Prosecution Insights
Last updated: April 19, 2026
Application No. 18/883,477

DRUG AND PRODUCTION METHOD THEREFOR

Non-Final OA §103
Filed
Sep 12, 2024
Examiner
NGUYEN, NGOC-ANH THI
Art Unit
1615
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Osaka University
OA Round
1 (Non-Final)
33%
Grant Probability
At Risk
1-2
OA Rounds
3y 6m
To Grant
82%
With Interview

Examiner Intelligence

Grants only 33% of cases
33%
Career Allow Rate
16 granted / 49 resolved
-27.3% vs TC avg
Strong +50% interview lift
Without
With
+49.8%
Interview Lift
resolved cases with interview
Typical timeline
3y 6m
Avg Prosecution
53 currently pending
Career history
102
Total Applications
across all art units

Statute-Specific Performance

§101
1.8%
-38.2% vs TC avg
§103
55.1%
+15.1% vs TC avg
§102
20.8%
-19.2% vs TC avg
§112
16.3%
-23.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 49 resolved cases

Office Action

§103
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 . Information Disclosure Statement The submitted information disclosure statements (IDSs) were filed on 09/12/2024 and 05/15/2025. The submission is in compliance with the provisions of 37 CFR 1.97. Accordingly, the information disclosure statement is being considered by the examiner. 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, 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 non-obviousness. Claim(s) 1-10 is/are rejected under 35 U.S.C. 103 as being unpatentable over Agarwal et al. (Agarwal et al., Effect of Oxidative Stress on Male Reproduction. World J Mens Health 2014 April 32(1): 1-17), in view of Begum et al. (Begum et al., Molecular hydrogen may enhance the production of testosterone hormone in male infertility through hormone signal modulation and redox balance. Medical Hypotheses 121 (2018) 6–9), and Kobayashi et al. (WO 2017130709 A1). Claims 1 and 4-5, Agarwal et al. teach effect of oxidative stress on male reproduction, (Title), and antioxidant supplementation work by halting the oxidative chain reaction-eliminating, taking up, or reducing the formation of reactive oxygen species. (pg. 12, right col. last par.). Agarwal et al. do not teach administering a silicon fine particle, an aggregate of silicon fine particles or a crystal grain of silicon to a subject suffering from the reproductive disorder, wherein the silicon fine particle, the aggregate of silicon fine particles or the crystal grain of silicon has a hydrogen-generating ability. Begum et al. teach molecular hydrogen may enhance the production of testosterone hormone in male infertility through hormone signal modulation and redox balance. (Title). Begum et al. do not teach administering a silicon fine particle, an aggregate of silicon fine particles or a crystal grain of silicon to a subject suffering from the reproductive disorder, wherein the silicon fine particle, the aggregate of silicon fine particles or the crystal grain of silicon has a hydrogen-generating ability. Kobayashi et al. (WO 2017130709 A1) teach one solid preparation of the present invention has fine silicon particles as a principal component thereof, and exhibits a hydrogen generation capacity. In addition, one embodiment of this solid preparation has fine silicon particles which for the most part have a crystallite size of 1-100nm, inclusive, as a principal component thereof, and exhibits a hydrogen generation capacity of 3ml/g or higher upon contact with a water-containing solution having a pH value of 7 or higher. According to this solid preparation, hydrogen is generated when fine silicon particles contact a water-containing solution having a pH value of 7 or higher. Consequently, by taking advantage of these properties, it is possible, for example, to promote hydrogen generation in a region of the digestive tract where the pH value is 7 or higher as a result of pancreatic fluid secretion following oral administration of said preparation and passage thereof through the stomach. (Abs). When the silicon nanoparticles were observed using an SEM (scanning electron microscope), some of the silicon nanoparticles were aggregated to form slightly larger, irregular aggregates of about 0.5 µm or less. (pg. 3, 5th par.). With regard to claims 2-3, and 9-10 Kobayashi et al. (WO 2017130709 A1) teach the coating layer that can be applied to the tablet is a known gastric insoluble enteric material that is a coating agent that covers the outermost layer of the tablet. Moreover, the example of the coating layer which can be applied to a capsule is the capsule itself manufactured from the well-known poorly enteric material which encloses Silicon fine particles (mainly the aggregate of silicon fine particles). (pg. 5, par. 6th). A glass bottle (with a borosilicate glass thickness of about 1 mm) having a capacity of 100 ml in a powdered state (ie, without mixing or kneading sodium bicarbonate powder) with 10 mg of Silicon nanoparticles described in the first embodiment. (pg. 6, par. 4th). Moreover, a well-known material can be employ | adopted about a disintegrating agent. In addition, a preferred example of a more suitable disintegrant is an organic acid, and the most preferred example is citric acid. (pg. 5, last par.). Here, the organic acid can also function as a binder that agglomerates the silicon nanoparticles. By adding 50 mg of citric acid (manufactured by Wako Pure Chemical Industries, Ltd., purity 99.5%) and kneading to 5 mg of silicon nanoparticles and 495 mg of sodium bicarbonate powder used in the first embodiment. (pg. 3, par. 7th). The pH value of the water-containing liquid was 8.3 due to the release of sodium bicarbonate and citric acid as the tablet disintegrated. (pg. 7, 1st par.). Sodium bicarbonate is an enteric coating to be released at pH 8.3. With regard to claim 6, Kobayashi et al. (WO 2017130709 A1) teach the silicon nanoparticles described in the first embodiment are immersed in a hydrofluoric acid aqueous solution having a concentration of 5% by mass for 10 minutes.(pg. 3, last par.). With regard to claims 7 and 8, Kobayashi et al. (WO 2017130709 A1) teach the same high-purity silicon particle powder as used in the first embodiment (typically, silicon particles having a crystal grain size of more than 1 µm. (pg. 4, 4th par.), which includes particle size between 1 and 5 µm. It would have been obvious to one of ordinary skill in the art before the effective filing date of the invention to learn the Effect of Oxidative Stress on Male Reproduction taught by Agarwal et al., molecular hydrogen may enhance the production of testosterone hormone in male infertility through hormone signal modulation and redox balance, taught by Begum et al.; and fine silicon particles have hydrogen generation capacity, to be able to apply hydrogen generated by silicon particle to treat oxidative stress in treating reproductive disorder, wherein the particles having bicarbonate enteric coating, generating hydrogen in a region of the digestive tract, for oral delivery, the preparation comprising a hydrofluoric acid aqueous solution, and the particles size between 1 and 5 µm, taught by Kobayashi et al., since they have clearly taught these ideas. Conclusion No Claim is allowed. Any inquiry concerning this communication or earlier communications from the examiner should be directed to NGOC-ANH THI NGUYEN whose telephone number is (571)270-0867. The examiner can normally be reached Monday - Friday 8:00 am. 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, Robert A Wax can be reached at 571-272-0623. 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. /NGOC-ANH THI NGUYEN/Examiner, Art Unit 1615 /Robert A Wax/Supervisory Patent Examiner, Art Unit 1615
Read full office action

Prosecution Timeline

Sep 12, 2024
Application Filed
Mar 04, 2026
Non-Final Rejection — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12589102
INJECTABLE SUSTAINED-RELEASE FORMULATIONS FOR TREATMENT OF JOINT PAIN AND INFLAMMATION
2y 5m to grant Granted Mar 31, 2026
Patent 12514932
PEG LIPIDOID COMPOUNDS
2y 5m to grant Granted Jan 06, 2026
Patent 12508226
LIPID COMPOSITION
2y 5m to grant Granted Dec 30, 2025
Patent 12486178
COPPER NANOCLUSTERS, COMPOSITION COMPRISING THE SAME, AND TREATMENT OF MULTIPLE SCLEROSIS
2y 5m to grant Granted Dec 02, 2025
Patent 12453805
Cryoprotective Compositions, Surgical Kits, and Methods for Protection of a Surgical Site During Cryosurgery
2y 5m to grant Granted Oct 28, 2025
Study what changed to get past this examiner. Based on 5 most recent grants.

AI Strategy Recommendation

Get an AI-powered prosecution strategy using examiner precedents, rejection analysis, and claim mapping.
Powered by AI — typically takes 5-10 seconds

Prosecution Projections

1-2
Expected OA Rounds
33%
Grant Probability
82%
With Interview (+49.8%)
3y 6m
Median Time to Grant
Low
PTA Risk
Based on 49 resolved cases by this examiner. Grant probability derived from career allow 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