Prosecution Insights
Last updated: April 19, 2026
Application No. 18/109,031

Benzylideneaminoguanidine derivatives as NR2B-selective NMDA receptor antagonists and their therapeutic applications

Final Rejection §103§112
Filed
Feb 13, 2023
Examiner
HARTLEY, MICHAEL G
Art Unit
1618
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Inflectis Bioscience
OA Round
2 (Final)
33%
Grant Probability
At Risk
3-4
OA Rounds
4y 10m
To Grant
99%
With Interview

Examiner Intelligence

Grants only 33% of cases
33%
Career Allow Rate
21 granted / 63 resolved
-26.7% vs TC avg
Strong +78% interview lift
Without
With
+78.2%
Interview Lift
resolved cases with interview
Typical timeline
4y 10m
Avg Prosecution
12 currently pending
Career history
75
Total Applications
across all art units

Statute-Specific Performance

§101
2.5%
-37.5% vs TC avg
§103
41.4%
+1.4% vs TC avg
§102
20.3%
-19.7% vs TC avg
§112
21.7%
-18.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 63 resolved cases

Office Action

§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 . Response to Amendment The amendment filed 7/28/2025 has been entered. Claims 5 and 11 have been amended and are the only claims pending in the application as all other claims have been canceled. New grounds of rejection 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 5 and 11 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. Claim 5 is indefinite because it recites IFP-088 (Sephin-1) having the formula and recites two formulae both a generic formula and the specific formula (species) for Sephin-1. Since no line is drawn through the generic formula, it is still present in the claim which renders the claim indefinite because it is unclear if it part of the claim. Claim 11 falls therewith. Clearly removing the generic formula (while leave the formula for the species, Sephin-1) would obviate this rejection. Claim Rejections - 35 USC § 103 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 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. Claim(s) 5 and 11 are rejected under 35 U.S.C. 103 as being unpatentable over PORCO, WO 2011140334 [892 attached] in view of Ruiz et al. [IDS, dated 2/13/2023]. Regarding claim 5, PORCO disclose methods of treating various disease by administering compounds which inhibit eIF2, including, eIF2-alpha, see abstract, page 2, esp. para [0010] wherein the disease includes idiopathic pulmonary fibrosis (IFP), see page 65 esp. [00174]. PORCO fails to teach that the eIF2-alpha inhibitor is Sephim-1, as instantly claimed. Ruiz teaches that Sephin-1 is an eIF2-alpha inhibitor with therapeutic potential since it does not have an adverse effects on the alpha2 adrenergic system. It would have been obvious to either substitute or additionally add Sephin-1 in the methods taught by PORCO of treating IFP with eIF2 inhibiting compounds because Ruiz teaches the Sephin-1 is an eIF2-alpha inhibitor with therapeutic potential that provides the advantage of not have an adverse effects on the alpha2 adrenergic system. Regarding claim 11, since the prior art as modified above may encompass the same steps as the instant claims, the same functions of not causing side effects would also be expected to be present, as a compound and its properties are inseparable. It is noted the instant specification does not describe any specifics that would lead to the properties set forth in claim 11. 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 Michael G Hartley whose telephone number is (571)272-0616. The examiner can normally be reached 10-6:30. 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, Jennifer Michener can be reached at 5712721424. 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. /Michael G. Hartley/Supervisory Patent Examiner, Art Unit 1618
Read full office action

Prosecution Timeline

Feb 13, 2023
Application Filed
Jan 21, 2025
Non-Final Rejection — §103, §112
Jul 28, 2025
Response Filed
Nov 05, 2025
Final Rejection — §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

3-4
Expected OA Rounds
33%
Grant Probability
99%
With Interview (+78.2%)
4y 10m
Median Time to Grant
Moderate
PTA Risk
Based on 63 resolved cases by this examiner. Grant probability derived from career allow rate.

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