Prosecution Insights
Last updated: May 29, 2026
Application No. 18/041,241

QUORUM SENSING INHIBITORS AND METHODS OF USE

Final Rejection §102
Filed
Feb 10, 2023
Priority
Aug 13, 2020 — provisional 63/064,965 +1 more
Examiner
OTTON, ALICIA L
Art Unit
1699
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
The Trustees of Indiana University
OA Round
2 (Final)
65%
Grant Probability
Favorable
3-4
OA Rounds
0m
Est. Remaining
74%
With Interview

Examiner Intelligence

Grants 65% — above average
65%
Career Allowance Rate
821 granted / 1264 resolved
+5.0% vs TC avg
Moderate +9% lift
Without
With
+9.0%
Interview Lift
resolved cases with interview
Typical timeline
2y 7m
Avg Prosecution
37 currently pending
Career history
1297
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
34.5%
-5.5% vs TC avg
§102
24.4%
-15.6% vs TC avg
§112
13.6%
-26.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1264 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 . Response to Remarks and Amendments Applicant’s response and amendments filed January 14, 2026 have been entered and are considered herein. Any rejection not reiterated herein is withdrawn. With respect to the rejection of claims 46-48, 50, 52, 54-55 and 58 under 35 USC 102(a)(1), the rejection is withdrawn in view of the claim amendments to specify that when R2 is 5-chlorothiophen-2-yl, R1 is not 1H=pyrazol-1-yl, as well as to remove the anticipatory compound from the list recited in claim 52. Election/Restrictions In accordance with the MPEP, 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 and the claims drawn to the elected species are allowable, 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. As indicated in the previous action, the Examiner searched the claims based on the elected species, wherein no prior art was found for the elected species. Accordingly, the scope of the search and examination was expanded further in accordance with MPEP 803.02 to include the compounds described in the rejections set forth in the previous action. In view of the claim amendment, the scope of the search and consideration is again expanded to include the additional species described in the rejection herein. Status of Claims Currently, claims 46, 48-60, 62-75, and 77-90 are pending in the instant application. Claims 49, 51, 56-57, 59-60, 62-75 and 77-90 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. Claims 46, 48, 50, 52-55 and 58 read on the elected invention/species and therefore remain under consideration herein. Claim Objections Claims 52-53 are objected to for depending on a rejected base claim, but would be allowable if rewritten in independent form. 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. It is noted that with respect to the rejection below, for the purposes of determining if a reference is a “printed publication” for the purposes of 102(a)(1), MPEP 2128 states the following: PNG media_image1.png 99 480 media_image1.png Greyscale Specifically regarding electronic publications, such as online databases, as prior art the following is noted: PNG media_image2.png 78 750 media_image2.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 the database entries below list the dates that the compounds were entered into the on-line database, the compounds were made publicly available as of those dates in the citation, and the claims are anticipated. Claim(s) 46, 48, 50, 54-55 and 58 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by the STN Registry database entry for CAS RN 108128-27-4, which has an entry date of 16 May 1987. Since the entry date represents the date that the compound entered a publicly available database on STN, this represents the date that each compound was made accessible to the public. The STN Registry database entry listed above discloses the compound PNG media_image3.png 192 398 media_image3.png Greyscale , which reads on the claimed formula wherein one of R1 and R2 is pyrazole and the other is phenyl. With respect to the limitations of dependent claims 54, 55 and 58, "Products of identical chemical composition can not have mutually exclusive properties" (MPEP 2112.01(II)). A chemical composition and its properties are inseparable. Therefore, if the prior art teaches the identical chemical structure as that recited in the claim, 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)). Even if that property (i.e. inhibitory activity) is not disclosed in the prior art, if the chemical structure is identical, the art need not recognize every property of the compound in order to render it unpatentable. In accordance with MPEP 2112, “[T]he discovery of a previously unappreciated property of a prior art composition, or of a scientific explanation for the prior art’s functioning, does not render the old composition patentably new to the discoverer.” Atlas Powder Co. v. Ireco Inc., 190 F.3d 1342, 1347, 51 USPQ2d 1943, 1947 (Fed. Cir. 1999). Thus the claiming of a new use, new function or unknown property which is inherently present in the prior art does not necessarily make the claim patentable. In re Best, 562 F.2d 1252, 1254, 195 USPQ 430, 433 (CCPA 1977). Since the compound disclosed in the prior art has the same structure as the instantly claimed compound, each and every required element of the claim is taught and the claim is anticipated. Accordingly, the claims are anticipated. Conclusion No claims are allowed. Any inquiry concerning this communication or earlier communications from the examiner should be directed to Alicia L. Otton whose telephone number is (571)270-7683. The examiner can normally be reached on Monday - Thursday, 8:00-6:00. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Mr. Fereydoun Sajjadi can be reached on 571-272-0699. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. 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. 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. /ALICIA L OTTON/Primary Examiner, Art Unit 1699
Read full office action

Prosecution Timeline

Feb 10, 2023
Application Filed
Nov 03, 2025
Non-Final Rejection mailed — §102
Jan 14, 2026
Response Filed
May 13, 2026
Final Rejection mailed — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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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
65%
Grant Probability
74%
With Interview (+9.0%)
2y 7m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 1264 resolved cases by this examiner. Grant probability derived from career allowance rate.

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