Prosecution Insights
Last updated: April 19, 2026
Application No. 18/560,280

ETHACRYNIC ACID DERIVATIVES AS INHIBITORS OF MPRO PROTEASE AND SARS-COV-2 REPLICATION

Non-Final OA §102§103§112
Filed
Nov 10, 2023
Examiner
SCHMITT, MICHAEL J
Art Unit
1629
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
UNIVERSITE EUROMEDITERRANEENNE DE FES
OA Round
1 (Non-Final)
57%
Grant Probability
Moderate
1-2
OA Rounds
2y 10m
To Grant
79%
With Interview

Examiner Intelligence

Grants 57% of resolved cases
57%
Career Allow Rate
363 granted / 640 resolved
-3.3% vs TC avg
Strong +22% interview lift
Without
With
+22.2%
Interview Lift
resolved cases with interview
Typical timeline
2y 10m
Avg Prosecution
34 currently pending
Career history
674
Total Applications
across all art units

Statute-Specific Performance

§101
4.0%
-36.0% vs TC avg
§103
36.7%
-3.3% vs TC avg
§102
16.6%
-23.4% vs TC avg
§112
18.8%
-21.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 640 resolved cases

Office Action

§102 §103 §112
DETAILED ACTION Claims 1-12 are pending. 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 The instant application, filed 11/10/2023 is a National Stage entry of PCT/MA2022/000005, with an International Filing Date of 5/10/2022 and claims foreign priority to 53521, filed 5/12/2021. Information Disclosure Statement The Information Disclosure Statement (IDS) submitted on 11/10/2023 is in compliance with the provisions of 37 CFR 1.97. Accordingly, the Information Disclosure Statement is being considered by the Examiner. 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 2 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 2 is directed to a list of compounds “according to claim 1,” and several compounds cannot be derived from either formula (I) or (II) of claim 1. There is insufficient antecedent basis (and not further limiting (112(d))) for this limitation in the claim. The following compounds are not derived from claim 1: PNG media_image1.png 164 286 media_image1.png Greyscale PNG media_image2.png 152 442 media_image2.png Greyscale PNG media_image3.png 146 422 media_image3.png Greyscale PNG media_image4.png 164 378 media_image4.png Greyscale PNG media_image5.png 168 368 media_image5.png Greyscale PNG media_image6.png 152 344 media_image6.png Greyscale PNG media_image7.png 158 330 media_image7.png Greyscale PNG media_image8.png 154 296 media_image8.png Greyscale This rejection can be overcome simply by removing these compounds from the dependent format (under claim 1) and claiming them independently in a new claim. 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. Claims 1-7 and 8-12 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. A broad range or limitation together with a narrow range or limitation that falls within the broad range or limitation (in the same claim) may be considered indefinite if the resulting claim does not clearly set forth the metes and bounds of the patent protection desired. See MPEP § 2173.05(c). In the present instance, claim 1 recites the broad recitation and then narrows the claim by stating “preferably” to a smaller range when limiting “U.” This is a narrower statement of the range/limitation. The claim(s) are considered indefinite because there is a question or doubt as to whether the feature introduced by such narrower language is (a) merely exemplary of the remainder of the claim, and therefore not required, or (b) a required feature of the claims. Applicant can overcome this rejection simple by drafting a new claim to the narrower range in a dependent claim. 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. Claims 8 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. Attempts to claim a process without setting forth any steps involved in the process generally raises an issue of indefiniteness under 35 U.S.C. 112(b) or pre-AIA 35 U.S.C. 112, second paragraph. For example, a claim which read: "[a] process for using monoclonal antibodies of claim 4 to isolate and purify human fibroblast interferon" was held to be indefinite because it merely recites a use without any active, positive steps delimiting how this use is actually practiced. Ex parte Erlich, 3 USPQ2d 1011 (Bd. Pat. App. & Inter. 1986). Claim 8 simply required “providing” as the only method step. This step is simply refereeing to moving an object in space, translocation. This step merely recites a use without any active, positive steps delimiting how this use is actually practiced. Claim Interpretation Claims 3-7 and 9-10 all recite an intended use of the claimed invention. Since this recitation does not result in a structural difference between the claimed invention and the prior art it is not patentably distinguished from the prior art. Therefore the prior art structure is capable of performing the intended use, therefore it meets the claim limitation. Claim 3 states, “[t]he compound…. for application as a drug.” This doesn’t change the structure of the compound. This is true for claim 4, “for application and as a drug for treatment of COVID-19 disease.” For claim 5, “for application and as a drug for treatment of pathologies caused by 3-coronaviruses.” For claim 6, “for application in vitro for inhibiting SARS-CoV-2 replication.” For claim 7, “for application in vitro for inhibiting MPr0 protease.” For claim 9, “for use as an active principle in pharmaceutical compositions.” And for claim 10, “for use in combination with other drugs in pharmaceutical compositions.” Claim Rejections - 35 USC § 102 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 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. Claim 2 is rejected under 35 U.S.C. 102(a)(1) as being anticipated by CAS Registry number 1860779-88-9 entered into the database on 2/5/2016. The compound below is P35 in claim 2. PNG media_image9.png 496 758 media_image9.png Greyscale Claim 2 is anticipated. Claim Rejections - 35 USC § 102 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 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. Claims 1, 3-7, and 9-11 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by CAS Registry number 1130160-87-0 entered into the database on 3/31/2009. PNG media_image10.png 430 754 media_image10.png Greyscale Claims 1, 3-7, and 9-11 are anticipated. Claim Rejections - 35 USC § 102 Claims 1, 3-7, and 9-12 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by CAS Registry number 851698-47-0 entered into the database on 6/6/2005. PNG media_image11.png 411 772 media_image11.png Greyscale Claims 1, 3-7, and 9-11 are anticipated. 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. The factual inquiries for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. This application currently names joint inventors. In considering patentability of the claims the examiner presumes that the subject matter of the various claims was commonly owned as of the effective filing date of the claimed invention(s) absent any evidence to the contrary. Applicant is advised of the obligation under 37 CFR 1.56 to point out the inventor and effective filing dates of each claim that was not commonly owned as of the effective filing date of the later invention in order for the examiner to consider the applicability of 35 U.S.C. 102(b)(2)(C) for any potential 35 U.S.C. 102(a)(2) prior art against the later invention. Claims 1 and 3-11 are rejected under 35 U.S.C. 103 as being unpatentable over CAS Registry number 851698-47-0 entered into the database on 6/6/2005 and the printed matter doctrine. Claims 1, 3-7, and 9-11 are anticipated by the chemical compound found in the CAS Registry. The CAS Registry doesn’t teach the addition of a “label” and “providing” the compound. The only active step in the claim is “providing” the compound. There is not additional information to the method. The compound is simply a labeled compound that is “provided.” Given this the claim is found obvious as the “label” is considered “nonfunctional descriptive matter.” MPEPE 2111.05 Functional and Nonfunctional Descriptive Material [R-07.2022] USPTO personnel must consider all claim limitations when determining patentability of an invention over the prior art. In re Gulack, 703 F.2d 1381, 1385, 217 USPQ 401, 403-04 (Fed. Cir. 1983). Since a claim must be read as a whole, USPTO personnel may not disregard claim limitations that include printed matter. See Id. at 1384, 217 USPQ at 403; see also Diamond v. Diehr, 450 U.S. 175, 191, 209 USPQ 1, 10 (1981). The first step of the printed matter analysis is the determination that the limitation in question is in fact directed toward printed matter. "Our past cases establish a necessary condition for falling into the category of printed matter: a limitation is printed matter only if it claims the content of information." See In re DiStefano, 808 F.3d 845, 848, 117 USPQ2d 1265, 1267 (Fed. Cir. 2015). "[O]nce it is determined that the limitation is directed to printed matter, [the examiner] must then determine if the matter is functionally or structurally related to the associated physical substrate, and only if the answer is ‘no’ is the printed matter owed no patentable weight." Id. at 850, 117 USPQ2d at 1268. If a new and nonobvious functional relationship between the printed matter and the substrate does exist, the examiner should give patentable weight to printed matter. See In re Lowry, 32 F.3d 1579, 1583-84, 32 USPQ2d 1031, 1035 (Fed. Cir. 1994); In re Ngai, 367 F.3d 1336, 70 USPQ2d 1862 (Fed. Cir. 2004); In re Gulack, 703 F.2d 1381, 1385, 217 USPQ 401, 403-04 (Fed. Cir. 1983). The rationale behind the printed matter cases, in which, for example, written instructions are added to a known product, has been extended to method claims in which an instructional limitation is added to a method known in the art. Similar to the inquiry for products with printed matter thereon, in such method cases the relevant inquiry is whether a new and nonobvious functional relationship with the known method exists. See In re DiStefano, 808 F.3d 845, 117 USPQ2d 1265 (Fed. Cir. 2015); In re Kao, 639 F.3d 1057, 1072-73, 98 USPQ2d 1799, 1811-12 (Fed. Cir. 2011); King Pharmaceuticals Inc. v. Eon Labs Inc., 616 F.3d 1267, 1279, 95 USPQ2d 1833, 1842 (Fed. Cir. 2010). Given the label does not perform a function, and the label, the printed matter and product do not depend upon each other, no functional relationship exists. Therefore this claim is prima facie obvious at the time of filing. Conclusion No claims allowed. Any inquiry concerning this communication or earlier communications from the examiner should be directed to MICHAEL J SCHMITT whose telephone number is (571)270-7047. The examiner can normally be reached M-F 8-6 MidDay Flex. 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 Lundgren can be reached at 571-272-5541. 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 J SCHMITT/Examiner, Art Unit 1629 /JEFFREY S LUNDGREN/Supervisory Patent Examiner, Art Unit 1629
Read full office action

Prosecution Timeline

Nov 10, 2023
Application Filed
Feb 17, 2026
Non-Final Rejection — §102, §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

1-2
Expected OA Rounds
57%
Grant Probability
79%
With Interview (+22.2%)
2y 10m
Median Time to Grant
Low
PTA Risk
Based on 640 resolved cases by this examiner. Grant probability derived from career allow rate.

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