Prosecution Insights
Last updated: April 19, 2026
Application No. 18/009,899

BENZO FIVE-MEMBERED NITROGEN HETEROCYCLIC COMPOUND AND APPLICATION THEREOF

Non-Final OA §102§112
Filed
Dec 12, 2022
Examiner
WILSON, JERICA KATLYNN
Art Unit
1621
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Guangzhou Institutes Of Biomedicine And Health Chinese Academy Of Sciences
OA Round
1 (Non-Final)
61%
Grant Probability
Moderate
1-2
OA Rounds
3y 3m
To Grant
99%
With Interview

Examiner Intelligence

Grants 61% of resolved cases
61%
Career Allow Rate
57 granted / 94 resolved
+0.6% vs TC avg
Strong +40% interview lift
Without
With
+39.5%
Interview Lift
resolved cases with interview
Typical timeline
3y 3m
Avg Prosecution
39 currently pending
Career history
133
Total Applications
across all art units

Statute-Specific Performance

§101
1.8%
-38.2% vs TC avg
§103
34.4%
-5.6% vs TC avg
§102
18.6%
-21.4% vs TC avg
§112
27.4%
-12.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 94 resolved cases

Office Action

§102 §112
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 . DETAILED ACTION Claims 1-7, 12, and 15-20 are pending in the instant application. Claims 2, 5, and 15-20 are withdrawn from consideration. Claims 1, 3-4, 6-7, and 12 are examined herein. Priority The instant application claims benefit of foreign priority to CN202010663949.5, filed on 10 July 2020 and the benefit of priority to PCT/CN2020/113949, filed on 08 September 2020. The claims to the benefit of priority are acknowledged. As such, the effective filing date of the claims is 10 July 2020. Information Disclosure Statement The information disclosure statements (IDS), submitted on 14 February 2023, 02 March 2023, 06 March 2023, 21 November 2023, and 20 August 2024, are acknowledged and considered. The submissions are in compliance with the provisions of 37 CFR 1.97. Response to Election/Restrictions Applicant’s election of Group I, claims 1-7 and 12, without traverse, in the reply filed on 13 October 2025 is acknowledged. In addition the specie election of (S)-2-(4-(ethylsulfonyl)phenyl)-N-(4-(1-(1-(4-fluorophenyl)ethyl)-6-(trifluoromethyl)-1H-benzo[d]imidazol-2-yl)phenyl)acetamide (pictured below), which reads on claims 1, 3, 5-7, and 12, is acknowledged. PNG media_image1.png 182 286 media_image1.png Greyscale If the elected species is not identified in the art, the search will be expanded to additional species per MPEP 802.03. The elected species was not found in the art and the search was expanded to additional species. Particularly, example 1, 4-methyl-N-(4-(6-methylbenzo[d]thiazol-2-yl)phenyl)benzenesulfonamide; example 3, 4-fluoro-N-(4-(6-methylbenzo[d]thiazol-2-yl)phenyl)benzenesulfonamide; and example 5, N-(4-(6-methylbenzo[d]thiazol-2-yl)phenyl)-3-nitrobenzenesulfonamide. The additional species read on claims 1, 3-4, 6-7, and 12. Claims 2, 5, and 15-20 are withdrawn for not reading on the elected group and expanded species. Claim Rejections - 35 USC § 112 The following is a quotation of the first paragraph of 35 U.S.C. 112(a): (a) IN GENERAL.—The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor or joint inventor of carrying out the invention. The following is a quotation of the first paragraph of pre-AIA 35 U.S.C. 112: The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor of carrying out his invention. Claim 7 is rejected under 35 U.S.C. 112(a) or 35 U.S.C. 112 (pre-AIA ), first paragraph, as failing to comply with the written description requirement. The claim(s) contains subject matter which was not described in the specification in such a way as to reasonably convey to one skilled in the relevant art that the inventor or a joint inventor, or for applications subject to pre-AIA 35 U.S.C. 112, the inventor(s), at the time the application was filed, had possession of the claimed invention. Claim 7 recites the pharmaceutically acceptable salt, isomer, racemate, prodrug, co-crystal complex or solvate of a compound of claim 1. The applicant provides no examples of a prodrug. One of ordinary skill in the art would was not in possession of the full scope as claimed, ie. “prodrug”. The specification only defines a prodrug, it does not establish the applicant was in the possession of the knowledge of which prodrugs would or would not provide the prodrug function. Strickley et al. (Formulation Challenges of Prodrugs. Prodrugs. 2007. Chapter 4.1.2. 383-410) discuss several formulation challenges presented with prodrugs, namely; chemical stability, reactive by-products, solubility, and polymorphism. Experimentation is required to make successful prodrug, or in order to establish a structure/function correlation. The specification does not provide structural definitions of a prodrug, or points of attachment to Formula I; both of which can alter the functionality of the drug. Additionally, the specification does not provide any structure-function correlation to support the bounds of a functional prodrug of Formula I; nor is a representative number of species presented as the specification does not provide any examples. Overall, the lack of a required written description suggests the applicant is not in possession of a functional prodrug of a compound of Formula I. In conclusion, there is no structure-function correlation between what is and what is not a functional prodrug in the specification. Based on the work of Strickley, prodrugs are unpredictable, without the correlation between structure and function or an adequate representation of species functioning as a prodrug, the instant invention fails to comply with the written description requirement. Claim Rejections - 35 USC § 112 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 3 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. Regarding claim 3, the phrase "preferably" renders the claim indefinite because it is unclear whether the limitation(s) following the phrase are part of the claimed invention. See MPEP § 2173.05(d). 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(s) 1 and 3-6 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Riesz (Revista Facultad de Humanidades y Ciencias.1947;1(1):305-314). Regarding claim 1, Riesz teaches the compound N-[4-(6-methyl-2-benzothiazolyl)phenyl]-4-nitro-benzenesulfonamide (pictured below from the STN search). This is a species of instant Formula (I) when X is –(SO2)-, Y is CR5, Z is S, R1 is C6 aryl substituted with 1 R11, R2 is H, R3 is H, R4 is H, R5 is H, R6 is H, R7 is H, R8 is C1 alkyl, R9 is H, and R11 is nitro. PNG media_image2.png 240 730 media_image2.png Greyscale Regarding claim 3, Riesz teaches the substituent corresponding to the instant R11 is nitro. Regarding claim 4, Riesz teaches the compound N-[4-(6-methyl-2-benzothiazolyl)phenyl]-4-nitro-benzenesulfonamide (pictured above from the STN search). This is a species of instant Formula (II) when X is –(SO2)-, Y is CR5, R1 is C6 aryl substituted with 1 R11, R2 is H, R3 is H, R4 is H, R5 is H, R6 is H, R7 is H, R8 is C1 alkyl, R9 is H, and R11 is nitro. Regarding claim 6, Riesz teaches the fifth listed compound of claim 6, and example 5 in the specification. Claim(s) 1, 3-4, and 6 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Stevens et al. (WO2003004479A1). Regarding claim 1, Stevens discloses the compound 4-methyl-N-(4-(6-methylbenzo[d]thiazol-2-yl)phenyl)benzenesulfonamide (pictured below from page 87, scheme 10). This is a species of instant Formula (I) when X is –(SO2)-, Y is CR5, Z is S, R1 is C6 aryl substituted with 1 R11, R2 is H, R3 is H, R4 is H, R5 is H, R6 is H, R7 is H, R8 is C1 alkyl, R9 is H, and R11 is C1 alkyl. PNG media_image3.png 144 262 media_image3.png Greyscale Regarding claim 3, Stevens discloses the substituent corresponding to the instant R11 is C1 alkyl. Regarding claim 4, Stevens discloses the compound 4-methyl-N-(4-(6-methylbenzo[d]thiazol-2-yl)phenyl)benzenesulfonamide (pictured above from page 87, scheme 10). This is a species of instant Formula (I) when X is –(SO2)-, Y is CR5, R1 is C6 aryl substituted with 1 R11, R2 is H, R3 is H, R4 is H, R5 is H, R6 is H, R7 is H, R8 is C1 alkyl, R9 is H, and R11 is C1 alkyl. Regarding claim 6, Stevens discloses the first listed compound of claim 6, and example 1 in the specification. Claim(s) 1, 3-4, and 6 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by RN 349624-72-2, created on 01 August 2001. Regarding claim 1, RN 349624-72-2 belongs to the compound 4-fluoro-N-(4-(6-methylbenzo[d]thiazol-2-yl)phenyl)benzenesulfonamide (pictured below from STN search). This is a species of instant Formula (I) when X is –(SO2)-, Y is CR5, Z is S, R1 is C6 aryl substituted with 1 R11, R2 is H, R3 is H, R4 is H, R5 is H, R6 is H, R7 is H, R8 is C1 alkyl, R9 is H, and R11 is C1 halogen. PNG media_image4.png 706 798 media_image4.png Greyscale Regarding claim 3, substituent corresponding to the instant R11 is halogen. Regarding claim 4, RN 349624-72-2 belongs to the compound 4-methyl-N-(4-(6-methylbenzo[d]thiazol-2-yl)phenyl)benzenesulfonamide (pictured above). This is a species of instant Formula (I) when X is –(SO2)-, Y is CR5, R1 is C6 aryl substituted with 1 R11, R2 is H, R3 is H, R4 is H, R5 is H, R6 is H, R7 is H, R8 is C1 alkyl, R9 is H, and R11 is halogen Regarding claim 6, RN 349624-72-2 is the third listed compound of claim 6, and example 3 in the specification. Claim(s) 1, 3-4, and 6 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by RN 909525-53-7, created on 04 October 2006. Regarding claim 1, RN 909525-53-7 belongs to the compound N-(4-(6-methylbenzo[d]thiazol-2-yl)phenyl)-4-( trifluoromethoxy) benzenesulfonamide (pictured below from STN search). This is a species of instant Formula (I) when X is –(SO2)-, Y is CR5, Z is S, R1 is C6 aryl substituted with 1 R11, R2 is H, R3 is H, R4 is H, R5 is H, R6 is H, R7 is H, R8 is C1 alkyl, R9 is H, and R11 is C1 carbalkoxy substituted with at least one halogen. PNG media_image5.png 712 760 media_image5.png Greyscale Regarding claim 3, substituent corresponding to the instant R11 is C1 carbalkoxy substituted with at least one halogen. Regarding claim 4, RN 909525-53-7 belongs to the compound N-(4-(6-methylbenzo[d]thiazol-2-yl)phenyl)-4-( trifluoromethoxy) benzenesulfonamide (pictured above). This is a species of instant Formula (I) when X is –(SO2)-, Y is CR5, R1 is C6 aryl substituted with 1 R11, R2 is H, R3 is H, R4 is H, R5 is H, R6 is H, R7 is H, R8 is C1 alkyl, R9 is H, and R11 is C1 carbalkoxy substituted with at least one halogen. Regarding claim 6, RN 909525-53-7 is the fourth listed compound of claim 6, and example 4 in the specification. Claim(s) 1, 3-4, and 6 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by RN 1116042-18-2, created on 05 March 2009. Regarding claim 1, 1116042-18-2 belongs to the compound N-(4-(6-methylbenzo[d]thiazol-2-yl)phenyl)-1-(p-tolyl)methanesulfonamide (pictured below from STN search). This is a species of instant Formula (I) when X is –(SO2)-, Y is CR5, Z is S, R1 is C6 aryl C1 alkyl substituted with 1 R11, R2 is H, R3 is H, R4 is H, R5 is H, R6 is H, R7 is H, R8 is C1 alkyl, R9 is H, and R11 is C1 alkyl. PNG media_image6.png 656 824 media_image6.png Greyscale Regarding claim 3, substituent corresponding to the instant R11 is C1 alkyl. Regarding claim 4, RN 1116042-18-2 belongs to the compound N-(4-(6-methylbenzo[d]thiazol-2-yl)phenyl)-1-(p-tolyl)methanesulfonamide (pictured above). This is a species of instant Formula (I) when X is –(SO2)-, Y is CR5, R1 is C6 aryl C1 alkyl substituted with 1 R11, R2 is H, R3 is H, R4 is H, R5 is H, R6 is H, R7 is H, R8 is C1 alkyl, R9 is H, and R11 is C1 alkyl. Regarding claim 6, RN 1116042-18 is the twelfth listed compound of claim 6, and example 12 in the specification. Claim(s) 1, 3-4, and 6 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by RN 2199951-86-3, created on 27 March 2018. Regarding claim 1, RN 2199951-86-3 belongs to the compound 1-(4-fluorophenyl)-N-(4-(6-methylbenzo[d]thiazol-2-yl )phenyl)methanesulfonamide (pictured below from STN search). This is a species of instant Formula (I) when X is –(SO2)-, Y is CR5, Z is S, R1 is C6 aryl C1 alkyl substituted with 1 R11, R2 is H, R3 is H, R4 is H, R5 is H, R6 is H, R7 is H, R8 is C1 alkyl, R9 is H, and R11 is halogen. PNG media_image7.png 648 772 media_image7.png Greyscale Regarding claim 3, substituent corresponding to the instant R11 is halogen Regarding claim 4, RN 2199951-86-3 belongs to the compound 1-(4-fluorophenyl)-N-(4-(6-methylbenzo[d]thiazol-2-yl )phenyl)methanesulfonamide (pictured above). This is a species of instant Formula (I) when X is –(SO2)-, Y is CR5, R1 is C6 aryl C1 alkyl substituted with 1 R11, R2 is H, R3 is H, R4 is H, R5 is H, R6 is H, R7 is H, R8 is C1 alkyl, R9 is H, and R11 is halogen. Regarding claim 6, RN 2199951-86-3 is the thirteenth listed compound of claim 6, and example 13 in the specification. Claim(s) 1, 3-4, and 6 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by RN 941972-03-8, created on 10 July 2007. Regarding claim 1, RN 941972-03-8 belongs to the compound 2-(4-(Ethylsulfonyl)phenyl)-N-(4-(6-methylbenzo[d]thiazol-2-yl)phenyl)acetamide (pictured below from STN search). This is a species of instant Formula (I) when X is –(CO)-, Y is CR5, Z is S, R1 is C6 aryl C1 alkyl substituted with 1 R11, R2 is H, R3 is H, R4 is H, R5 is H, R6 is H, R7 is H, R8 is C1 alkyl, R9 is H, and R11 is C2 alkyl sulfonyl. PNG media_image8.png 678 778 media_image8.png Greyscale Regarding claim 3, substituent corresponding to the instant R11 is ethyl sulfonyl. Regarding claim 4, RN 941972-03-8 belongs to the compound 2-(4-(Ethylsulfonyl)phenyl)-N-(4-(6-methylbenzo[d]thiazol-2-yl)phenyl)acetamide (pictured above). This is a species of instant Formula (I) when X is –(CO)-, Y is CR5, R1 is C6 aryl C1 alkyl substituted with 1 R11, R2 is H, R3 is H, R4 is H, R5 is H, R6 is H, R7 is H, R8 is C1 alkyl, R9 is H, and R11 is C2 alkyl sulfonyl. Regarding claim 6, RN 941972-03-8 is the twenty fifth listed compound of claim 6, and example 25 in the specification. Claim(s) 1, 4, and 6 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by RN 546070-51-3, created on 11 July 2003. Regarding claim 1, RN 546070-51-3 belongs to the compound N-(4-(6-methylbenzo[d]thiazol-2-yl)phenyl)heptanamide (pictured below from STN search). This is a species of instant Formula (I) when X is –(CO)-, Y is CR5, Z is S, R1 is C7 alkyl substituted with 0 R11, R2 is H, R3 is H, R4 is H, R5 is H, R6 is H, R7 is H, R8 is C1 alkyl, and R9 is H. PNG media_image9.png 662 792 media_image9.png Greyscale Regarding claim 4, RN 546070-51-3 belongs to the compound N-(4-(6-methylbenzo[d]thiazol-2-yl)phenyl)heptanamide (pictured above). This is a species of instant Formula (I) when X is –(CO)-, Y is CR5, R1 is C7 alkyl substituted with 1 R11, R2 is H, R3 is H, R4 is H, R5 is H, R6 is H, R7 is H, R8 is C1 alkyl, R9 is H, and R11 is C2 alkyl sulfonyl. Regarding claim 6, RN 546070-51-3 is the twenty sixth listed compound of claim 6, and example 26 in the specification. Claim(s) 1, 3-4, and 6 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by RN 599163-10-7, created on 06 October 2003. Regarding claim 1, RN 599163-10-7 belongs to the compound 2-(4-(Ethylsulfonyl)phenyl)-N-(4-(6-methylbenzo[d]thiazol-2-yl)phenyl)acetamide (pictured below from STN search). This is a species of instant Formula (I) when X is –(CO)-, Y is CR5, Z is S, R1 is C6 aryl C1 alkyl substituted with 1 R11, R2 is H, R3 is H, R4 is H, R5 is H, R6 is H, R7 is H, R8 is C1 alkyl, R9 is H, and R11 is C1 alkyl. PNG media_image10.png 682 790 media_image10.png Greyscale Regarding claim 3, substituent corresponding to the instant R11 is C1 alkyl. Regarding claim 4, RN 599163-10-7 belongs to the compound N-(4-(6-methylbenzo[d]thiazol-2-yl)phenyl)-2-(p-tolyl)acetamide (pictured above). This is a species of instant Formula (I) when X is –(CO)-, Y is CR5, R1 is C6 aryl C1 alkyl substituted with 1 R11, R2 is H, R3 is H, R4 is H, R5 is H, R6 is H, R7 is H, R8 is C1 alkyl, R9 is H, and R11 is C1 alkyl. Regarding claim 6, RN 599163-10-7 is the twenty seventh listed compound of claim 6, and example 27 in the specification. Claim(s) 1, 3-4, and 6 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by RN 349440-23-9, created on 29 July 2001. Regarding claim 1, RN 349440-23-9 belongs to the compound N-(4-(6-methylbenzo[d]thiazol-2-yl)phenyl)-2-(2-nitrophenyl)acetamide (pictured below from STN search). This is a species of instant Formula (I) when X is –(CO)-, Y is CR5, Z is S, R1 is C6 aryl C1 alkyl substituted with 1 R11, R2 is H, R3 is H, R4 is H, R5 is H, R6 is H, R7 is H, R8 is C1 alkyl, R9 is H, and R11 is nitro. PNG media_image11.png 678 756 media_image11.png Greyscale Regarding claim 3, substituent corresponding to the instant R11 is nitro. Regarding claim 4, RN 349440-23-9 belongs to the compound N-(4-(6-methylbenzo[d]thiazol-2-yl)phenyl)-2-(2-nitrophenyl)acetamide (pictured above). This is a species of instant Formula (I) when X is –(CO)-, Y is CR5, R1 is C6 aryl C1 alkyl substituted with 1 R11, R2 is H, R3 is H, R4 is H, R5 is H, R6 is H, R7 is H, R8 is C1 alkyl, R9 is H, and R11 is nitro. Regarding claim 6, RN 349440-23-9 is the twenty eighth listed compound of claim 6, and example 28 in the specification. Claim(s) 1, 3-4, and 6 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by RN 349623-23-0, created on 01 August 2001. Regarding claim 1, RN 349623-23-0 belongs to the compound N-(4-(6-methylbenzo[d]thiazol-2-yl)phenyl)-2-nitrobenzenesulfonamide (pictured below from STN search). This is a species of instant Formula (I) when X is –(SO2)-, Y is CR5, Z is S, R1 is C6 aryl substituted with 1 R11, R2 is H, R3 is H, R4 is H, R5 is H, R6 is H, R7 is H, R8 is C1 alkyl, R9 is H, and R11 is nitro. PNG media_image12.png 674 776 media_image12.png Greyscale Regarding claim 3, substituent corresponding to the instant R11 is nitro. Regarding claim 4, RN 349623-23-0 belongs to the compound N-(4-(6-methylbenzo[d]thiazol-2-yl)phenyl)-2-nitrobenzenesulfonamide (pictured above). This is a species of instant Formula (I) when X is –(SO2)-, Y is CR5, R1 is C6 aryl substituted with 1 R11, R2 is H, R3 is H, R4 is H, R5 is H, R6 is H, R7 is H, R8 is C1 alkyl, R9 is H, and R11 is nitro. Regarding claim 6, RN 349623-23-0 is the seventh listed compound of claim 6, and example 7 in the specification. Claim(s) 1, 3-4, and 6 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by RN 3494624-08-4, created on 01 August 2001. Regarding claim 1, RN 349623-23-0 belongs to the 2,4,6-trimethyl-N-(4-(6-methylbenzo[d]thiazol-2-yl)phenyl)benzenesulfonamide (pictured below from STN search). This is a species of instant Formula (I) when X is –(SO2)-, Y is CR5, Z is S, R1 is C6 aryl substituted with 3 R11, R2 is H, R3 is H, R4 is H, R5 is H, R6 is H, R7 is H, R8 is C1 alkyl, R9 is H, and R11 is C1 alkyl PNG media_image13.png 678 762 media_image13.png Greyscale Regarding claim 3, substituent corresponding to the instant R11 is C1 alkyl. Regarding claim 4, RN 349623-23-0 belongs to the compound 2,4,6-trimethyl-N-(4-(6-methylbenzo[d]thiazol-2-yl)phenyl)benzenesulfonamide (pictured above). This is a species of instant Formula (I) when X is –(SO2)-, Y is CR5, R1 is C6 aryl substituted with 3 R11, R2 is H, R3 is H, R4 is H, R5 is H, R6 is H, R7 is H, R8 is C1 alkyl, R9 is H, and R11 is C1 alkyl. Regarding claim 6, RN 349623-23-0 is the tenth listed compound of claim 6, and example 10 in the specification. Conclusion Claims 1, 3-4, 6-7, and 12 are rejected. Any inquiry concerning this communication or earlier communications from the examiner should be directed to Jerica K Wilson whose telephone number is (703)756-4690. The examiner can normally be reached Monday-Friday 9:00-5:00. 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, Clinton Brooks can be reached at (571)270-7682. 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. /J.K.W./Examiner, Art Unit 1621 /CLINTON A BROOKS/Supervisory Patent Examiner, Art Unit 1621
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Prosecution Timeline

Dec 12, 2022
Application Filed
Oct 27, 2025
Non-Final Rejection — §102, §112 (current)

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1-2
Expected OA Rounds
61%
Grant Probability
99%
With Interview (+39.5%)
3y 3m
Median Time to Grant
Low
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