Prosecution Insights
Last updated: April 18, 2026
Application No. 17/912,394

USE OF MITOCHONDRIAL EXTRACT TO TREAT AND/OR PREVENT KIDNEY INJURY-RELATED DISEASE

Non-Final OA §102§103
Filed
Sep 16, 2022
Examiner
UNDERDAHL, THANE E
Art Unit
1699
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Taiwan Mitochondrion Applied Technology Co. Ltd.
OA Round
3 (Non-Final)
59%
Grant Probability
Moderate
3-4
OA Rounds
3y 9m
To Grant
99%
With Interview

Examiner Intelligence

Grants 59% of resolved cases
59%
Career Allow Rate
315 granted / 537 resolved
-1.3% vs TC avg
Strong +50% interview lift
Without
With
+50.4%
Interview Lift
resolved cases with interview
Typical timeline
3y 9m
Avg Prosecution
34 currently pending
Career history
571
Total Applications
across all art units

Statute-Specific Performance

§101
3.9%
-36.1% vs TC avg
§103
39.5%
-0.5% vs TC avg
§102
13.3%
-26.7% vs TC avg
§112
23.0%
-17.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 537 resolved cases

Office Action

§102 §103
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 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and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114.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 3/12/26 has been entered. Response to Applicant’s Arguments and Amendments In the response submitted by the Applicant the following 35 U.S.C § 102 rejections are withdrawn: Claim(s) 1, 3, and 4 were rejected under 35 U.S.C. 102(a)(1) as being anticipated by Ohana et al. (WO 2020/021534, published Jan 30th, 2020); The following 35 U.S.C § 103 (a) rejections are withdrawn: Claim(s) 1-12 were rejected under 35 U.S.C. 103 as being unpatentable over Ohana et al. (WO 2020/021534, published Jan 30th, 2020) in light of support by Medline Plus (Acute tubular necrosis), Gil et al. (Chest, 2005), and Cho et al. (Korean J Pediatr 2010); The Applicant’s amendments limiting the composition to comprise isolated mitochondria and is cell-free necessitated the above withdrawals. All arguments drawn to these rejections are now considered moot. 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. Claim(s) 1, 3, 4, 9, 10, 11, 13 and 14 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by McCully et al. (WO 2017/124037) in light of support by Glas et al. (J. Cell Biol. 1966, previously presented). These claims contain product-by-process limitations on how the mitochondria for the composition are isolated. MPEP 2133 is clear that it is the final structure of the composition is examined and the method of making is only considered when it imparts structural limitations to the claims. In this case the homogenization buffer is not a limitation that appears to add a structural component since the buffer is removed by centrifugation when the mitochondria are isolated as a precipitate. Therefore art reading on the structure of the composition of claim 1 will also read on claims 13 and 14 since the buffer is not considered part of the final composition. McCully et al. teach administering a composition comprising cell-free mitochondria (to treat ischemia/reperfusion injury in a kidney (McCully, pg. 29, lines 30 to pg. 30, line 5). McCully et al. teach ischemia/reperfusion injuries result in inflammation in to the tissue (McCully, pg. 29, lines 23-25) and is associated with mitochondrial injury and dysfunction (McCully, pg. 29, lines 31-32). They teach the amount of mitochondria injected ranges from 1x 102 to 1x 1014 mitochondria (McCully, pg. 29, lines 5-20) and this amount is administered in multiple or single injections. Glas et al. teach mitochondria have a mass of 51.8 x 10-14 g or more specifically . This converts the mass of mitochondria administered by McCully et al. to 51.8 x 10-12 to 51.8 g. The upper amount exceeding 5 and 40 μg limited in claims 10 and 11. McCully et al. teach the mitochondria are isolated from animal tissue with a homogenization buffer and centrifugation to obtained a mitochondrial pellet (see Fig. 1, pg. 46-47). Therefore the invention as a whole is anticipated by the reference. 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. Claim(s) 1, 3, 4, and 9-14 is/are rejected under 35 U.S.C. 103 as being unpatentable over McCully et al. (WO 2017/124037) in light of support by Glas et al. (J. Cell Biol. 1966, previously presented). These claims contain product-by-process limitations on how the mitochondria for the composition are isolated. MPEP 2133 is clear that it is the final structure of the composition is examined and the method of making is only considered when it imparts structural limitations to the claims. In this case the homogenization buffer is not a limitation that appears to add a structural component since the buffer is removed by centrifugation when the mitochondria are isolated as a precipitate. Therefore art reading on the structure of the composition of claim 1 will also read on claims 13 and 14 since the buffer is not considered part of the final composition. McCully et al. teach administering a composition comprising cell-free mitochondria (to treat ischemia/reperfusion injury in a kidney (McCully, pg. 29, lines 30 to pg. 30, line 5). McCully et al. teach ischemia/reperfusion injuries result in inflammation in to the tissue (McCully, pg. 29, lines 23-25) and is associated with mitochondrial injury and dysfunction (McCully, pg. 29, lines 31-32). They teach the amount of mitochondria injected ranges from 1x 102 to 1x 1014 mitochondria (McCully, pg. 29, lines 5-20) and this amount is administered in multiple or single injections. Glas et al. teach mitochondria have a mass of 51.8 x 10-14 g or more specifically . This converts the mass of mitochondria administered by McCully et al. to 51.8 x 10-12 to 51.8 g. The upper amount exceeding 5 μg and 40 μg limited in claims 10 and 11. McCully et al. teach the mitochondria are isolated from animal tissue with a homogenization buffer and centrifugation to obtained a mitochondrial pellet (see Fig. 1, pg. 46-47). What McCully et al. does not teach is the volume or concentration of the 51.8 x 10-12 to 51.8 g of mitochondria injected into the kidney. Nor do they specifically teach administering 15-40 μg of mitochondria. However this is a matter that could be met by routine optimization of the range of mitochondria administered (i.e. 51.8 x 10-12 to 51.8 g of mitochondria) at a concentration suitable for injection to the subject to treat ischemia/reperfusion injury in a kidney (MPEP 2144.05). Therefore the invention as a whole would have been prima facie obvious to one of ordinary skill in the art at the time the invention was made, as evidenced by the references, especially in the absence of evidence to the contrary. Claim Objections Claims 2, and 5-8 are objected to for being free of the art but dependent from a rejected claim. 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

Sep 16, 2022
Application Filed
May 29, 2025
Non-Final Rejection — §102, §103
Aug 22, 2025
Response Filed
Dec 10, 2025
Final Rejection — §102, §103
Feb 24, 2026
Examiner Interview (Telephonic)
Feb 24, 2026
Examiner Interview Summary
Mar 12, 2026
Request for Continued Examination
Mar 17, 2026
Response after Non-Final Action
Apr 03, 2026
Non-Final Rejection — §102, §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12599635
COMPOSITIONS AND TREATMENTS FOR ISCHEMIC INJURIES
2y 5m to grant Granted Apr 14, 2026
Patent 12594011
CMOS-BASED LOW-POWER, LOW-NOISE POTENTIOSTAT CIRCUIT AND ITS INTEGRATION WITH AN ENFM-BASED GLUCOSE SENSOR
2y 5m to grant Granted Apr 07, 2026
Patent 12577573
SYNTHETIC PRODUCTION OF SINGLE-STRANDED ADENO ASSOCIATED VIRAL DNA VECTORS
2y 5m to grant Granted Mar 17, 2026
Patent 12576112
INHIBITION OF TNF-ALPHA BY FIBROBLASTS AND FIBROBLAST EXOSOMES
2y 5m to grant Granted Mar 17, 2026
Patent 12570962
PREPARATION OF HUMAN PLATELET LYSATE (HPL) FROM REFRIGERATED WHOLE BLOOD PLATELETS
2y 5m to grant Granted Mar 10, 2026
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

3-4
Expected OA Rounds
59%
Grant Probability
99%
With Interview (+50.4%)
3y 9m
Median Time to Grant
High
PTA Risk
Based on 537 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