Prosecution Insights
Last updated: July 17, 2026
Application No. 18/487,330

Stable Antiemetic Emulsions for Parenteral Administration

Final Rejection §103
Filed
Oct 16, 2023
Priority
Oct 31, 2022 — IN 202241061823
Examiner
MOU, LIYUAN
Art Unit
1628
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Slayback Pharma LLC
OA Round
6 (Final)
43%
Grant Probability
Moderate
7-8
OA Rounds
3m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 43% of resolved cases
43%
Career Allowance Rate
48 granted / 112 resolved
-17.1% vs TC avg
Strong +56% interview lift
Without
With
+56.4%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
69 currently pending
Career history
184
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
39.7%
-0.3% vs TC avg
§102
0.7%
-39.3% vs TC avg
§112
2.1%
-37.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 112 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 . DETAILED ACTION Action Summary No claim amendment is made. Applicant's Remarks filed on 04/23/2026 have been fully considered, but they are NOT persuasive to overcome 35 USC § 103 rejection on the record. Claims 1, 13-15, and 17 remain rejected under 35 U.S.C. 103 as being unpatentable over Bhagwatwar et al. (US 2022/0160722 A1), in view of Ottoboni ’013 (US 2016/0082013 A1). Status of Claims Claims 1, 13- 17 are pending in instant application. Claim 16 remains withdrawn. Claims 1, 13-15, and 17 are currently under examination in this office action. Priority This application 18/487,330 filed 10/16/2023 claims benefit of INDIA provisional Application 202241061823 filed 10/31/2022. Certified copies of foreign application required by 37 CFR 1.55 was filed on 11/09/2023. 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 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. The factual inquiries for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. This application currently names joint inventors. In considering patentability of the claims the examiner presumes that the subject matter of the various claims was commonly owned as of the effective filing date of the claimed invention(s) absent any evidence to the contrary. Applicant is advised of the obligation under 37 CFR 1.56 to point out the inventor and effective filing dates of each claim that was not commonly owned as of the effective filing date of the later invention in order for the examiner to consider the applicability of 35 U.S.C. 102(b)(2)(C) for any potential 35 U.S.C. 102(a)(2) prior art against the later invention. Claim Interpretation: Independent claims 1 and 17 are product-by-process claims wherein the patentability of a product does not depend on its method of production. Instantly claimed stability profile of final aprepitant emulsion recited in claims 1 and 17, viscosity and zeta potential value recited in claims 13 and 15 are constructed as property of aprepitant emulsion product and/or intended result of manipulative preparation process, which does not necessarily contribute to the structural limitation of final product or additional patentable weight. Once the aprepitant injectable emulsion is formulated, measurement of stability, viscosity and zeta potential value is within the knowledge of an ordinary skilled in the art. Claims 1, 13-15, and 17 are rejected under 35 U.S.C. 103 as being unpatentable over Bhagwatwar et al. (US 2022/0160722 A1, Applicant’s IDS dated 10/16/2023, under “US Patent Application Publications”, Cite # 1), in view of Ottoboni et al. (US 2016/0082013 A1, hereafter “Ottoboni ‘013”) and evidenced by Cinvanti® aprepitant prescribing information 2019 by Heron Therapeutics (Applicant’s IDS dated 10/16/2023). Bhagwatwar discloses stable emulsion formulations for the intravenous or parenteral administration of neurokinin-1 (NK-1) receptor antagonists(e.g. aprepitant) for treatment of emesis, method for preparing the stable NK-1 receptor antagonist emulsions and pharmaceutical formulations thereof (See abstract, [0015]-[0016], [0020]-[0025], [0032], [0074]-[0078],Examples 1-7, claims 1-20). Bhagwatwar teaches beneficial oil in water emulsion compositions of NK-1 antagonists(e.g. aprepitant) by using combinations of a phospholipid primary emulsifier/surfactant (e.g. egg lecithin) in combination with varying concentrations of one or more co-surfactants/secondary emulsifiers such as sodium oleate, ethanol (See [0013]). Bhagwatwar specifically discloses injectable emulsion formulations have an oil phase comprising aprepitant, oil, ethanol, egg lecithin, that is mixed with aqueous phase comprising sucrose and sodium oleate, and processed to form the emulsion formulation that may be stable for at least 12 months at refrigerated temperature(See abstract, [0015]-[0016], [0032], [0059]-[0066], [0074]-[0078], Examples 1-7, Table 1,3-4; claims 1-20). Regarding the aprepitant composition final product, Bhagwatwar explicitly teaches final aprepitant emulsion product comprising aprepitant, egg lecithin, ethanol, soybean oil sucrose, and sodium oleate, at the amount within 5% of instantly claimed amount (See Table 1, Examples 1-2, 7; Table 3 and 4; claims 2-7, 12-15). As defined by instant specification [0060], “the term "about" means having a value falling within an accepted standard of error of the mean when considered by one of ordinary skill in the art. Frequently, the term "about" refers to ± 10%, preferably ±5% of the value or range to which it refers”. For example, Bhagwatwar teaches Sample 2 in Table 3 and Scaled up Example 7 in Table 4, comprising: (a) aprepitant (7.2 mg), (b) egg lecithin ( 175mg, an emulsifier); (c) ethanol ( 27.78mg, co-emulsifier ); (d) soybean oil (94.4mg); (e) sodium oleate (5.7mg, buffering agent, 0.6 wt/wt %); (f) sucrose ( 55.56 mg); (g) water, wherein the pH of the composition ranges from 7.5-9.0 reads on “ about 7.5-11.0” recited in instant claim 14. PNG media_image1.png 455 629 media_image1.png Greyscale PNG media_image2.png 561 544 media_image2.png Greyscale Following table illustrated the side-by-side comparation of Bhagwatwar embodiment and instant claims: PNG media_image3.png 216 429 media_image3.png Greyscale Regarding sodium oleate, Bhagwatwar teaches embodiments of stable emulsion product comprising 0.56 -0.67 wt/wt% sodium oleate (See Example 2 in Table 1, Samples 1-4 in Table 3, Example 7 in Table 4). Bhagwatwar teaches embodiments comprising sodium oleate levels ranging from 0.556% to 1.74% w/w, which showed promising stability, and acceptable syringeability, processability and redispersibility when compared to the commercial Cinvanti (aprepitant) formulation(See [0082]). Regarding the manufacturing process, Bhagwatwar teaches preparation of oil phase comprising aprepitant, egg lecithin( Lipoid E 80) as emulsifier, ethanol as co-emulsifier and soybean oil, aqueous phase comprising sodium oleate and sucrose, mixing oil phase and aqueous phase under high shear homogenization, and fine emulsion preparation by high pressure homogenizer(See [0074]-[0078], Table 5, claim 18-20). PNG media_image4.png 293 522 media_image4.png Greyscale PNG media_image5.png 104 507 media_image5.png Greyscale PNG media_image6.png 394 537 media_image6.png Greyscale As illustrated above, Bhagwatwar teaches preparation of oil phase and aqueous phase that read on instant recited steps, wherein sodium oleate and sucrose were dissolved in water, followed by high shear mixing with oil phase to prepare coarse emulsion. Bhagwatwar teaches various preparation processes mixing oil phase and aqueous phase wherein sodium oleate is in oil phase or in aqueous phase. Please note instant product claims are examined based on the structural limitations of final product. The limitation of intermediate process steps wherein oil phase and aqueous phase comprising specific emulsifiers/co-emulsifiers in each phase are NOT patentably distinctive structural limitation of final product. Regarding the property / stability of final aprepitant composition, Bhagwatwar discloses embodiments of aprepitant injectable emulsion are physicochemically stable for at least 24 months at room temperature (25 degrees Celsius) without an increase in average droplet size or population of large-diameter fat globules above that allowed as stated in USP <729>( See [0070]). Bhagwatwar discloses reproducible batches of aprepitant injectable emulsion at large scale that are stable for extended period of time when stored at 5°± 3°C /60% RH (See [0084], Example 7, Tables 4, 6). Bhagwatwar discloses viscosity of the emulsion compositions with the desired zeta potential (Mv) ranging from -35 to -75 mV, e.g. -41.6 mV ( See [0080],Table 6)(which overlaps with “-25mV to about -40mV” of instant claim 15). Please note instantly claimed stability profile of final aprepitant emulsion recited in claims 1 and 17, viscosity and zeta potential value recited in claims 13 and 15 are construed as property of aprepitant emulsion product and/or intended result of manipulative preparation process, which does not necessarily contribute to the structural limitation of final product or additional patentable weight. Once the aprepitant injectable emulsion is formulated, measurement of stability, viscosity and zeta potential value is within the knowledge of an ordinary skilled in the art. Where the claimed and prior art products are identical or substantially identical in structure or composition, or are produced by identical or substantially identical processes, a prima facie case of either anticipation or obviousness has been established. In re Best, 562 F.2d 1252, 1254, 195 USPQ 430, 433 (CCPA 1977). See MPEP 2112.01. Even if the stability, viscosity and zeta potential value are not identical to the value taught by the cited reference with regard to some unidentified characteristics, the differences between that which is disclosed and that which is claimed are considered to be slight , the claimed stability, viscosity and zeta potential value would have been obvious to those of ordinary skill in the art within the meaning of 35 USC §103. Regarding general knowledge of aprepitant formulation, as disclosed by Bhagwatwar (See [0011]), “Beneficial emulsion formulations of aprepitant are commercially available in the United States from Heron Therapeutics under the brand name CINVANTI®. According to its label (Revised 10/2019), CINVANTI (aprepitant) injectable emulsion is a sterile, opaque, off-white to amber liquid in a single-dose vial for intravenous use. Each vial contains 130 mg aprepitant in 18 mL of emulsion. The emulsion also contains the following inactive ingredients: egg lecithin (2.6 g), ethanol (0.5 g), sodium oleate (0.1 g), soybean oil (1.7 g), sucrose (1 g), and water for injection (12 g). The emulsions are formulated to have final pH values in the range of 7.5-9.0 wherein the pH is adjusted using sodium oleate. The composition can be administered intravenously as an infusion or also as a bolus. According to the label, CINVANTI injectable emulsion vials must be refrigerated, store at 2° C.-8° C. (36° F.-46° F.), but can remain at room temperature up to 60 days”. An ordinary skilled in the art would have known injectable aprepitant emulsion are initially approved in US since 2003 and commercially available, such as Cinvanti® aprepitant injectable emulsion manufactured by Heron Therapeutics. It’s noted instant specification also use Cinvanti® aprepitant injectable emulsion as control (See Table 15-16). Thus, manufacturing process of Cinvanti® aprepitant emulsion disclosed by Heron Therapeutics, Ottoboni ‘013 is considered as general knowledge in preparing injectable aprepitant emulsion. Regarding instantly claimed aprepitant emulsion and process steps, Ottoboni ‘013 teaches preparation of oil phase, aqueous phase, followed by homogenizing, wherein aqueous phase comprising sodium oleate and sucrose is added to the oil phase comprising aprepitant, egg lecithin (LIPOIDE 80), ethanol and soybean oil, followed by high-speed homogenization and high-pressure microfluidizer to produce fine aprepitant emulsion (See Examples 1-3): The aqueous phase was prepared by dissolving 5.60 g of sucrose and 0.500 g of sodium oleate in 70.0 ml of water for injection. This mixture was stirred at 300 rpm at room temperature for 30 min. The aqueous phase was then added to the oil phase and subsequently subjected to high-speed homogenization (Ultra-Turrax(RIKAT25) at a speed of 20,000 rpm for 1 min to produce the crude emulsion. It’s noted the ingredients in Ottoboni ‘013 also read on the instant claims except slightly different amount. PNG media_image7.png 431 524 media_image7.png Greyscale To achieve desired property of stable injectable aprepitant emulsion (stability , viscosity, etc.), it would have been obvious and logical for a skilled artisan to further explore/optimize amount/ratio of ingredients, manipulate the steps/orders of mixing oil phase/aqueous phase in preparing emulsion process, based on the collective teachings of prior art and general knowledge of aprepitant injectable emulsion, e.g. manufacturing process of Cinvanti® aprepitant emulsion by Ottoboni’013. Bhagwatwar explicitly teaches aprepitant emulsion comprising aprepitant, egg lecithin, ethanol, soybean oil sucrose, and sodium oleate, that are comparable to commercial Cinvanti® aprepitant emulsion and Bhagwatwar Example 7 is large-scale process that are reproducible. A skilled artisan would be motivated to further optimize Bhagwatwar Example 7 for improved stability at r. t. As stated in MPEP 2144.05, " It is a settled principle of law that a mere carrying forward of an original patented conception involving only change of form, proportions, or degree, or the substitution of equivalents doing the same thing as the original invention, by substantially the same means, is not such an invention as will sustain a patent, even though the changes of the kind may produce better results than prior inventions." In instant case, Bhagwatwar explicitly teaches aprepitant emulsion comprising the same amount of ingredients as instantly claimed aprepitant emulsion. Ottoboni ‘013 explicitly teaches manufacturing process of Cinvanti® aprepitant which is essentially the same as instant claimed steps except different amount. It’s noted the ingredients in Ottoboni ‘013 also read on the instant claims except slightly different amount. Both Bhagwatwar and Ottoboni ‘013 teach process of dissolving sodium oleate and sucrose in water before mixing with oil phase that read on instant recited steps. One of ordinary skill in the art would have had reasonable expectation of success in producing instantly claimed invention based on the combined teachings of prior art and general knowledge of injectable aprepitant emulsion, e.g. manufacturing process of Cinvanti® aprepitant emulsion by Ottoboni, wherein sucrose and sodium oleate was added in aqueous phase before mixing with oil phase comprising aprepitant, egg lecithin (LIPOIDE 80), ethanol, soybean oil, and homogenizing fine aprepitant emulsion, and arrive at instantly claimed invention. Therefore, the invention as a whole is prima facie obvious to one of ordinary skill in the art at the time the invention was made, as evidenced by the references, especially in the absence of evidence to the contrary. Response to Arguments Applicant's Remarks filed on 04/23/2026 have been fully considered, but they are NOT persuasive to overcome 35 USC § 103 rejection as elaborated above. Applicant’s argument is essentially the same as previous reply: Bhagwatwar does not disclose or suggest the stability limitation recited in the claims... Bhagwatwar does not suggest that the stability limitation recited in the claims is achievable... (Remarks, page 4-6). RESPONSE: Applicant’s argument has been fully considered, but NOT persuasive. As elaborated in previous office actions, instant claims are product-by-process claims. According to M.P.E.P. § 2113. PRODUCT-BY-PROCESS CLAIMS ARE NOT LIMITED TO THE MANIPULATIONS OF THE RECITED STEPS, ONLY THE STRUCTURE IMPLIED BY THE STEPS. "[E]ven though product-by-process claims are limited by and defined by the process, determination of patentability is based on the product itself. The patentability of a product does not depend on its method of production. If the product in the product-by-process claim is the same as or obvious from a product of the prior art, the claim is unpatentable even though the prior product was made by a different process." In re Thorpe, 777 F.2d 695, 698, 227 USPQ 964, 966 (Fed. Cir. 1985) (citations omitted) (Claim was directed to a novolac color developer. The process of making the developer was allowed. The difference between the inventive process and the prior art was the addition of metal oxide and carboxylic acid as separate ingredients instead of adding the more expensive pre-reacted metal carboxylate. The product-by-process claim was rejected because the end product, in both the prior art and the allowed process, ends up containing metal carboxylate. The fact that the metal carboxylate is not directly added, but is instead produced in-situ does not change the end product.). Furthermore, "[b]ecause validity is determined based on the requirements of patentability, a patent is invalid if a product made by the process recited in a product-by-process claim is anticipated by or obvious from prior art products, even if those prior art products are made by different processes." Amgen Inc. v. F. Hoffmann-La Roche Ltd., 580 F.3d 1340, 1370 n. 14, 92 USPQ2d 1289, 1312, n. 14 (Fed. Cir. 2009). In instant case, Bhagwatwar explicitly teaches aprepitant emulsion comprising the same amount of ingredients as instantly claimed aprepitant emulsion that could be manufactured in large scale. Ottoboni ‘013 explicitly teaches manufacturing process of Cinvanti® aprepitant which is essentially the same as instant claimed steps. It’s noted the ingredients in Ottoboni ‘013 also read on the instant claimed components except slightly different amount. Both Bhagwatwar and Ottoboni ‘013 teach process of dissolving sodium oleate and sucrose in water before mixing with oil phase that read on instant recited steps. Bhagwatwar discloses embodiments of aprepitant injectable emulsion are physico-chemically stable for at least 24 months at room temperature (25 degrees Celsius) without an increase in average droplet size or population of large-diameter fat globules above that allowed as stated in USP <729. Bhagwatwar explicitly teaches embodiments of aprepitant emulsion final product that’s stable for at least 6 months without phase separation when stored at 5°±3°C. Bhagwatwar teaches embodiments showing promising stability, acceptable syringeability, processability and redispersibility comparable to the commercial Cinvanti (aprepitant) formulation made by Ottoboni ‘013 which can be stored at 2°C-8°C and at room temperature up to 60 days as. A skilled artisan would consider instant claimed composition as obvious alternative/optimization based on the combined teachings of Bhagwatwar, Ottoboni ‘013 and general knowledge of preparing aprepitant emulsion. Regarding instantly claimed stability wherein there is no evidence of phase separation for at least 6 months when stored at 2-8°C and at 25°C/60%RH, “no evidence of phase separation” is not fully supported by instant disclosed working example. As disclosed in instant Example 3, Table No. 10, 12, 13, instant Composition G and H at larger batch size shows “opaque off white to amber colored liquid” after 6 month at 25°C/ 60% RH . There is no explicit description of “no phase separation” in instant Composition G and H after 6 month at 25° C/ 60% RH in Table 10, 12 and 13. It’s not clear if the opaque off white liquid is still “emulsion” with or without phase separation. Instant Composition I (Table 14) shows opaque off white to amber colored liquid at 1 month which was not tested at 6 month. Thus, Applicant’s argument and Dubewar Declaration about stability of composition G, H, I is NOT fully consistent with instant disclosure. PNG media_image8.png 439 404 media_image8.png Greyscale PNG media_image9.png 327 367 media_image9.png Greyscale Regarding the phase separation of Bhagwatwar Example 7, there are many physical-chemical factors causing emulsion phase separation, e.g. density difference between phases, droplet size and distribution( larger droplets separate faster), interfacial properties, zeta potential, viscosity of the continuous phase (higher viscosity slowing separation), pH, etc. that are routinely optimized during the emulsion formulation process as taught by Bhagwatwar and Ottoboni ‘013 . The obviousness is not based on one or two exemplary embodiment, but based on the collective teachings of prior art and general knowledge of aprepitant formulation. Even if instant composition exhibit improved stability at room temperature as Applicant alleged, a skilled artisan would consider instant claimed composition as obvious alternative/optimization based on the combined teachings of Bhagwatwar, Ottoboni ‘013 and general knowledge of preparing aprepitant emulsion. Applicant agrees the claims are product-by-process claims, but argues “Bhagwatwar does not disclose the steps for making the emulsion that are recited in the claims… The method steps, however, are included in claims 1 and 17 because these steps are a defining factor in how the recited superior stability is achieved at 25°C/60%RH”( Remarks, page 6-11). RESPONSE: As elaborated in preceding office action, Bhagwatwar teaches preparation of oil phase and aqueous phase that read on instant recited steps a) and b) , wherein sodium oleate and sucrose were dissolved in water, followed by high shear mixing with oil phase to prepare coarse emulsion(See page 6, [0074]-[0078]) which is summarized as the second Bhagwatwar process by Applicant (Remarks, page 9). PNG media_image6.png 394 537 media_image6.png Greyscale PNG media_image10.png 389 589 media_image10.png Greyscale Applicant argues in the second process described in Bhagwatwar the sodium oleate solution is incorporated into the mixture after the emulsion has already formed. In contrast, in the claimed process sodium oleate is introduced into the mixture prior to the formation of the emulsion. This variation in the timing of adding sodium oleate potentially impacts the properties and characteristics of the final emulsion produced. (See Dubewar Declaration at 9) (Remarks, page 9). RESPONSE: The examiner acknowledged the variation of adding sodium oleate in aqueous phase. It’s noted instant claimed process step C) homogenizing the oil phase with the aqueous phase to generate the emulsion does not distinctly exclude adding water/aqueous phase at batches. It’s also noted instant schematic process in Figure 1 does not disclose specific variables for process step c), such as temperature of mixing , homogenizing speed, etc. that are contributing factors to the physical stability of emulsion, e.g. particle size distribution, zeta potential, etc. More importantly, a skilled artisan would have known dissolving sodium oleate and sucrose in water before mixing with oil phase as taught by Bhagwatwar, is conventional process as taught by Ottoboni ‘013 in the process of preparing Cinvanti® aprepitant, wherein the aqueous phase comprising sodium oleate and sucrose are directly mixed with oil phase before forming the emulsion. Thus, instant claimed generalized steps as recited in claims 1 and 17 are NOT novel, not unexpected and might not be a defining factor in how the recited superior stability is achieved at 25°C/60%RH as Applicant argues. For example, it’s noted instant Composition E prepared by instantly claimed method shows phase separation even at 2-8ºC (See Table 7). Instant Composition G, H, I at larger batch size shows “Opaque off white to amber colored liquid free from visible particular matter”. It’s not clear if the opaque liquid is still “emulsion” with or without phase separation. Applicant repeatedly argues “...A person of ordinary skill in the art reading Bhagwatwar and trying to improve the stability of an aprepitant emulsion would have been motivated to use higher amounts of sodium oleate to improve the stability of an aprepitant emulsion, not to use the manufacturing steps expressly recited in the claims”( Remarks, page 11). RESPONSE: As elaborated in previous response, the examiner does not dispute higher amounts of sodium oleate might improve the stability of an aprepitant emulsion as taught by Bhagwatwar. Please note Bhagwatwar disclosure of higher amount of sodium oleate (Table 2 and [0081]) is associated with the amount of egg lecithin in the absence of other co-emulsifier for desired Zeta potential/viscosity. A skilled artisan would know to further explore aprepitant emulsion based on Bhagwatwar optimized/claimed combination of component as illustrated in large scale Example 7 and claim 20, which is the same as instantly claimed. Please note optimizing amount of sodium oleate does not discourage POSA from experimentation/optimization of manufacturing steps, which in this case only involves following the conventional manufacturing process as taught by Ottoboni ‘013. Applicant argues about Ottoboni’s teaching and “there is no motivation to use the method described in Ottoboni to prepare the emulsions disclosed in Bhagwatwar with a reasonable expectation of successfully obtaining an emulsion with better stability.… There is nothing in Bhagwatwar or Ottoboni to suggest that the manufacturing steps will influence stability. The superior stability recited in the claims is completely unexpected (Remarks, page 12-14). RESPONSE: Please note instant claimed process is essentially the same process of producing commercial Cinvanti® as taught by Ottoboni, comprising the step of adding sodium oleate in the aqueous phase followed by mixing homogenizing oil phase and aqueous phase (See Ottoboni claim 14, Examples 1-3 and 7). PNG media_image11.png 276 500 media_image11.png Greyscale A skilled artisan would be motivated to use Ottoboni’s process without any need of further modification since it is commercial standardized process. It’s noted instant specification only discloses general process diagram without workings examples illustrating the detailed process variables. Both Bhagwatwar’s and Ottoboni provide working examples with detailed process, e.g. heating temperature to dissolve the components, stirring/mixing speed, homogenizing speed, etc. The modification of Bhagwatwar’s composition with Ottoboni process is considered as routine experimentation/optimization within the general knowledge of a skilled artisan that do not need expressly teaching from the prior art. Regarding instant claimed stability at r. t. Bhagwatwar’s teaching is not limited to Example 7 as explained in previous response. Applicant’s argument of unexpected stability/result based on manufacturing steps should be compared with the product formulated/optimized based on combination of Bhagwatwar’s process and Ottoboni ‘013 process as a whole. In instant case, Bhagwatwar explicitly teaches aprepitant emulsion comprising the same amount of ingredients as instantly claimed aprepitant emulsion. Ottoboni ‘013 explicitly teaches manufacturing process of Cinvanti® aprepitant which is essentially the same as instant claimed steps except different amount. Since instant recited component and process step are not novel and NOT unexpected, the emulsion product formulated based on combined teachings of Bhagwatwar and Ottoboni ‘013 would be expected to exhibit similar stability profile as instantly claimed composition. Applicant argues about hindsight reconstruction “In order to arrive at the claimed composition from Bhatwatwar and Ottoboni, requires selectively choosing the amounts of various components and the method of combining the components from the broad, general disclosure of these references, when there is no motivation or teaching to do so. Absent Applicant's disclosure as blueprint, a person of ordinary skill in the art, aware of Bhagwatwar and Ottoboni, would not arrive at the claimed formulation” (Remarks, page 14-16). IN RESPONSE to applicant's argument that the examiner's conclusion of obviousness is based upon improper hindsight reasoning , it must be recognized that any judgment on obviousness is in a sense necessarily a reconstruction based upon hindsight reasoning. But so long as it takes into account only knowledge which was within the level of ordinary skill at the time the claimed invention was made, and does not include knowledge gleaned only from the applicant's disclosure, such a reconstruction is proper. See In re McLaughlin, 443 F.2d 1392, 170 USPQ 209 (CCPA 1971). Please note the combination of ingredient as recited in instantly claimed composition are explicitly taught by Bhagwatwar which does not require selective choosing the amounts of various and components and combination from the broad general disclosure as Applicant argues. A skilled artisan would have arrived at instantly claimed steps without any need of further modification of Ottoboni’s process step. Instant claimed invention is combination of known components produced by commonly used process IN SUMMARY: As stated in MPEP 2144.05 II, " It is a settled principle of law that a mere carrying forward of an original patented conception involving only change of form, proportions, or degree, or the substitution of equivalents doing the same thing as the original invention, by substantially the same means, is not such an invention as will sustain a patent, even though the changes of the kind may produce better results than prior inventions." When considered as a whole, the alleged improved stability achieved by process steps is considered as better results of routine optimization of known formulation parameters disclosed by Bhagwatwar and Ottoboni ‘013 and general knowledge of aprepitant emulsion composition and preparation thereof. Conclusion No claims are allowed. THIS ACTION IS MADE FINAL. 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 LIYUAN MOU whose telephone number is (571)270-1791. The examiner can normally be reached Mon-Fri 9:00-5:30. 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, Amy L Clark can be reached on (571)272-1310. 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. /LIYUAN MOU/Examiner, Art Unit 1628 /AMY L CLARK/Supervisory Patent Examiner, Art Unit 1628
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Prosecution Timeline

Show 11 earlier events
Mar 10, 2025
Response Filed
Jun 09, 2025
Final Rejection mailed — §103
Aug 05, 2025
Response after Non-Final Action
Aug 08, 2025
Request for Continued Examination
Aug 11, 2025
Response after Non-Final Action
Nov 05, 2025
Non-Final Rejection mailed — §103
Apr 23, 2026
Response Filed
Jun 26, 2026
Final Rejection mailed — §103 (current)

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1y 0m to grant Granted Mar 31, 2026
Patent 12576087
NOVEL ARYLOXYPIPERIDINE PYRAZOLE COMPOUNDS AS INDOLEAMINE 2,3-DIOXYGENASE INHIBITORS
5y 0m to grant Granted Mar 17, 2026
Patent 12551482
AURORA KINASE INHIBITORS
4y 5m to grant Granted Feb 17, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

7-8
Expected OA Rounds
43%
Grant Probability
99%
With Interview (+56.4%)
3y 0m (~3m remaining)
Median Time to Grant
High
PTA Risk
Based on 112 resolved cases by this examiner. Grant probability derived from career allowance rate.

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