Prosecution Insights
Last updated: October 04, 2026
Application No. 19/005,543

METHOD OF CULTURING CELL, METHOD OF MANUFACTURING CELL SUPPORT COMPLEX, CULTURED CELL, AND CELL SUPPORT COMPLEX

Non-Final OA §101§102
Filed
Dec 30, 2024
Priority
Mar 22, 2018 — JP 2018054310 +2 more
Examiner
GU, QINHUA
Art Unit
Tech Center
Assignee
Nikkiso Co., Ltd.
OA Round
1 (Non-Final)
76%
Grant Probability
Favorable
1-2
OA Rounds
2y 0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 76% — above average
76%
Career Allowance Rate
63 granted / 83 resolved
+15.9% vs TC avg
Strong +28% interview lift
Without
With
+27.8%
Interview Lift
resolved cases with interview
Typical timeline
3y 10m
Avg Prosecution
50 currently pending
Career history
126
Total Applications
across all art units

Statute-Specific Performance

§101
2.3%
-37.7% vs TC avg
§103
47.3%
+7.3% vs TC avg
§102
16.0%
-24.0% vs TC avg
§112
25.5%
-14.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 83 resolved cases

Office Action

§101 §102
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 . Priority This application is a DIVISION of U.S. Patent Application No. 17/006,138, filed 12/30/2024. Acknowledgement is made of the applicant’s claim for benefit to prior-filed U.S. patent applications 17/006,138 (filed 08/28/2020) and PCT Application PCT/JP2019/011389 (filed 03/19/2019), as well as foreign priority based on an application JP2018054310 filed in Japan on 03/22/2018. Claim Objections Claim 2 is objected to because of the following informalities: Claim 2 has extra spaces between the word “wherein” and the word “the” in line 1. Appropriate correction is required. Claim Interpretation Instant claims 1-2 are directed to a cultured cell (a product), the cell is manufactured by the method as recited in instant claims. The claims are product-by-process claims. MPEP 2113 states: "[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). In instant case, the disclosure of the structure is a cultured cell (i.e., a cell which is alive under in vitro condition), and more specifically, a cultured renal cell. Claim Rejections - 35 USC § 101 35 U.S.C. 101 reads as follows: Whoever invents or discovers any new and useful process, machine, manufacture, or composition of matter, or any new and useful improvement thereof, may obtain a patent therefor, subject to the conditions and requirements of this title. Claims 1-2 are rejected under 35 U.S.C. 101 because the claimed invention is directed to a judicial exception (a product of nature) without reciting additional elements that amount to significantly more than the exception. As stated above, claim 1 is directed to a composition of matter (a cultured cell). As such, the claim falls within a statutory category (Step 1: YES). However, the claimed composition recites only nature-based components, namely a cell, grown outside of a living organism in an artificial environment such as a culture vessel. A cell is a naturally occurring material, which can be alive/grown in vivo (i.e., in a living organism such as animal) or in vitro (i.e., in culture vessel). The claimed cultured cell is therefore a nature-based product that must be analyzed to determine whether it is “markedly different” from its naturally occurring counterparts under the markedly different characteristics analysis set forth in MPEP 2106.04(c) and related guidance. Under Step 2A, Prong 1, the claim recites a nature-based product limitation, namely a cultured cell. Under Step 2A, Prong 2, the cultured cell is compared to its closest natural counterparts, which is a cell of a living organism such as a cell in animal tissue. The claim does not positively recite any structural, functional, or other property of the cell that is different from, or improved over, the properties of a cell as it occurs in nature. The cultured cell in the claim remains a (viable) cell, there is no indication in the claim of a change in structure (e.g., fractionation, chemical modification, or formation of a new substance) or of a new functional characteristic (e.g., unexpected or changed cell function) that is markedly different from the natural products themselves. Merely place a cell (originally from a living organism) in vitro (i.e., in a culture vessel) to grow/keep it alive, does not by itself confer markedly different characteristics when the components retain their natural properties, as explained in USPTO examples and case law applying the product-of-nature exception. Accordingly, the claimed composition is directed to a product-of-nature judicial exception (Step 2A: YES). Under Step 2B, the claim is evaluated to determine whether any additional elements, individually or in combination, amount to significantly more than the product-of-nature exception. The only elements in the claim are the nature-based product components (a cell), together with the statement of cell growing condition (being cultured, i.e., in vitro in a culture vessel). The recited cell culturing condition is a limitation that does not impose any structural or functional requirement on the cell beyond its natural properties, and therefore does not amount to significantly more than the judicial exception. The claim as a whole therefore does not include any additional features that integrate the product-of-nature exception into a practical application, nor does it add an inventive concept sufficient to amount to significantly more than the judicial exception itself. For these reasons, claim 1 is rejected under 35 U.S.C. 101 as being directed to a judicial exception (a product of nature) without reciting additional elements that amount to significantly more than the exception. Claim 2 further limits the cultured cell is a renal cell, based on the same reason, is also rejected under 35 U.S.C. 101. Claim Rejections - 35 USC § 102 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)(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. (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. Claims 1-2 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Valente et al. (PLoS One. 2011 May 4;6(5):e19337). As stated above, claims 1-2 are directed to a cultured cell, more specifically, a cultured renal cell. Valente et al. teach a technically simple and rapid protocol for the isolation and culture of human proximal tubular epithelial cells and human renal tumor cells from surgical specimens (Abstract). Human proximal tubular epithelial cells (HPTEC) correspond to the major cell type in the human cortical tubulointerstitium (p1, left column), the HPTEC is a renal cell. A cultured HPTEC (see, i.e., p5, figure 3A) reads on the cultured renal cell as recited in instant claims. Thus Valente et al. anticipate instant claims. Conclusion No claims are allowed. Any inquiry concerning this communication or earlier communications from the examiner should be directed to QINHUA GU whose telephone number is (703)756-1176. The examiner can normally be reached M-F: 9:00 - 5:00. 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, Christopher Babic can be reached at (571)272-8507. 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. /Q.G./ Examiner, Art Unit 1633 /FEREYDOUN G SAJJADI/Supervisory Patent Examiner, Art Unit 1699
Read full office action

Prosecution Timeline

Dec 30, 2024
Application Filed
Sep 24, 2026
Non-Final Rejection mailed — §101, §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12697397
MODIFIED ADENO-ASSOCIATED VIRUS VECTORS AND DELIVERY THEREOF INTO THE CENTRAL NERVOUS SYSTEM
4y 1m to grant Granted Aug 04, 2026
Patent 12697355
METHOD FOR TREATING INFLAMMATORY LUNG DISEASES USING MESENCHYMAL LINEAGE PRECURSOR OR STEM CELLS
3y 11m to grant Granted Aug 04, 2026
Patent 12686854
METHOD FOR ENHANCING SECRETORY FUNCTION OF MESENCHYMAL STEM CELLS AND APPLICATION THEREOF
4y 0m to grant Granted Jul 21, 2026
Patent 12662660
METHODS FOR AMPLIFYING AND DIFFERENTIATING PANCREATIC CELLS, AND APPLICATION THEREOF
4y 1m to grant Granted Jun 23, 2026
Patent 12605312
PREPARATION METHOD AND APPLICATION OF SINGLE EMULSIFIER AND DOUBLE EMULSION BASED ON DNA TRIANGULAR ORIGAMI TECHNOLOGY
3y 11m to grant Granted Apr 21, 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
76%
Grant Probability
99%
With Interview (+27.8%)
3y 10m (~2y 0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 83 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