Prosecution Insights
Last updated: August 18, 2026
Application No. 17/921,553

STEM CELL DRUG FOR TREATING DIABETES

Non-Final OA §112
Filed
Oct 26, 2022
Priority
Apr 26, 2020 — CN 202010340419.7 +1 more
Examiner
UNDERDAHL, THANE E
Art Unit
1699
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Soochow University
OA Round
3 (Non-Final)
59%
Grant Probability
Moderate
3-4
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 59% of resolved cases
59%
Career Allowance Rate
322 granted / 547 resolved
-1.1% vs TC avg
Strong +51% interview lift
Without
With
+50.6%
Interview Lift
resolved cases with interview
Typical timeline
3y 8m
Avg Prosecution
41 currently pending
Career history
585
Total Applications
across all art units

Statute-Specific Performance

§101
4.8%
-35.2% vs TC avg
§103
40.1%
+0.1% vs TC avg
§102
13.2%
-26.8% vs TC avg
§112
25.1%
-14.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 547 resolved cases

Office Action

§112
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 . Continued Examination Under 37 CFR 1.114 A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after final rejection. Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on 4/7/26 has been entered. Response to Applicant’s Arguments and Amendments In the response submitted by the Applicant the following 35 U.S.C § 112(a) rejections are withdrawn: Claim 1-3, and 5-14 were rejected under 35 U.S.C. 112(a) or 35 U.S.C. 112 (pre-AIA ), first paragraph, because the specification, while being enabling for treating or alleviate the obesity and the metabolic diseases listed in claim 3, does not reasonably provide enablement for prevention of obesity or metabolic diseases nor does it provide enablement for alleviation or treatment of metabolic diseases that do not result from high fat and glucose intake such as gout or hypokalemia. The Applicant has amended the claims to diseases that are enabled by the Specification. All arguments drawn to these rejections are now considered moot. Allowable with Closest Prior Art Claims 1-3, 5, 6, 8-14 are allowable. The closest prior art is Brodie et al. (WO2018/083700, previously cited). However they do not teach muscle cells with the claimed markers. In particular PAX7 is not typically found in mesenchymal stem cells but specific for muscle satellite cells (see Seale et al., abstract and Sincennes, pg. 2, left column 1st full paragraph). Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(d): (d) REFERENCE IN DEPENDENT FORMS.—Subject to subsection (e), a claim in dependent form shall contain a reference to a claim previously set forth and then specify a further limitation of the subject matter claimed. A claim in dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers. The following is a quotation of pre-AIA 35 U.S.C. 112, fourth paragraph: Subject to the following paragraph [i.e., the fifth paragraph of pre-AIA 35 U.S.C. 112], a claim in dependent form shall contain a reference to a claim previously set forth and then specify a further limitation of the subject matter claimed. A claim in dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers. Claim 7 is rejected under 35 U.S.C. 112(d) or pre-AIA 35 U.S.C. 112, 4th paragraph, as being of improper dependent form for failing to further limit the subject matter of the claim upon which it depends, or for failing to include all the limitations of the claim upon which it depends. Claim 7 limits “wherein the improvement of muscle volume and strength” from claim 2. However claim 2 does not have a category for “muscle volume and strength” but instead “muscle mass and strength”. The difference between muscle mass and muscle volume appears to broaden the scope of claim 2 rather than narrow it. Applicant may cancel the claim(s), amend the claim(s) to place the claim(s) in proper dependent form, rewrite the claim(s) in independent form, or present a sufficient showing that the dependent claim(s) complies with the statutory requirements. Request for Interview The Examiner believes an interview would be useful in progressing this case since allowable subject matter is present in this invention. The Applicant is encourage to contact Thane Underdahl at (303) 297-4299 to discuss the claim amendments to place this case in condition for allowance prior to replying to this Office Action. In response to this office action the applicant should specifically point out the support for any amendments made to the disclosure, including the claims (MPEP 714.02 and 2163.06). CONTACT INFORMATION Any inquiry concerning this communication or earlier communications from the examiner should be directed to THANE E UNDERDAHL whose telephone number is (303) 297-4299. The examiner can normally be reached Monday through Thursday, M-F 8-5 MST. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Fereydoun Sajjadi can be reached at (571) 272-3311.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). If you would like assistance from a USPTO Customer Service Representative or access to the automated information system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /THANE UNDERDAHL/Primary Examiner, Art Unit 1699
Read full office action

Prosecution Timeline

Oct 26, 2022
Application Filed
Jun 11, 2025
Non-Final Rejection mailed — §112
Sep 11, 2025
Response Filed
Jan 14, 2026
Final Rejection mailed — §112
Apr 07, 2026
Response after Non-Final Action
May 10, 2026
Request for Continued Examination
May 11, 2026
Response after Non-Final Action
Jun 03, 2026
Non-Final Rejection mailed — §112 (current)

Precedent Cases

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
59%
Grant Probability
99%
With Interview (+50.6%)
3y 8m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 547 resolved cases by this examiner. Grant probability derived from career allowance rate.

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