Prosecution Insights
Last updated: August 06, 2026
Application No. 17/792,468

COMBINATION FOR THE TREATMENT OF CANCER AND APPLICATION THEREOF

Final Rejection §112
Filed
Sep 07, 2022
Priority
Jan 14, 2020 — provisional 62/961,131 +1 more
Examiner
ROBINSON, MIKHAIL O'DONNEL
Art Unit
1627
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Everfront Biotech Inc.
OA Round
4 (Final)
59%
Grant Probability
Moderate
5-6
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 59% of resolved cases
59%
Career Allowance Rate
73 granted / 124 resolved
-1.1% vs TC avg
Strong +42% interview lift
Without
With
+41.5%
Interview Lift
resolved cases with interview
Typical timeline
3y 4m
Avg Prosecution
44 currently pending
Career history
160
Total Applications
across all art units

Statute-Specific Performance

§101
5.2%
-34.8% vs TC avg
§103
40.8%
+0.8% vs TC avg
§102
22.2%
-17.8% vs TC avg
§112
22.1%
-17.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 124 resolved cases

Office Action

§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 . Response to Arguments Applicant’s arguments, see Pages 2-7, filed 04/01/2026, with respect to the 103 rejection of claims 11-12, 14 and 18-24 over Chen et al. (US Patent No. 8445532) in view of Tisdale, Mechanisms of Cancer Cachexia, Physiological Reviews Vol. 89, April 2009, Pages 381-410 have been fully considered and are persuasive. The rejection of claims 11-12, 14 and 18-24 has been withdrawn. Applicant has canceled claims 12, 14, 24 and added claim 25. Claims 11, 13, 15-23 and 25 are pending. Claims 11, 13, 15-23 and 25 are now evaluated on its merits. 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. Claim 23 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 23 recites the limitation "the method of claim 20, which is the attenuating the symptom of cachexia" in lines 1-2. There is insufficient antecedent basis for this limitation in the claim. Claim 20, in which claim 23 depends from recites “the method of treating cancer” and fails to include the limitation of cachexia. Allowable Subject Matter Claims 11, 13, 15-22 and 25 are allowed. Closest prior art is of Chen et al. (US Patent No. 8445532). Chen teaches a method of treating a tumor having resistance to an anti-cancer drug in a subject, wherein the tumor exhibits either overexpression of at least one selected from the group consisting of P-gp and Bcl-2, or over-activity of glyoxalase I. The method comprising administering to the subject, the anti-cancer drug selected from Cisplatin, Topotecan, Etoposide, Fluorouracil, Irinotecan, Mitoxantrone, Gemcitabine, Oxaliplatin and a therapeutically effective amount of compound (II) PNG media_image1.png 118 164 media_image1.png Greyscale PNG media_image2.png 112 326 media_image2.png Greyscale PNG media_image3.png 123 328 media_image3.png Greyscale (claim 1, page 2 1st para.). The above compound having R1-R2 as Hydrogen or R2 as C1-C8 alkyl or alkenyl, R5 - R8 as hydrogen, R6 as OH or R7 as OH reads to the claimed invention of formula (I), in which X is H or OH, Y is O, R1 is absent and Y and A bind to form a five membered ring. The cancers being treated taught by Chen includes non-small cell lung cancer, prostate cancer, intestinal cancer, hepatocarcinoma, leukemia, myeloma, lymphoma, mammary cancer, ovary cancer, gastric cancer, esophagus cancer, colonic cancer, or sarcoma (Page 4, 2nd para.) by way of a pharmaceutical composition of the combination of the above compounds with an anti-cancer drug (Page 8). 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 MIKHAIL O'DONNEL ROBINSON whose telephone number is (571)270-0777. The examiner can normally be reached Monday-Friday 7:30am-5:30pm. 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, Kortney Klinkel can be reached at 571-270-5239. 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. MIKHAIL O'DONNEL. ROBINSON Examiner Art Unit 1627 /MIKHAIL O'DONNEL ROBINSON/Examiner, Art Unit 1627 /SARAH PIHONAK/Primary Examiner, Art Unit 1627
Read full office action

Prosecution Timeline

Show 3 earlier events
Sep 30, 2025
Final Rejection mailed — §112
Nov 24, 2025
Response after Non-Final Action
Dec 30, 2025
Request for Continued Examination
Jan 06, 2026
Response after Non-Final Action
Jan 12, 2026
Non-Final Rejection mailed — §112
Mar 03, 2026
Interview Requested
Apr 01, 2026
Response Filed
Jun 26, 2026
Final Rejection mailed — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12691094
USE OF CRASSIFOLIN A IN PREPARATION OF DRUG FOR PROMOTING MITOPHAGY AND TREATING NEURODEGENERATIVE DISEASES
2y 11m to grant Granted Jul 28, 2026
Patent 12691085
CANCER TREATMENT COMPOSITION AND METHOD
3y 1m to grant Granted Jul 28, 2026
Patent 12686686
DAPHNANE DITERPENOID RESISTANT TO PROSTATE CANCER AND PREPARATION METHOD THEREOF
3y 6m to grant Granted Jul 21, 2026
Patent 12673954
BENZOFURAN COMPOUNDS AS STING AGONISTS
2y 11m to grant Granted Jul 07, 2026
Patent 12667551
RENAL FUNCTION MAINTENANCE AND PROTECTION AGENT, AND METHOD FOR EVALUATING EFFECT THEREOF
5y 6m to grant Granted Jun 30, 2026
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
59%
Grant Probability
99%
With Interview (+41.5%)
3y 4m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 124 resolved cases by this examiner. Grant probability derived from career allowance rate.

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