Prosecution Insights
Last updated: October 04, 2026
Application No. 17/594,754

PHTHALAZINONE COMPOUNDS AND USE THEREOF

Final Rejection §102
Filed
Oct 28, 2021
Priority
May 29, 2019 — RE 10-2019-0063436 +1 more
Examiner
SHTERENGARTS, SAMANTHA L
Art Unit
1623
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Korea Research Institute of Chemical Technology
OA Round
2 (Final)
80%
Grant Probability
Favorable
3-4
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
58 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 Response to Amendments Amendments filed July 13, 2026 are acknowledged. Any rejections not explicitly maintained herein are withdrawn. Election/Restrictions 3. 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. Status of Claims 4. Claims 1 and 3-15 are pending in the instant application. Claims 3-9 and 11-13 are withdrawn from further consideration pursuant to 37 CFR 1.142(b), as being drawn to a non-elected invention and species.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, 10, and 14-15 read on an elected invention and species and are therefore under consideration in the instant application. 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 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. 5. The following is a quotation of the appropriate paragraphs of pre-AIA 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. 6. Claims 1, 10, and 14-15 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by CAS Registry Number: RN 2181966-84-5. [Database Registry Chemical Abstracts Service, Columbus, Ohio, Accession No. RN 2181966-84-5, Entered STN: 01 Mar 2018]. PNG media_image1.png 474 596 media_image1.png Greyscale Registry number 2181966-84-5 is available as prior art as of 01 Mar 2018, the date it was indexed into the CAS database. Registry number 2181966-84-5 anticipates compounds of formula 1 wherein X is CH, R1 is H, R2 is aryl/phenyl, and R3 is piperidine. Regarding the compositions of claims 14-15, comprising the anticipatory compounds and an excipient, the Registry entry for Registry no. 2181966-84-5 discloses a mass solubility of 0 g/L, in unbuffered water at pH 7.008. This teaching of water anticipates the claimed composition, wherein the compounds are present with an excipient (i.e., water). Regarding the limitations “for preventing or treating a Sirt6-related disease” “wherein the sirt6-related disease is selected from the grop consisting of a cancer, fatty liver…”– it is noted that these claims merely recite properties of the anticipated compositions. “Products of an identical chemical composition cannot have mutually exclusive properties.” Therefore, if the prior art teaches the identical chemical structure, the properties applicant discloses and/or claims are necessarily present. In re Spada, 911 F. 2d 705, 709, 15 USPQd 1655, 1658 (Fed. Cir. 1990). Since the prior art teaches a product of identical chemical composition to that claimed, and the application discloses that all of the claimed compositions have the claimed properties, these limitations are also anticipated. Since the prior art teaches the identical chemical structure, the properties applicant claims are necessarily present. In re Spada, 911 F. 2d 705, 709, 15 USPQd 1655, 1658 (Fed. Cir. 1990). Since the prior art teaches a product of identical chemical composition to that claimed, and the application discloses that all of the claimed compositions have the claimed properties and no additional components are claimed (such as an excipient, adjuvant, carrier, etc.), these limitations are also anticipated. The claimed compositions are anticipated by the prior art with no additional components. Therefore, the claims are anticipated by the aforementioned compositions, capable of being used with the claimed intended uses of as described herein. MPEP 2111.02(II) provides the following instruction for interpreting the preamble of a claim: “During examination, statements in the preamble reciting the purpose or intended use of the claimed invention must be evaluated to determine whether the recited purpose or intended use results in a structural difference (or, in the case of process claims, manipulative difference) between the claimed invention and the prior art. If so, the recitation serves to limit the claim.” If a prior art structure is capable of performing the intended use as recited in the preamble, then it meets the claim. See, e.g., In re Schreiber, 128 F.3d 1473, 1477, 44 USPQ2d 1429, 1431 (Fed. Cir. 1997). Since the compositions taught by the prior art do not have any structural difference from the claimed compositions and the prior art compositions are capable of the intended uses, those limitations are also anticipated, as discussed herein. 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 CAPlus 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_image2.png 99 480 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 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 8. No claims allowed. 9. 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. 10. THIS ACTION IS MADE FINAL. 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 extension fee 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. /SAMANTHA L SHTERENGARTS/Primary Examiner, Art Unit 1623
Read full office action

Prosecution Timeline

Oct 28, 2021
Application Filed
Jan 23, 2026
Non-Final Rejection (signed) — §102
Mar 11, 2026
Non-Final Rejection mailed — §102
Jul 13, 2026
Response Filed
Sep 21, 2026
Interview Requested
Sep 23, 2026
Final Rejection mailed — §102 (current)

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Prosecution Projections

3-4
Expected OA Rounds
80%
Grant Probability
88%
With Interview (+8.0%)
2y 1m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 1699 resolved cases by this examiner. Grant probability derived from career allowance rate.

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