Prosecution Insights
Last updated: August 06, 2026
Application No. 18/249,993

NITROGEN-CONTAINING HETEROCYCLIC COMPOUND, METHOD FOR PREPARING SAME AND USE OF SAME

Final Rejection §112
Filed
Apr 21, 2023
Priority
May 24, 2021 — CN 202110567504.1 +3 more
Examiner
CHICKS, ASHLI ARIANA
Art Unit
1626
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Yingli Pharma (Bvi) Limited
OA Round
2 (Final)
63%
Grant Probability
Moderate
3-4
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 63% of resolved cases
63%
Career Allowance Rate
55 granted / 87 resolved
+3.2% vs TC avg
Strong +46% interview lift
Without
With
+45.9%
Interview Lift
resolved cases with interview
Typical timeline
3y 4m
Avg Prosecution
49 currently pending
Career history
117
Total Applications
across all art units

Statute-Specific Performance

§101
1.7%
-38.3% vs TC avg
§103
28.6%
-11.4% vs TC avg
§102
22.3%
-17.7% vs TC avg
§112
24.2%
-15.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 87 resolved cases

Office Action

§112
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 . Claim Status Claims 8-11 and 14 are pending. Claims 8-10 and 14 are allowed. Claim 11 is rejected. Response to Amendment Applicant’s amendments have overcome the previously presented objections and/or rejections over claims 8-10 and 14. Claim 11 is rejected as set forth below. Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(d): (d) REFERENCE IN DEPENDENT FORMS.—Subject to subsection (e), a claim in dependent form shall contain a reference to a claim previously set forth and then specify a further limitation of the subject matter claimed. A claim in dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers. The following is a quotation of pre-AIA 35 U.S.C. 112, fourth paragraph: Subject to the following paragraph [i.e., the fifth paragraph of pre-AIA 35 U.S.C. 112], a claim in dependent form shall contain a reference to a claim previously set forth and then specify a further limitation of the subject matter claimed. A claim in dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers. Claim 11 is rejected under 35 U.S.C. 112(d) or pre-AIA 35 U.S.C. 112, 4th paragraph, as being of improper dependent form for failing to further limit the subject matter of the claim upon which it depends, or for failing to include all the limitations of the claim upon which it depends. Claim 11 recites compounds outside of the scope of independent claim 8 such as the following which possess substituents or heteroatoms on the ring corresponding to PNG media_image1.png 140 296 media_image1.png Greyscale which are not provided for. For an example of improper substituents: PNG media_image2.png 204 866 media_image2.png Greyscale ,etc. For an example of unprovided for heteroatoms: PNG media_image3.png 192 204 media_image3.png Greyscale , PNG media_image4.png 200 210 media_image4.png Greyscale , etc. Applicant may cancel the claim(s), amend the claim(s) to place the claim(s) in proper dependent form, rewrite the claim(s) in independent form, or present a sufficient showing that the dependent claim(s) complies with the statutory requirements. Closest Prior Art Regarding instant claims 8, 9, and 11 the closest prior art is WO 2021231526 A1 by Hoang et al. The prior art discloses the following compound on page 72: PNG media_image5.png 292 686 media_image5.png Greyscale . The prior art compound is analogous to compounds of instant formula III where R1 is naphthyl, L2 is -O(RL-1)n1-, RL-1 is C3 alkylene, n1 is 1, and R3 is 5-membered heterocycle containing 1 N heteroatom substituted by one R3-2, R3-2 is C1 alkyl. The prior art differs from the instant compounds in that it lacks the alkyl substituent represented by R4 and has a vinyl substituent for R2 where the instant claims only allow for -CN, C1-3 alkyl or halogen. Regarding instant claim 11, Hoang et al. disclose the following compound on page 68: PNG media_image6.png 364 668 media_image6.png Greyscale . The prior art compound is analogous to instant compound 25 however it contains a vinyl substituent where the instant compound is unsubstituted: PNG media_image7.png 174 216 media_image7.png Greyscale . Hoang et al. provide no motivation or guidance for preparing the prior art compounds without the vinyl substituents therefore, the prior art neitehr anticipates nor renders obvious the instant claims. The closest prior art with regards to instant claim 10 is WO 2022/047093 A1 which discloses the compound of Example 11 shown below (pages 99-100): PNG media_image8.png 278 296 media_image8.png Greyscale . The prior art compound is analogous to compounds of instant formula IV where R1 is naphthyl substituted by R1-1, R1-1 is -ORc, Rc is hydrogen, L2 is -O(RL-1)n1-, RL-1 is C3 alkylene, n1 is 1, and R3 is 5-membered heterocycle containing 1 N heteroatom substituted by one R3-2, R3-2 is C1 alkyl. The prior art differs from the instant compounds in that it lacks the alkyl substituent represented by R4 has a vinyl substituent for R2 where the instant claims only allow for -CN, C1-3 alkyl or halogen, and has two halogen substituents on the quinazoline ring. An additional relevant reference is WO 2022/248885 A2 which discloses the following compound that is identical to compound 48 of instant claim 11 (page 33): PNG media_image9.png 204 254 media_image9.png Greyscale . This disclosure does not anticipate the instant claims as the WIPO was filed May 27th, 2022 and the compound above was not disclosed in the priority documents. Allowable Subject Matter Claims 8-10 and 14 are allowed. 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 ASHLI A CHICKS whose telephone number is (571)270-0582. The examiner can normally be reached M-Th 7 a.m.- 5 p.m.. 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, James H Alstrum-Acevedo can be reached at (571)272-5548. 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. /A.A.C./Examiner, Art Unit 1626 /MATTHEW P COUGHLIN/Primary Examiner, Art Unit 1626
Read full office action

Prosecution Timeline

Apr 21, 2023
Application Filed
May 05, 2026
Non-Final Rejection mailed — §112
May 12, 2026
Response Filed
Jul 27, 2026
Final Rejection mailed — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12679842
HCK AS A THERAPEUTIC TARGET IN MYD88 MUTATED DISEASES
4y 3m to grant Granted Jul 14, 2026
Patent 12662470
HYDROXY AND (HALO)ALKOXY SUBSTITUTED TETRAHYDROFURANS AS MODULATORS OF SODIUM CHANNELS
2y 6m to grant Granted Jun 23, 2026
Patent 12653808
COMPOUNDS FOR TREATING MULTIPLE MYELOMA
5y 0m to grant Granted Jun 16, 2026
Patent 12612426
Aryl Glucoside Derivative
3y 2m to grant Granted Apr 28, 2026
Patent 12612382
PROCESS FOR PREPARING 6-SUBSTITUTED-1-(2H)-ISOQUINOLINONES AND INTERMEDIATE COMPOUND
2y 0m to grant Granted Apr 28, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.
Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

3-4
Expected OA Rounds
63%
Grant Probability
99%
With Interview (+45.9%)
3y 4m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 87 resolved cases by this examiner. Grant probability derived from career allowance rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month