Prosecution Insights
Last updated: April 19, 2026
Application No. 18/414,311

Albumin-Free Botulinum Toxin Formulations

Non-Final OA §102
Filed
Jan 16, 2024
Examiner
OGUNBIYI, OLUWATOSIN A
Art Unit
1645
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Revance Therapeutics Inc.
OA Round
2 (Non-Final)
63%
Grant Probability
Moderate
2-3
OA Rounds
3y 1m
To Grant
99%
With Interview

Examiner Intelligence

Grants 63% of resolved cases
63%
Career Allow Rate
579 granted / 914 resolved
+3.3% vs TC avg
Strong +43% interview lift
Without
With
+42.9%
Interview Lift
resolved cases with interview
Typical timeline
3y 1m
Avg Prosecution
45 currently pending
Career history
959
Total Applications
across all art units

Statute-Specific Performance

§101
5.5%
-34.5% vs TC avg
§103
26.4%
-13.6% vs TC avg
§102
24.0%
-16.0% vs TC avg
§112
26.4%
-13.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 914 resolved cases

Office Action

§102
Notice of Pre-AIA or AIA Status The present application is being examined under the pre-AIA first to invent provisions. Continued Examination Under 37 CFR 1.114 A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after allowance or after an Office action under Ex Parte Quayle, 25 USPQ 74, 453 O.G. 213 (Comm'r Pat. 1935). Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, prosecution in this application has been reopened pursuant to 37 CFR 1.114. Applicant's submission filed on 3/3/26 has been entered. Claims 1-18 are pending and are under examination The indicated allowability of claims 1-18 is withdrawn in view of the newly discovered reference(s) to Hunt et al. US 8168206 10/19/2021 with priority to provisional application 60/725,126 10/6/2005. Rejections based on the newly cited reference(s) follow. The information disclosure statement filed 3/3/26 has been considered and initialed copies are enclosed. 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 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 – (e) the invention was described in (1) an application for patent, published under section 122(b), by another filed in the United States before the invention by the applicant for patent or (2) a patent granted on an application for patent by another filed in the United States before the invention by the applicant for patent, except that an international application filed under the treaty defined in section 351(a) shall have the effects for purposes of this subsection of an application filed in the United States only if the international application designated the United States and was published under Article 21(2) of such treaty in the English language. Claim(s) 1-18 is/are rejected under pre-AIA 35 U.S.C. 102(e) as being anticipated by Hunt et al. US 8168206 10/19/2021 with priority to provisional application 60/725,126 10/6/2005. Claim 1, 8-14: Hunt et al disclose a pharmaceutical composition (paragraphs 2, 64) comprising a liquid carrier (paragraph 40), wherein the liquid carrier comprises a botulinum toxin (see abstract, under background), a non-ionic surfactant such as polysorbate 80, polysorbate 20, tween20, tween80 etc. (paragraph55), *one or more non-reducing sugars selected from non-reducing disaccharides and a non-reducing trisaccharides including sucrose, trehalose, raffinose etc. (paragraph 46, 47, 48), *a bulking agent such as polyols e.g. sorbitol, mannitol (see paragraph 49-51), and a physiologically compatible buffer (paragraph 64), wherein the concentration of the bulking agent is in the range of 1% to 10% (see paragraph 49-51), and wherein the concentration of the non-reducing sugar is in the range of 0.50 to 3.0% (w/v) (see paragraph 48) ,wherein the liquid carrier is formulated such that upon vacuum drying or lyophilization an amorphous solid is formed (see abstract, paragraph 1) . Claim 2: Hunt et al disclose the botulinum toxin is a Type A toxin. See paragraph 26. Claim 3: Hunt et al disclose the c the botulinum toxin is 150 kDa Type A toxin. See paragraph 26. Claim 4, 6, 7, 8: Hunt et al discloses the composition comprises a viscosity-modifying agent such as a poloxamer e.g. poloxamer 188 (paragraphs 55 and 56). Claim 4,5: Hunt et al disclose the composition further comprises a gelling agent such as a cellulose-based gelling agent e.g. hydroxyethyl cellulose etc. See paragraph 52, 53, . Claim 6: Hunt et al disclose the composition further comprises a viscosity- modifying agent, wherein the viscosity-modifying agent is selected from one or more of polyethylene glycol. See paragraph 52. Claim 15: Hunt et al disclose the physiologically compatible buffer is phosphate or histidine or citrate buffer. See paragraph 64. Claim 16: Hunt et al disclose the concentration of the bulking agent is in the range of 1.5% to 7.5%. See paragraph 49-51. Claim 17: Hunt et al disclose the concentration of the bulking agent is in the range of 2% to 6%. See paragraph 49-51. Claim 18: Hunt et al disclose the composition according to claim 1, wherein the concentration of the bulking agent is in the range of 3% to 5%. See paragraph 49-51. Status of Claims Claim 1-18 are rejected. Any inquiry concerning this communication or earlier communications from the examiner should be directed to OLUWATOSIN A OGUNBIYI whose telephone number is (571)272-9939. The examiner can normally be reached IFP. 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, Daniel Kolker can be reached at 5712723181. 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. /OLUWATOSIN A OGUNBIYI/Primary Examiner, Art Unit 1645
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Prosecution Timeline

Jan 16, 2024
Application Filed
Nov 27, 2024
Non-Final Rejection — §102
Jun 03, 2025
Response Filed
Oct 22, 2025
Request for Continued Examination
Oct 23, 2025
Response after Non-Final Action
Mar 03, 2026
Request for Continued Examination
Mar 09, 2026
Response after Non-Final Action
Mar 19, 2026
Non-Final Rejection — §102 (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

2-3
Expected OA Rounds
63%
Grant Probability
99%
With Interview (+42.9%)
3y 1m
Median Time to Grant
Moderate
PTA Risk
Based on 914 resolved cases by this examiner. Grant probability derived from career allow rate.

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