completed structure is as follows: PNG media_image7.png 264 518 media_image7.png Greyscale This compound anticipates Applicant’s claim compound when R1 is the residue of tretinoin and R2 is CHOHC14H29. With regard to the feature of being an antioxidant. Chang discloses a compound of Applicant’s claim 1. “Products of identical chemical composition cannot have mutually exclusive properties.” 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. In re Spada, 911 F.2d 705, 709, 15 USPQ2d 1655, 1658 (Fed. Cir. 1990). Claim Rejections - 35 USC § 102 Claim(s) 1 – 6 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Park et al. (Bioorganic Chemistry, 2008). The rejected claim covers, inter alia, a ceramide compound of formula I PNG media_image1.png 124 106 media_image1.png Greyscale , wherein R1 = condensation residues of ferulic acid, sinapic acid, abscisic acid, sotretinoin, tretinoin, fusidic acid, royal jelly acid, sorbic acid, caffeic acid or trans-cinnamic acid; and R2 is selected from one of the following structures:-C₁₅H₂₉, -C₁₅H₃₁, -C₁₅H₂₇, - CHOHC₁₄H₂₇, -CHOHC₁₄H₂₉. Dependent claims 2 – 5 further limit the compound. Dependent claim 6 discloses that the compound of formula (I) is antioxidant. Park disclose divergent syntheses of all steroisomers of phytosphingosine and heir use in the construction of a ceramide library. (abstract). Park prepares the compound: PNG media_image8.png 48 604 media_image8.png Greyscale PNG media_image9.png 106 524 media_image9.png Greyscale This compound anticipates Applicant’s claim compound when R1 is the residue of cinnamic acid and R2 is CHOHC14H29. With regard to the feature of being an antioxidant. Chang discloses a compound of Applicant’s claim 1. “Products of identical chemical composition cannot have mutually exclusive properties.” 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. In re Spada, 911 F.2d 705, 709, 15 USPQ2d 1655, 1658 (Fed. Cir. 1990). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to YATE' K. CUTLIFF whose telephone number is (571)272-9067. The examiner can normally be reached Monday-Friday (8:30 - 5:30). 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, Scarlett Y. Goon can be reached at (571) 270-5241. 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. /YATE' K CUTLIFF/Primary Examiner, Art Unit 1692
Read full office action

Prosecution Timeline

Dec 01, 2023
Application Filed
Aug 11, 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

1-2
Expected OA Rounds
80%
Grant Probability
99%
With Interview (+24.3%)
2y 2m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1301 resolved cases by this examiner. Grant probability derived from career allowance rate.

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