Prosecution Insights
Last updated: April 19, 2026
Application No. 17/930,842

STEM CELL STIMULATING COMPOSITIONS AND METHODS

Non-Final OA §103
Filed
Sep 09, 2022
Examiner
YU, HONG
Art Unit
1614
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Medicell Technologies LLC
OA Round
11 (Non-Final)
31%
Grant Probability
At Risk
11-12
OA Rounds
4y 0m
To Grant
37%
With Interview

Examiner Intelligence

Grants only 31% of cases
31%
Career Allow Rate
214 granted / 681 resolved
-28.6% vs TC avg
Moderate +5% lift
Without
With
+5.3%
Interview Lift
resolved cases with interview
Typical timeline
4y 0m
Avg Prosecution
73 currently pending
Career history
754
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
49.5%
+9.5% vs TC avg
§102
16.7%
-23.3% vs TC avg
§112
15.1%
-24.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 681 resolved cases

Office Action

§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 . 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 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. DETAILED ACTION 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and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114.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 02/12/2026 has been entered. Status of claims The amendment filed on 02/12/2026 is acknowledged. Claims 18, 20, 22, and 23 have been canceled. Claims 1-17, 19, and 21 are under examination in the instant office action. Rejections withdrawn Applicant’s amendments and arguments filed on 02/12/2026 are acknowledged and have been fully considered. Any rejection and/or objection not specifically addressed below is herein withdrawn. The following rejections and/or objections are either reiterated or newly applied. They constitute the complete set of rejections and/or objections presently being applied to the instant application. Rejections maintained The following rejections of the claims are maintained for reasons of record and the following. The rejections are modified based on the amendments. 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. This application currently names joint inventors. In considering patentability of the claims under 35 U.S.C. 103(a), the examiner presumes that the subject matter of the various claims was commonly owned at the time any inventions covered therein were made absent any evidence to the contrary. Applicant is advised of the obligation under 37 CFR 1.56 to point out the inventor and invention dates of each claim that was not commonly owned at the time a later invention was made in order for the examiner to consider the applicability of 35 U.S.C. 103(c) and potential 35 U.S.C. 102(e), (f) or (g) prior art under 35 U.S.C. 103(a). 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(a) 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 1-6, 10-17, 19, and 21 are rejected under 35 U.S.C. 103(a) as being unpatentable over Hillman (US 2009/0048167 A1) in view of Misso (US 2012/0259011 A1). Hillman teaches methods for the treatment of skin wrinkles in human (i.e., non-injured skin → the claimed healthy skin in step a) according to the instant specification paragraph 26, skin wrinkles are caused by decrease in skin elasticity and loss of tight junctions of epithelial cells → the claimed treatment of decrease in skin elasticity in step b) and the claimed improving tight junctions of epithelial cells in the instant claim 19, the claimed improving skin condition in the instant claim 1, the claimed skin surface imperfection in the instant claim 21), etc., (paragraph 51, 56, 182, and 220) comprising topically administrating (paragraph 50), one or more antimicrobial peptide (AMP) or analog thereof including about 2 ng/mL to about 10 μg/mL of human defensins including β-defensins 1-6 (encompassing the claimed mixture of 1st defensin β-defensin 3 and 2nd defensin β-defensin 1 in the instant claims 1, 3, 4, 11-17, within the claimed concentration of instant claims 5 and 16 and thus meets the claimed concentration of instant claims 1, 2, and 13 and obvious to the claimed concentration of claims 6 and 17) and excipients such as types of starch, gelatin (the instant claim 10), etc., (paragraph 234). Hillman does not teach the types of starch including tapioca starch (one of the components ii) in the instant claim 1). This deficiency is cured by Misso who teaches tapioca starch being a thickener in a topical composition (abstract and paragraph 39). It would have been prima facie obvious before the effective filing date of the claimed invention to a person of ordinary skill in the art to combine the teachings in Hillman and Misso to specify the types of starch in a topical composition including tapioca starch. Tapioca starch being a thickener in a topical composition was well known to a person of ordinary skill in the art at the time of the invention. The motivation for specifying it flows from its having been used in the prior art, and from its being recognized in the prior art as useful for the same purpose. Response to Applicants’ arguments: Applicant’s arguments based on the amendments are addressed in the modified rejection above (newly underlined). Claims 7-9 are rejected under 35 U.S.C. 103(a) as being unpatentable over Hillman (US 2009/0048167 A1) and Misso (US 2012/0259011 A1), as applied to claims 1-6, 10-17, 19, and 21, further in view of Viladot Petit et al. (US 2013/0017239 A1). The teachings of Hillman are discussed above and applied in the same manner. Hillman does not specify the defensins being encapsulated in a nanoparticle and the defensin is associated with a protein albumin carrier. This deficiency is cured by Viladot Petit et al. who teach topical pharmaceutical compositions comprising lipid nanoparticles containing at least one active ingredient and which are polymerically coated with a protein albumin (genus of the albumins in the instant claim 9) (claims 1, 5, 6, and 10). It would have been prima facie obvious before the effective filing date of the claimed invention to a person of ordinary skill in the art to combine the teachings in Hillman and Viladot Petit et al. to specify the defensins in the topical pharmaceutical composition being encapsulated in nanoparticle coated (associated) with protein albumin. Active ingredients in topical pharmaceutical compositions being encapsulated in protein albumin coated nanoparticles was well known to a person of ordinary skill in the art at the time of the invention. The motivation for specifying it flows from its having been used in the prior art, and from its being recognized in the prior art as useful for the same purpose. Response to Applicants’ arguments: Argument regarding the 103 rejection is basically the same as the above 103 rejection, thus the response discussed above applies here as well and is not persuasive for reason discussed above. Correspondence Any inquiry concerning this communication or earlier communications from the examiner should be directed to HONG YU whose telephone number is (571)270-1328. The examiner can normally be reached on 9 am - 5:30 pm. 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, Ali Soroush can be reached on 571-272-9925. 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. /HONG YU/ Primary Examiner, Art Unit 1614
Read full office action

Prosecution Timeline

Sep 09, 2022
Application Filed
Oct 22, 2022
Non-Final Rejection — §103
Jan 26, 2023
Response Filed
Feb 02, 2023
Final Rejection — §103
May 01, 2023
Request for Continued Examination
May 02, 2023
Response after Non-Final Action
May 03, 2023
Non-Final Rejection — §103
Jun 09, 2023
Response Filed
Jul 10, 2023
Final Rejection — §103
Jan 10, 2024
Request for Continued Examination
Jan 17, 2024
Response after Non-Final Action
Feb 15, 2024
Non-Final Rejection — §103
May 21, 2024
Response Filed
Jun 27, 2024
Final Rejection — §103
Sep 27, 2024
Request for Continued Examination
Oct 01, 2024
Response after Non-Final Action
Oct 16, 2024
Non-Final Rejection — §103
Jan 16, 2025
Response Filed
Jan 30, 2025
Final Rejection — §103
Apr 30, 2025
Request for Continued Examination
May 02, 2025
Response after Non-Final Action
May 13, 2025
Non-Final Rejection — §103
Aug 12, 2025
Response Filed
Aug 25, 2025
Final Rejection — §103
Feb 12, 2026
Request for Continued Examination
Feb 13, 2026
Response after Non-Final Action
Feb 18, 2026
Non-Final Rejection — §103 (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

11-12
Expected OA Rounds
31%
Grant Probability
37%
With Interview (+5.3%)
4y 0m
Median Time to Grant
High
PTA Risk
Based on 681 resolved cases by this examiner. Grant probability derived from career allow rate.

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