Prosecution Insights
Last updated: July 17, 2026
Application No. 18/552,081

METHODS OF TREATMENT FOR FAILURE TO THRIVE

Non-Final OA §102§112§DOUBLEPATENT
Filed
Sep 22, 2023
Priority
Mar 26, 2021 — provisional 63/166,400 +1 more
Examiner
FIEBIG, RUSSELL G
Art Unit
1655
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Prolacta Bioscience Inc.
OA Round
1 (Non-Final)
63%
Grant Probability
Moderate
1-2
OA Rounds
2m
Est. Remaining
88%
With Interview

Examiner Intelligence

Grants 63% of resolved cases
63%
Career Allowance Rate
552 granted / 880 resolved
+2.7% vs TC avg
Strong +26% interview lift
Without
With
+25.8%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
56 currently pending
Career history
932
Total Applications
across all art units

Statute-Specific Performance

§101
6.4%
-33.6% vs TC avg
§103
68.4%
+28.4% vs TC avg
§102
4.2%
-35.8% vs TC avg
§112
7.0%
-33.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 880 resolved cases

Office Action

§102 §112 §DOUBLEPATENT
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 . Applicant’s election without traverse of Group I, claims 1, 3-9, 11, 15-21, 25 and 26, in the reply filed on 27 February 2026 is acknowledged. Claim Status Claims 2, 10, 12-14, 22-24 and 27-28 have been cancelled. Claims 29-30 are withdrawn as being directed to a nonelected invention. Claims 1, 3-9, 11, 15-21, 25 and 26 are presented for examination on the merits. 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 6, 15-18 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. Claim 6 is rendered vague and indefinite because it is unclear how this is meant to differ from administration of human milk. That is- human milk itself is a composition that contains human milk cream. Furthermore, if “the human milk cream composition is mixed with human milk” as recited in claim 6, what is actually being administered? According to claim 1 what is administered in the claimed method is a “human milk cream composition”, which “comprises from 20% to 30% human milk fat and from 2.0 kcal/mL to 3.0 kcal/mL”. So the question is what is the composition that is being administered in claim 6 and what is its constituents (i.e, %milkfat and caloric value)? Claims 15-18 are rendered vague and indefinite by the phrase “the failure to thrive is associated with or suspected of being associated with …”. It is unclear how one is to determine the scope of the claim as it is not clear how close the “association” or the suspicion thereof need be to be covered. That is -- the term “associated” is in effect a relative term which renders the claim indefinite. The term is not defined by the claim, the specification does not provide a standard for ascertaining the requisite degree, and one of ordinary skill in the art would not be reasonably apprised of the scope of the invention. Likewise, the term “suspected” makes the association even more indefinite. Appropriate clarification is required. Claim Rejections - 35 USC § 102/103 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: 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)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. 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 1, 3-9, 11, 15-21, 25 and 26 are rejected under 35 U.S.C. 102(a)(2) as anticipated by or, in the alternative, under 35 U.S.C. 103(a) as obvious over Elster et al. (US2014/0272027) [cited by Applicant in IDS filed 9/22/23]. Elster et al. describes a human milk cream composition comprising pasteurized cream derived from human milk, wherein the composition comprises about 2.5 kcal/ml, wherein the composition comprises about 25% fat used for enteral nutrition in a low birth weight infant. Elster also describes a method of making a human milk cream composition comprising the steps of: (a) obtaining a pool of human milk, (b) separating the pool of human milk into a cream portion and a skim milk portion (ultracentrifugation), (c) formulating the cream portion to obtain a cream composition comprising about 2.5 kcal/ml, and (d) pasteurizing the cream composition. The results of Elster et al. indicated that infants in the cream test group grew at a faster pace with respect to weight for example to preterm infants with inclusion criteria: birth weight between 750 and 1250 g (less than 3rd percentile); have a reasonable expectation of survival for the maximum duration of the study (through 36 weeks corrected gestational age or weaned from fortification, whichever came first); be able to adhere to a feeding protocol involving mother's own milk/donor milk that will include fortification using Prolact+H<2>MF® and, potentially, human cream; enteral feeding must begin before the 21day of life; informed consent obtained from parent or legal guardian (claims 1-24, Ex.1-2). The human cream compositions described herein may be used as supplemental nutrition. Accordingly, the human cream compositions described herein may be administered enterally or orally (e.g., bottle feeding) (paragraph 0058). The disclosed human cream compositions are particularly useful for supplementing human milk for infants, especially LBW infants, in order to raise the caloric content of the human milk to a desired level. Human milk is often administered enterally to preterm infants in the NICU. Enteral nutrition is a practice of tube feeding, e.g., nasogastric, transpyloric, and percutaneous. Human milk (e.g., mother's own or donor) often does not meet the caloric requirements of a LBW infant therefore the human cream composition of the current invention is added to the human milk, thereby increasing the caloric content while also maintaining the entirely human milk diet of the infant and avoiding the complications associated with TPN. In one embodiment, the enteral nutrition comprising the human cream composition is for a preterm or LBW infant (paragraph 0059). The cited reference does not explicitly disclose treating “failure to thrive”. As Applicant points out in the instant Specification “[w]hile it may result from various underlying physical or psychosocial causes, failure to thrive generally involves a lack of necessary calories for adequate growth. This could be from not taking in enough calories, losing too many calories, or increased caloric demand”. Consequently, the claimed method appears to be anticipated by the cited reference. Alternatively, the instant claims rejected under U.S.C. 103(a) as being unpatentable over Elster et al. (US2014/0272027). It would have been obvious to one of ordinary skill in the art at the time the effective filing date of the claimed invention to administer the human cream composition to infants in need of caloric supplementation as taught by Elster et al., such as those infants whose weight for age falls below the tenth or fifth percentile on multiple occasions or weight deceleration that crosses two major percentile lines on a growth chart. In KSR Int'l Co. v. Teleflex Inc., 550 U.S. 398 (2007), the Supreme Court emphasized a flexible approach to the obviousness question, stating that the analysis under 35 U.S.C. § 103 "need not seek out precise teachings directed to the specific subject matter of the challenged claim, for a court can take account of the inferences and creative steps that a person of ordinary skill in the art would employ." Id. at 418; see also id. at 421 ("A person of ordinary skill is... a person of ordinary creativity, not an automaton."). In KSR, the Supreme Court indicated that the obviousness analysis should consider the “background knowledge possessed by a person having ordinary skill in the art.” KSR Int’l Co. v. Teleflex, Inc., 550 U.S. 398 (2007). Under KSR, information deemed within PHOSITA’s general knowledge is more powerful than that found buried in a prior art reference because we assume that PHOSITA would consider using their general knowledge in combination with the prior art — even absent any express motivation to do so. Under 35 U.S.C. § 103, the obviousness inquiry turns not only on the prior art, but whether “the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious . . . to a person having ordinary skill in the art to which the claimed invention pertains.” 35 U.S.C. § 103. Regardless of the tribunal, the inquiry into whether any “differences” between the invention and the prior art would have rendered the invention obvious to a skilled artisan necessarily depends on such artisan’s knowledge. If necessary, the adjustment of particular conventional working conditions (e.g., employing common method of administration, determining the optimal dosage based on desired effect and the individual response of the subject, etc.) is deemed merely a matter of judicious selection and routine optimization which is well within the purview of the skilled artisan. Accordingly, the claimed invention as a whole was at least prima facie obvious, if not anticipated by the reference, especially in the absence of sufficient, clear, and convincing evidence to the contrary. Double Patenting The nonstatutory double patenting rejection is based on a judicially created doctrine grounded in public policy (a policy reflected in the statute) so as to prevent the unjustified or improper timewise extension of the “right to exclude” granted by a patent and to prevent possible harassment by multiple assignees. A nonstatutory double patenting rejection is appropriate where the conflicting claims are not identical, but at least one examined application claim is not patentably distinct from the reference claim(s) because the examined application claim is either anticipated by, or would have been obvious over, the reference claim(s). See, e.g., In re Berg, 140 F.3d 1428, 46 USPQ2d 1226 (Fed. Cir. 1998); In re Goodman, 11 F.3d 1046, 29 USPQ2d 2010 (Fed. Cir. 1993); In re Longi, 759 F.2d 887, 225 USPQ 645 (Fed. Cir. 1985); In re Van Ornum, 686 F.2d 937, 214 USPQ 761 (CCPA 1982); In re Vogel, 422 F.2d 438, 164 USPQ 619 (CCPA 1970); In re Thorington, 418 F.2d 528, 163 USPQ 644 (CCPA 1969). A timely filed terminal disclaimer in compliance with 37 CFR 1.321(c) or 1.321(d) may be used to overcome an actual or provisional rejection based on nonstatutory double patenting provided the reference application or patent either is shown to be commonly owned with the examined application, or claims an invention made as a result of activities undertaken within the scope of a joint research agreement. See MPEP § 717.02 for applications subject to examination under the first inventor to file provisions of the AIA as explained in MPEP § 2159. See MPEP § 2146 et seq. for applications not subject to examination under the first inventor to file provisions of the AIA . A terminal disclaimer must be signed in compliance with 37 CFR 1.321(b). The filing of a terminal disclaimer by itself is not a complete reply to a nonstatutory double patenting (NSDP) rejection. A complete reply requires that the terminal disclaimer be accompanied by a reply requesting reconsideration of the prior Office action. Even where the NSDP rejection is provisional the reply must be complete. See MPEP § 804, subsection I.B.1. For a reply to a non-final Office action, see 37 CFR 1.111(a). For a reply to final Office action, see 37 CFR 1.113(c). A request for reconsideration while not provided for in 37 CFR 1.113(c) may be filed after final for consideration. See MPEP §§ 706.07(e) and 714.13. The USPTO Internet website contains terminal disclaimer forms which may be used. Please visit www.uspto.gov/patent/patents-forms. The actual filing date of the application in which the form is filed determines what form (e.g., PTO/SB/25, PTO/SB/26, PTO/AIA /25, or PTO/AIA /26) should be used. A web-based eTerminal Disclaimer may be filled out completely online using web-screens. An eTerminal Disclaimer that meets all requirements is auto-processed and approved immediately upon submission. For more information about eTerminal Disclaimers, refer to www.uspto.gov/patents/apply/applying-online/eterminal-disclaimer. Claims 1, 3-9, 11, 15-21, 25 and 26 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-14 of U.S. Patent No. 12,063,943. Although the claims at issue are not identical, they are not patentably distinct from each other because both sets of claims are employing the same human milk cream composition and administering it to infants in need of caloric supplementation. Conclusion No claims are allowed. Any inquiry concerning this communication or earlier communications from the examiner should be directed to RUSSELL G FIEBIG whose telephone number is (571)270-5366. The examiner can normally be reached M-F 8-4. 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, Anand Desai can be reached at 5712720947. 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. /RUSSELL G FIEBIG/Examiner, Art Unit 1655
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Prosecution Timeline

Sep 22, 2023
Application Filed
Apr 03, 2026
Non-Final Rejection mailed — §102, §112, §DOUBLEPATENT (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
88%
With Interview (+25.8%)
3y 0m (~2m remaining)
Median Time to Grant
Low
PTA Risk
Based on 880 resolved cases by this examiner. Grant probability derived from career allowance rate.

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