Prosecution Insights
Last updated: July 17, 2026
Application No. 18/837,245

EMOPAMIL-BINDING PROTEIN INHIBITORS AND USES THEREOF

Non-Final OA §112
Filed
Aug 09, 2024
Priority
Feb 14, 2022 — provisional 63/309,923 +1 more
Examiner
WHITE, DAWANNA SHAR-DAY
Art Unit
Tech Center
Assignee
Biogen Ma Inc.
OA Round
1 (Non-Final)
63%
Grant Probability
Moderate
1-2
OA Rounds
1y 6m
Est. Remaining
86%
With Interview

Examiner Intelligence

Grants 63% of resolved cases
63%
Career Allowance Rate
69 granted / 110 resolved
+2.7% vs TC avg
Strong +24% interview lift
Without
With
+23.6%
Interview Lift
resolved cases with interview
Typical timeline
3y 5m
Avg Prosecution
55 currently pending
Career history
158
Total Applications
across all art units

Statute-Specific Performance

§101
2.7%
-37.3% vs TC avg
§103
31.2%
-8.8% vs TC avg
§102
5.6%
-34.4% vs TC avg
§112
8.0%
-32.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 110 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 Objections Claim 1 is objected to because of the following informalities: spelling errors. In lines 7 and 9 of claim 1, the words “heterocycyl” should be replaced with “heterocyclyl. Appropriate correction is required. Claim 1 is objected to because of the following informalities: missing punctuation. A semicolon is missing between the phrase“-C1-3alkylene,” and “n is 0, 1, or 2,”. Appropriate correction is required. Claim 1 is objected to because of the following informalities: missing conjunction. A conjunction is missing between the phrase “m is 0, 1, or 2,” and “provided that the compound,”. Appropriate correction is required. Claim 37 is objected to because of the following informalities: missing conjunction. A conjunction is missing between the phrase “one to three R5b,” and “R5a is C1-3alkyl,”. Appropriate correction is required. Claim 39 is objected to because of the following informalities: missing conjunction. A conjunction is missing between the last two structures for option (iii) R3. Appropriate correction is required. Claims 43 and 45 are objected to because of the following informalities: status identifiers. Both claims 43 and 45 are missing the status identifiers describing the claims as being amended. Appropriate correction is required. Claim 89 is objected to because of the following informalities: duplicate chemical name. The chemical name, “(1S,4S)-5-((R)-8-((4-(difluoromethoxy)phenyl)sulfonyl)-8-azaspiro[4.5]decan-2-yl)-2-oxa-5-azabicyclo[2.2.1]heptane,” appears twice in the claim. Appropriate correction is required. 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. Claims 1, 3, 5, 9, 19, 22, 29, 31, 37, 39, 43, 45, 47, 49 – 50, 68, 70 – 71, 74 – 75, 77, 82, 84, and 89 – 91 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. Regarding claim 1, which recites the limitation, “provided that the compound is not any one of the compounds shown in Table I;” without stating the chemical name or chemical structure. Applicant is reminded that, where possible, claims are to be complete in themselves. Incorporation by reference to a specific figure or table "is permitted only in exceptional circumstances where there is no practical way to define the invention in words and where it is more concise to incorporate by reference than duplicating a drawing or table into the claim. Incorporation by reference is a necessity doctrine, not for applicant’s convenience." Ex parte Fressola, 27 USPQ2d 1608, 1609 (Bd. Pat. App. & Inter. 1993) (citations omitted). See MPEP 2173.05(s). Additionally, claims 3, 5, 9, 19, 22, 29, 31, 37, 39, 43, 45, 47, 49 – 50, 68, 70 – 71, 74 – 75, 77, 82, 84, and 90 – 91 are included in the rejection for failing to correct the issue. Regarding claim 89, which recites the limitation for a compound, or a pharmaceutically acceptable salt thereof, wherein the compound is selected from: “1-(8-((2-methoxy-6-methyl-2H-l12-pyridin-5-yl)sulfonyl)-8-azaspiro[4.5]decan-2-yl)azetidin-3-ol; 8-((2-methoxy-6-methyl-2H-I12-pyridin-5-yl)sulfonyl)-N-(2-methoxyethyl)-N-methyl-8-azaspiro[4.5]decan-2-amine;” is ambiguous because one or ordinary skill in the art would not know the chemical structure for either “1-(8-((2-methoxy-6-methyl-2H-l12-pyridin-5-yl)sulfonyl)-8-azaspiro[4.5]decan-2-yl)azetidin-3-ol” or “8-((2-methoxy-6-methyl-2H-I12-pyridin-5-yl)sulfonyl)-N-(2-methoxyethyl)-N-methyl-8-azaspiro[4.5]decan-2-amine.” In particular, both chemical names includes the typo “2H-l12-pyridin-5-yl,” which does not correspond to a known chemical structure. Is the typo suppose to read “2H-1,1,2-pyridin-5-yl,”“2H-1’-2-pyridin-5-yl,” or “2H-1,2-pyridin-5-yl?” Therefore, given the uncertainty around the chemical names in claim 89; claim 89 is rejected under 35 U.S.C. 112(b). Discussion of the Prior Art The closet prior art of International Publication Number WO 2017/214002 A1 to Tran et. al. (Tran’002; cited on the ISR and IDS form) teach certain 1-oxa-8-azaspiro[4.5]decan-3-yl-aminopropanyl-ether derivatives of Formula Ia PNG media_image1.png 134 414 media_image1.png Greyscale . See page 2 line 12. Particularly, Tran’002 teach compounds of Formula (Ie) of structure PNG media_image2.png 130 380 media_image2.png Greyscale where reference R1 is an aryl or heteroaryl. See page 37 lines 19 and 21. However, Tran’002 fails to teach a compound wherein instant either R1 or R2 are each independently selected from H, C1-6alkyl, C3-8cycloalkyl, C3-8cycloalkenyl, 6 to 10-membered bicyclic heterocyclyl, and 4 to 6-membered monocyclic heterocyclyl, provided at least one of R1 or R2 is not H; or instant R1 and R2 together with the N atom from which they are attached form a 4 to 7-membered monocyclic heterocycle or 6 to 10-membered bicyclic heterocycle. See claim 1. Additionally, Tran’002 fails to teach any of the compound species recited in examined claim 89. See claim 89. Moreover, the prior art fails to teach a motivation for modifying the prior art compound species to obtain a compound where at least one of R1 or R2 is C1-6alkyl, C3-8cycloalkyl, C3-8cycloalkenyl, 6 to 10-membered bicyclic heterocyclyl, and 4 to 6-membered monocyclic heterocyclyl. Therefore, since the closet prior art of Tran’002 fails to anticipate or render obvious examined claims 1, 3, 5, 9, 19, 22, 29, 31, 37, 39, 43, 45, 47, 49 – 50, 68, 70 – 71, 74 – 75, 77, 82, 84, and 89 – 90; examined claims 1, 3, 5, 9, 19, 22, 29, 31, 37, 39, 43, 45, 47, 49 – 50, 68, 70 – 71, 74 – 75, 77, 82, 84, and 89 – 90 are free of the prior art. Moreover, examine claim 91 directed to a method is also free of the prior art since examined claim 91 administers a compound of examined claim 1 which was found to be free of the prior art. Conclusion Claims 1, 3, 5, 9, 19, 22, 29, 31, 37, 39, 43, 45, 47, 49 – 50, 68, 70 – 71, 74 – 75, 77, 82, 84, and 89 – 91 are rejected. Any inquiry concerning this communication or earlier communications from the examiner should be directed to DAWANNA S WHITE whose telephone number is (703)756-4687. The examiner can normally be reached 7:00 am - 5:00 pm [EST] M - Th. 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, Kortney Klinkel can be reached at 571-270-5239. 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. /DAWANNA SHAR-DAY WHITE/Examiner, Art Unit 1627
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Prosecution Timeline

Aug 09, 2024
Application Filed
Jul 08, 2026
Non-Final Rejection mailed — §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
63%
Grant Probability
86%
With Interview (+23.6%)
3y 5m (~1y 6m remaining)
Median Time to Grant
Low
PTA Risk
Based on 110 resolved cases by this examiner. Grant probability derived from career allowance rate.

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