Prosecution Insights
Last updated: July 17, 2026
Application No. 18/038,409

A Rapamycin Composition

Non-Final OA §103
Filed
May 23, 2023
Priority
Nov 24, 2020 — AU 2020277132 +1 more
Examiner
SOROUSH, LAYLA
Art Unit
1622
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Aft Pharmaceuticals Limited
OA Round
1 (Non-Final)
40%
Grant Probability
Moderate
1-2
OA Rounds
7m
Est. Remaining
84%
With Interview

Examiner Intelligence

Grants 40% of resolved cases
40%
Career Allowance Rate
358 granted / 884 resolved
-19.5% vs TC avg
Strong +43% interview lift
Without
With
+43.0%
Interview Lift
resolved cases with interview
Typical timeline
3y 9m
Avg Prosecution
42 currently pending
Career history
932
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
58.1%
+18.1% vs TC avg
§102
2.6%
-37.4% vs TC avg
§112
1.9%
-38.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 884 resolved cases

Office Action

§103
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 . Priority This Application filed on 05/23/2023 is a 371 of PCT/NZ2021/050194 filed on 11/04/2021. DETAILED ACTION The Office Action is in response to the Applicant's reply filed April 2, 2026 to the restriction requirement made on October 2, 2025. Applicant's election without traverse of Group I, Claims 45-59, in the reply filed on April 2, 2026 is acknowledged. The requirement is still deemed proper and is therefore made FINAL. Information Disclosure Statement The information disclosure statement(s) (IDS) filed on 8/22/24 and 4/2/26 is in compliance with the provisions of S7 CFR 1.97. Accordingly, the IDS is being considered by the Examiner. The rejections are as below: Claim Rejections - 35 USC § 103 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 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. Claims 45-48, 51-57 are rejected under 35 U.S.C. 103 as being unpatentable over Nathan et al. (US2003/0236310). Nathan et al. teaches a bioactive agent, rapamycin; monoglyceride is selected from the group consisting of monostearoyl glycerol, monopalmitoyl glycerol, monomyrisitoyl glycerol, monocaproyl glycerol, monodecanoyl glycerol, monolauroyl glycerol, monolinoleoyl glycerol and monooleoyl glycerol; water added immediately before administration; additionally, at least on additional polyol selected from the group consisting of ethylene glycol, 1,2-propylene glycol; polybasic acid or derivative thereof is selected from the group consisting of succinic acid, succinic anhydride, malic acid, tartaric acid, citric acid; alkyd polyester microdispersions of the present invention can be made more hydrophilic or amphiphilic by employing hydroxy acids, such as malic, tartaric and citric acids, or some oxadiacids, in the composition [0019]. While Nathan teaches the components of the formulation, an example of formulation is not specified. It would have been obvious to one of ordinary skill in the art at the time of filing to interchange the components of Nathan. The motivation to interchange the components is because Nathan teaches the variables that are compatible for making the formulation include a bioactive agent, monoglyceride, water, polyols, polybasic acid, and hydroxy acids to make the composition more hydrophilic or amphiphilic . A skilled artisan would have reasonable expectation of successfully achieving similar efficacy and results. With respect to the amounts, in the case where the claimed ranges “overlap or lie inside ranges disclosed by the prior art” a prima facie case of obviousness exists. In re Wertheim, 541 F.2d 257, 191 USPQ 90 (CCPA 1976); In re Woodruff, 919 F.2d 1575, 16 USPQ2d 1934 (Fed. Cir. 1990). (MPEP § 2144.05(1)) Moreover, differences in concentration will not support the patentability of subject matter encompassed by the prior art unless there is evidence indicating such concentration is critical. “[W]here the general conditions of a claim are disclosed in the prior art, it is not inventive to discover the optimum or workable ranges by routine experimentation.” In re Aller, 220 F.2d 454, 456, 105 USPQ 233, 235 (CCPA 1955). (MPEP § 2144.05(Il)) “The normal desire of scientists or artisans to improve upon what is already generally known provides the motivation to determine where in a disclosed set of percentage ranges is the optimum combination of percentages.” In re Peterson, 315 F.3d 1325, 1330, 65 USPQ2d 1379, 1382-83 (Fed. Cir. 2003). Claims 49-50 are rejected under 35 U.S.C. 103 as being unpatentable over Nathan et al. (US2003/0236310), as applied to claims 45-48, 51-57 above in view of Wang et al. (EP3927410A1). Nathan et al. is as discussed above. While Nathan et al. teaches polyethylene glycol; the reference does not teach polyethylene glycol stearate. Wang et al. teaches a therapeutic agent chosen from paclitaxel, docetaxel, taxol, their analogues, rapamycin, sirolimus, zotarolimus, everolimus, tacrolimus, mTOR inhibitors, their analogues, and combinations thereof, a water- soluble additive such as sorbitol, monolaurin, monomyristin (see claim 11) and combinations thereof; surfactants in the mixture or the combination include PEG stearate; additives such as triethanolamine, organic acids such as citric acid. It would have been obvious to one of ordinary skill in the art at the time of filing to incorporate PEG stearate. The motivation to incorporate PEG stearate is because Wang teaches PEG stearate acts as a surfactant. A skilled artisan would have reasonable expectation of successfully achieving similar efficacy and results. Claims 45-58 are rejected under 35 U.S.C. 103 as being unpatentable over Wang et al. (EP3927410A1). Wang et al. teaches a therapeutic agent chosen from paclitaxel, docetaxel, taxol, their analogues, rapamycin, sirolimus, zotarolimus, everolimus, tacrolimus, mTOR inhibitors, their analogues, and combinations thereof, a water- soluble additive such as sorbitol, monolaurin, monomyristin (see claim 11) and combinations thereof; surfactants in the mixture or the combination include PEG stearate; additives such as triethanolamine, organic acids such as citric acid. While Wang teaches the components of the formulation, an example of formulation is not specified. It would have been obvious to one of ordinary skill in the art at the time of filing to interchange the components of Wang. The motivation to interchange the components is because Wang teaches the variables that are compatible for making the formulation include a therapeutic agent, water- soluble additive, surfactants, and additives. A skilled artisan would have reasonable expectation of successfully achieving similar efficacy and results. With respect to the amounts, in the case where the claimed ranges “overlap or lie inside ranges disclosed by the prior art” a prima facie case of obviousness exists. In re Wertheim, 541 F.2d 257, 191 USPQ 90 (CCPA 1976); In re Woodruff, 919 F.2d 1575, 16 USPQ2d 1934 (Fed. Cir. 1990). (MPEP § 2144.05(1)) Moreover, differences in concentration will not support the patentability of subject matter encompassed by the prior art unless there is evidence indicating such concentration is critical. “[W]here the general conditions of a claim are disclosed in the prior art, it is not inventive to discover the optimum or workable ranges by routine experimentation.” In re Aller, 220 F.2d 454, 456, 105 USPQ 233, 235 (CCPA 1955). (MPEP § 2144.05(Il)) “The normal desire of scientists or artisans to improve upon what is already generally known provides the motivation to determine where in a disclosed set of percentage ranges is the optimum combination of percentages.” In re Peterson, 315 F.3d 1325, 1330, 65 USPQ2d 1379, 1382-83 (Fed. Cir. 2003). Claims 58-59 are rejected under 35 U.S.C. 103 as being unpatentable over Nathan et al. (US2003/0236310), as applied to claims 45-48, 51-57 above in view of Rudolph et al. (WO 2008089822 A2). Nathan et al. is as discussed above. Nathan et al. does not teach the preservatives of claim 59. Rudolph et al. teaches preservatives or antimicrobial agents in catheters which contain liquid polymers. The preservatives or antimicrobial agents, such as for example phenoxyethanol, triclosan, 7-ethylbicyclooxazolidine, benzoic acid, bronopol, butylparaben, chlorphenesin, diazolidinyl urea, dichlorobenzyl alcohol, dimethyl oxazolidine, DMDM hydantoin, ethylparaben, hexamidine diisethionate, imidiazolidinyl urea, imidiazolidinyl urea NF, iodopropynyl butylcarbamate, isobutylparaben, methylparaben, potassium sorbate NF FCC, propylparaben, quaternium-15, sodium benzoate NF FCC, sodium caprylate, sodium dehydroacetate, sodium dehydroacetate FCC, sodium hydroymethylglycinate, sodium hydroxymethylglycinate. It would have been obvious to one of ordinary skill in the art at the time of filing to incorporate phenoxyethanol, diazolidinyl urea, potassium sorbate, or sodium hydroymethylglycinate. The motivation to incorporate henoxyethanol, diazolidinyl urea, potassium sorbate, or sodium hydroymethylglycinateis because Rudolph teaches they are used as preservatives or antimicrobial agents. A skilled artisan would have reasonable expectation of successfully achieving similar efficacy and results. Claims 58-59 are rejected under 35 U.S.C. 103 as being unpatentable over Wang et al. (EP3927410A1), as applied to claims 45-58, above in view of Rudolph et al. (WO 2008089822 A2). Wang et al. is as discussed above. Wang et al. does not teach the preservatives of claim 59. Rudolph et al. teaches preservatives or antimicrobial agents in catheters which contain liquid polymers. The preservatives or antimicrobial agents, such as for example phenoxyethanol, triclosan, 7-ethylbicyclooxazolidine, benzoic acid, bronopol, butylparaben, chlorphenesin, diazolidinyl urea, dichlorobenzyl alcohol, dimethyl oxazolidine, DMDM hydantoin, ethylparaben, hexamidine diisethionate, imidiazolidinyl urea, imidiazolidinyl urea NF, iodopropynyl butylcarbamate, isobutylparaben, methylparaben, potassium sorbate NF FCC, propylparaben, quaternium-15, sodium benzoate NF FCC, sodium caprylate, sodium dehydroacetate, sodium dehydroacetate FCC, sodium hydroymethylglycinate, sodium hydroxymethylglycinate. It would have been obvious to one of ordinary skill in the art at the time of filing to incorporate phenoxyethanol, diazolidinyl urea, potassium sorbate, or sodium hydroymethylglycinate. The motivation to incorporate henoxyethanol, diazolidinyl urea, potassium sorbate, or sodium hydroymethylglycinateis because Rudolph teaches they are used as preservatives or antimicrobial agents. A skilled artisan would have reasonable expectation of successfully achieving similar efficacy and results. Conclusion No claims allowed. Any inquiry concerning this communication or earlier communications from the examiner should be directed to LAYLA SOROUSH whose telephone number is (571)272-5008. The examiner can normally be reached on Monday thru Friday; 8:30 AM to 5:00 PM EST. 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 Henry Alstrum-Acevedo, can be reached on (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. /LAYLA SOROUSH/ Primary Examiner, Art Unit 1622
Read full office action

Prosecution Timeline

May 23, 2023
Application Filed
Jun 03, 2026
Non-Final Rejection mailed — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12653833
NASAL SPRAY COMPOSITION
1y 6m to grant Granted Jun 16, 2026
Patent 12648919
ANTICOCCIDIAL COMPOSITION COMPRISING COUMARIC ACID AND USE THEREOF
3y 3m to grant Granted Jun 09, 2026
Patent 12636262
PROCESS FOR THE PREPARATION OF ANTHRAQUINONE TOPICAL FORMULATION
4y 4m to grant Granted May 26, 2026
Patent 12622908
TOPICAL FORMULATION FOR A JAK INHIBITOR
4y 5m to grant Granted May 12, 2026
Patent 12622921
STABLE FORMULATIONS COMPRISING THIOTEPA
3y 8m to grant Granted May 12, 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

1-2
Expected OA Rounds
40%
Grant Probability
84%
With Interview (+43.0%)
3y 9m (~7m remaining)
Median Time to Grant
Low
PTA Risk
Based on 884 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