Prosecution Insights
Last updated: October 01, 2026
Application No. 18/294,814

ALPHA-METHYLENE AND AMINOMETHYL LACTONES AND LACTAMS FOR TREATMENT OF CLOSTRIDIOIDES DIFFICILE INFECTION (CDI)

Non-Final OA §102
Filed
Feb 02, 2024
Priority
Feb 03, 2022 — provisional 63/306,164 +1 more
Examiner
SHTERENGARTS, SAMANTHA L
Art Unit
1623
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Purdue Research Foundation
OA Round
1 (Non-Final)
80%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
88%
With Interview

Examiner Intelligence

Grants 80% — above average
80%
Career Allowance Rate
1350 granted / 1699 resolved
+19.5% vs TC avg
Moderate +8% lift
Without
With
+8.0%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 1m
Avg Prosecution
54 currently pending
Career history
1727
Total Applications
across all art units

Statute-Specific Performance

§101
3.6%
-36.4% vs TC avg
§103
14.8%
-25.2% vs TC avg
§102
24.7%
-15.3% vs TC avg
§112
34.7%
-5.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1699 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 . Priority 2. PNG media_image1.png 156 635 media_image1.png Greyscale Information Disclosure Statement 3. The information disclosure statements (IDS) submitted on February 2, 2024 and March 11, 2026 were in compliance with the provisions of 37 CFR 1.97 and 37 CFR 1.98. The IDS documents were considered. A signed copy of each form 1449 is enclosed herewith. Election/Restrictions 4. Applicant’s election without traverse of Group I in the reply filed on June 18, 2026 is acknowledged. 5. In accordance with the MPEP 803.02, if upon examination of the elected species, no prior art is found that would anticipate or render obvious the instant invention based on the elected species, the search of the Markush-type claim will be extended (see MPEP 803.02). If prior art is then found that anticipates or renders obvious the non-elected species, the Markush-type claim will be rejected. It should be noted that the prior art search will not be extended unnecessarily to cover all non-elected species. Should Applicant overcome the rejection by amending the claim, the amended claim will be reexamined. Id. The prior art search will be extended to the extent necessary to determine patentability of the Markush-type claim. Id. In the event prior art is found during reexamination that renders obvious or anticipates the amended Markush-type claim, the claim will be rejected and the action made final. Id. 6. As per MPEP 803.02, the Examiner will determine whether the entire scope of the claims is patentable. Applicants' elected species PNG media_image2.png 149 141 media_image2.png Greyscale makes a contribution over the prior art of record. Therefore, according to MPEP 803.02: should the elected species appear allowable, the search of the Markush-type claim will be extended. The Markush-type claim shall be rejected and claims to the nonelected invention held withdrawn from further consideration. It has been determined that the entire scope claimed is not patentable. Status of Claims 7. Claims 1-11 and 13-17 are pending in the instant application. Claims 3, 5-6, 10-11, 13, and 16-17 are withdrawn from further consideration pursuant to 37 CFR 1.142(b), as being drawn to a non-elected invention and species. Therefore, claims 1, 2, 4, 7-9, 14, and 15 read on an elected invention and species and are therefore under consideration in the instant application. Claim Objections 8. Claims 14-15 are objected to under 37 CFR 1.75 as being a substantial duplicate of claims 8-9. When two claims in an application are duplicates or else are so close in content that they both cover the same thing, despite a slight difference in wording, it is proper after allowing one claim to object to the other as being a substantial duplicate of the allowed claim. See MPEP § 608.01(m). 9. Claim 4 is objected to for depending on a rejected base claim. Claim Rejections - 35 USC § 102 10. 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. 11. 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 12. Claims 1, 2, and 7 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by CAS Registry Number: RN 2724238-01-9. [Database Registry Chemical Abstracts Service, Columbus, Ohio, Accession No. RN 2724238-01-9, Entered STN: 03 Nov 2021]. PNG media_image3.png 562 582 media_image3.png Greyscale RN 2724238-01-9 anticipates the instant claims wherein X and Y are O, n is 1, R1 and R4 are H, R2 ia aryl, R3 is aryl, R5 and R6 are H, R7 and R8 form a piperidine ring. Registry number 2724238-01-9 is available as prior art as of 03 Nov 2021, the day it was indexed into the CAS database. Regarding the compositions of claim 9, comprising the anticipatory compounds and an excipient, the Registry entry for Registry no. 2724238-01-9 discloses a mass solubility of 0 g/L, in unbuffered water at pH 7.00. This teaching of water anticipates the claimed composition, wherein the compounds are present with an excipient (i.e., water). See MPEP 2128: ELECTRONIC PUBLICATIONS AS PRIOR ART Status as a "Printed Publication" An electronic publication, including an on-line database or Internet publication, is considered to be a “printed publication” within the meaning of 35 U.S.C. 102(a) and (b) provided the publication was accessible to persons concerned with the art to which the document relates. See In re Wyer, 655 F.2d 221, 227, 210 USPQ 790, 795 (CCPA 1981) Since this date represents the date that each compound entered the CAS database on STN, this represents the date that each compound was made accessible to the public. The aforementioned compounds anticipate the instantly claimed compounds: It is further noted that for the purposes of determining if a reference is a “printed publication” for the purposes of 102(b), MPEP 2128 states the following: PNG media_image4.png 181 880 media_image4.png Greyscale where “prior art disclosures…on an on-line database are considered to be publicly available as of the date the item was publicly posted.” Since each of the database entries above lists the date that each compound was entered into the on-line database, the compounds were made publicly available as of that date in each citation, and the claims are anticipated. Conclusion 13. No claims are allowed. 14. Any inquiry concerning this communication or earlier communications from the examiner should be directed to Samantha Shterengarts whose telephone number is (571)270-5316. The examiner can normally be reached on Monday thru Thursday 9-6pm. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Mr. Adam Milligan can be reached on 571-270-7674. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of an application may be obtained from the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see http://pair-direct.uspto.gov. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative or access to the automated information system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /SAMANTHA L SHTERENGARTS/Primary Examiner, Art Unit 1623
Read full office action

Prosecution Timeline

Feb 02, 2024
Application Filed
Sep 09, 2026
Non-Final Rejection mailed — §102 (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

1-2
Expected OA Rounds
80%
Grant Probability
88%
With Interview (+8.0%)
2y 1m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1699 resolved cases by this examiner. Grant probability derived from career allowance rate.

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