Prosecution Insights
Last updated: April 19, 2026
Application No. 18/285,409

COMPOSITION FOR INCREASING RED BLOOD CELLS AND/OR HEMOGLOBIN

Non-Final OA §102§103§DP
Filed
Oct 03, 2023
Examiner
CHONG, YONG SOO
Art Unit
1623
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Suntory Holdings Limited
OA Round
1 (Non-Final)
44%
Grant Probability
Moderate
1-2
OA Rounds
3y 8m
To Grant
84%
With Interview

Examiner Intelligence

Grants 44% of resolved cases
44%
Career Allow Rate
378 granted / 862 resolved
-16.1% vs TC avg
Strong +40% interview lift
Without
With
+40.1%
Interview Lift
resolved cases with interview
Typical timeline
3y 8m
Avg Prosecution
66 currently pending
Career history
928
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
44.3%
+4.3% vs TC avg
§102
18.5%
-21.5% vs TC avg
§112
14.2%
-25.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 862 resolved cases

Office Action

§102 §103 §DP
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 . Status of the Application Claims 9-12, 17-20 are pending and are examined herein. 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 9-12, 17-20 are rejected on the ground of nonstatutory double patenting as being unpatentable over the following applications individually: claims 5, 7-16 of copending Application No. 17/772,374; claims 6, 8 of copending Application No. 18/285,521; claims 5, 7 of copending Application No. 18/286,446; claims 7-9, 13-15 of copending Application No. 18/286,601; claims 7-8, 11-12 of copending Application No. 18/286,634; claims 1-9 of copending Application No. 18/552,715; claims 8, 10 of copending Application No. 18/552,718; and claims 5, 7 of copending Application No. 18/708,426. Although the claims at issue are not identical, they are not patentably distinct from each other because patient population of the instant claims reads on anyone since everyone is in need of prevention of anemia or fatigue. Therefore, since each of the referenced claims recite a method of administering L-ergothioneine at the claimed dosage for any reason, it would inherently read on the instant claims. This is a provisional obviousness-type double patenting rejection because the conflicting claims have not in fact been patented. Claim Rejections - 35 USC § 102 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)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale or otherwise available to the public before the effective filing date of the claimed invention. Claims 9-12 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Hausman (WO 2012/174035, of record). Hausman teaches methods of preventing or treating anemia, diabetes, and its various associated comorbidities by administering L-ergothioneine, which also stimulates red blood cell production with increased levels of hemoglobin (abstract and page 1, lines 7-10). The dosage can be from 0.01 to 50 mg/kg (page 19, lines 18-21). It is noted that the limitations regarding improving endurance and reducing, alleviating, or preventing fatigue or recovering from fatigue are inherent since these limitations will necessarily occur when the same active agent is administered to the same patient population as described in Hausman. Claim Rejections - 35 USC § 103 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 of this title, 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 set forth in Graham v. John Deere Co., 383 U.S. 1, 148 USPQ 459 (1966), that are applied 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. Claims 17-20 are rejected under 35 U.S.C. 103 as being unpatentable over Hausman (WO 2012/174035, of record) as applied to claims 9-12. The instant claims are directed to a method of preventing or treating anemia by administering 2 to 50 mg per day of L-ergothioneine. Hausman teaches as discussed above, however, fail to explicitly teach a dosage amount of 2 to 50 mg per day. It would have been prima facie obvious to a person of ordinary skill in the art, prior to the effective filing date of the claimed invention, to have formulated a dosage amount of 2 to 50 mg of L-ergothioneine in the method of preventing or treating anemia, as discussed by Hausman. A person of ordinary skill in the art would have been motivated to formulate a dosage amount of 2 to 50 mg because Hausman teaches, in general, that the dosage can be from 0.01 to 50 mg/kg. For an average human weighing 70 kg, this would equate to 0.7 to 3500 mg. Since 2-50 mg is encompassed by 0.7-3500 mg, it would be obvious for one skilled in the art to optimize this claimed dosage through routine experimentation based on known variables, such as sex, age, weight, severity of symptoms, etc. Examiner notes that this is a typical genus/species situation. Once a prima facie case of obviousness is established, the burden is shifted to the Applicant for objective evidence for nonobviousness. See MPEP 2144.08. Generally, mere optimization of ranges will not support the patentability of subject matter encompassed by the prior art unless there is evidence indicating such concentration or temperature is critical. “When the general conditions of a claim are disclosed in the prior art, it is not inventive to discover the optimal or workable ranges by routine experimentation. In re Aller, 220 F.2d 454, 456, 105 USPQ 233, 235 (CCPA 1955); “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 at 1330, 65 USPQ 2d at 1382; lt has been held that it is within the skills in the art to select optimal parameters, such as amounts of ingredients, in a composition in order to achieve a beneficial effect. In re Boesch, 205 USPQ 215 (CCPA 1980) MPEP 2114.04 Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to Yong S. Chong whose telephone number is (571)-272-8513. The examiner can normally be reached Monday to Friday: 9 AM to 5 PM EST. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Adam Milligan, can be reached at (571)-270-7674. The fax phone number for the organization where this application or proceeding is assigned is (571)-273-8300. Information regarding the status of an application may be obtained from the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see http://pair-direct.uspto.gov. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at (866)-217-9197 (toll-free). /Yong S. Chong/Primary Examiner, Art Unit 1623
Read full office action

Prosecution Timeline

Oct 03, 2023
Application Filed
Oct 03, 2023
Response after Non-Final Action
May 27, 2025
Response after Non-Final Action
Dec 16, 2025
Non-Final Rejection — §102, §103, §DP (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
44%
Grant Probability
84%
With Interview (+40.1%)
3y 8m
Median Time to Grant
Low
PTA Risk
Based on 862 resolved cases by this examiner. Grant probability derived from career allow rate.

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