Prosecution Insights
Last updated: September 17, 2026
Application No. 18/291,607

MOLECULES AS ANTICANCER AGENTS FOR TARGETED TREATMENT OF BREAST AND PROSTATE CANCER

Final Rejection §112
Filed
Jan 24, 2024
Priority
Jul 26, 2021 — IN 202141019126 +1 more
Examiner
ROMERO, KRISTEN WANG
Art Unit
1624
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Dr Boggarapu Prakash Rao
OA Round
2 (Final)
70%
Grant Probability
Favorable
3-4
OA Rounds
6m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 70% — above average
70%
Career Allowance Rate
32 granted / 46 resolved
+9.6% vs TC avg
Strong +31% interview lift
Without
With
+31.1%
Interview Lift
resolved cases with interview
Typical timeline
3y 2m
Avg Prosecution
41 currently pending
Career history
74
Total Applications
across all art units

Statute-Specific Performance

§101
3.7%
-36.3% vs TC avg
§103
21.9%
-18.1% vs TC avg
§102
20.4%
-19.6% vs TC avg
§112
36.5%
-3.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 46 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 . Status of the Claims Claims 1 and 6 are pending. Claims 2-5 and 7 are cancelled. Status of Priority The present application is a 35 U.S.C. § 371 national stage patent application of International patent application PCT/IB2022/056868, filed on July 26, 2022. This application also claims the benefits of foreign priority to IN202141019126, filed on July 26, 2021. Specification The disclosure is objected to because of the following informalities: The terms “5-flurouracil” and “cladibrine” are misspelled. As discussed below in the “Claim Objections” section, all instances of “5-flurouracil” and “cladibrine” in the instant specification should be corrected to “5-fluorouracil” and “cladribine.” Appropriate correction is required. Withdrawn Rejections Applicant is notified that any outstanding rejection or objection that is not expressly maintained in this office action has been withdrawn or rendered moot in view of applicant' s amendments and/or remarks. Claim Objections Claim 1 is objected to because of the following informalities: Claim 1 recites: “… A is an anticancer agent selected from the group consisting of 5-flurouracil, … cladibrine…” According to Scifinder, “5-flurouracil” should be spelled as “5-fluorouracil” and “cladibrine” should be spelled as “cladribine” as shown in the search results reproduced below: PNG media_image1.png 519 970 media_image1.png Greyscale PNG media_image2.png 706 1169 media_image2.png Greyscale . Appropriate correction is required. Claim Rejections - 35 USC § 112(b) 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. Claim 6 is 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. Claim 6 recites: “A method of synthesizing the molecule of formula (I) of claim 1, synthesizing by esterification of the acid, the hormone derivative and the anticancer agent the molecule of formula (I).” It is unclear from the language of claim 6 what is meant by “synthesizing by esterification of the acid, the hormone derivative and the anticancer agent the molecule of formula (I).” For example, the claim may be interpreted as requiring esterification of each of the acid, hormone derivative, and anticancer agent individually, thereby forming three separate esterified compounds. Under such an interpretation, however, it is unclear how the three separate esterified compounds are subsequently combined to form the single conjugate represented by the molecule of formula (I) of claim 1. Alternatively, the claim may be interpreted as requiring esterification of an acid (B) with an anticancer agent (A) to form the A-B portion of the molecule of formula (I), followed by esterification of the resulting A-B intermediate with a hormone derivative (C) to form the molecule of formula (I) (i.e., A-B-C recited in instant claim 1). Furthermore, the recited esterification reaction is inconsistent with at least certain embodiments disclosed in the specification. For example, instant figure 1 depicts an embodiment wherein citric acid is linked to 5-fluorouracil through an amide linkage, rather than an ester linkage: PNG media_image3.png 439 767 media_image3.png Greyscale . Thus, it is unclear how the recited “esterification of the acid, the hormone derivative and the anticancer agent the molecule of formula (I)” encompasses embodiments in which the linkage between the acid and the anticancer agent is an amide bond. As such, the scope of the claimed method is unclear. The following is provided solely as an example of claim language that more clearly recites a method limitation. This example is not intended to suggest any particular reaction sequence or claim scope. Applicant may amend the claim in any manner, consistent with the disclosure, that clearly recites the intended synthetic step(s) required to form the molecule of formula (I) of claim 1: “A method of synthesizing the molecule of formula (I) of claim 1, the method comprising esterifying an acid with a hormone derivative, wherein the acid and the hormone derivative are as defined in claim 1.” Allowable Subject Matter Claim 1 is objected to but would be allowable once appropriate corrections are made. Conclusion Claim 1 is objected to. Claim 6 is rejected. 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 KRISTEN ROMERO whose telephone number is (571)272-6478. The examiner can normally be reached M-F 9:30 AM - 6:00 PM ET. 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, JEFFREY H. MURRAY can be reached at (571) 272-9023. 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. /KRISTEN W ROMERO/Examiner, Art Unit 1624 /JEFFREY H MURRAY/Supervisory Patent Examiner, Art Unit 1624
Read full office action

Prosecution Timeline

Jan 24, 2024
Application Filed
Apr 07, 2026
Non-Final Rejection mailed — §112
Aug 05, 2026
Response Filed
Aug 24, 2026
Final Rejection mailed — §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

3-4
Expected OA Rounds
70%
Grant Probability
99%
With Interview (+31.1%)
3y 2m (~6m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 46 resolved cases by this examiner. Grant probability derived from career allowance rate.

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