Prosecution Insights
Last updated: May 29, 2026
Application No. 18/114,881

PROSTHETIC VALVES AND METHODS OF MAKING

Non-Final OA §103
Filed
Feb 27, 2023
Priority
Apr 06, 2017 — provisional 62/482,500 +2 more
Examiner
GHERBI, SUZETTE JAIME J
Art Unit
3774
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Regents Of The University Of Minnesota
OA Round
1 (Non-Final)
85%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
94%
With Interview

Examiner Intelligence

Grants 85% — above average
85%
Career Allowance Rate
1166 granted / 1373 resolved
+14.9% vs TC avg
Moderate +9% lift
Without
With
+8.8%
Interview Lift
resolved cases with interview
Typical timeline
2y 5m
Avg Prosecution
20 currently pending
Career history
1403
Total Applications
across all art units

Statute-Specific Performance

§101
0.8%
-39.2% vs TC avg
§103
49.5%
+9.5% vs TC avg
§102
13.4%
-26.6% vs TC avg
§112
4.3%
-35.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1373 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 . Election/Restrictions Applicant’s election without traverse of Group I (claims 2-10) in the reply filed on 12/16/25 is acknowledged. Claims 11-18 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected invention, there being no allowable generic or linking claim. 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) 2-10 are rejected under 35 U.S.C. 103 as being unpatentable over Fish et al. 9,737,400 in view of Blum et al. 2013/0013086. PNG media_image1.png 362 390 media_image1.png Greyscale PNG media_image2.png 360 514 media_image2.png Greyscale Fig. 8D Regarding claims 2, 5, and 8 and noting for example figures figure 8D-9E, Fish et al. discloses a tri-tube valve (730 a-c), comprising: a body comprising a first end (as shown in Fig. 8D, derived from fig. 8d), a second end (as shown in fig. 8D as marked-up), an outer surface (761 and 771, fig. 7i), and an annular region, and defining a longitudinal axis (730), the body comprising three tubular members aligned with the longitudinal axis (730 a-c); wherein each tubular member is fixedly attached to an adjacent tubular member along an adjoining exterior surface in a direction along the longitudinal axis (See mark-up Fig. 8D) such that portions of the exterior surface of the adjoined tubular members circumferentially form a wall of the body (see col 21:36-41; fig. 7); wherein each tubular member is fixedly closed at the second end (col. 26:36-41); fig. 7i), a luminal surface of each tubular member defining a top surface of a leaflet (720, fig.7f), wherein the portions (711; 721) of the exterior surface at the first end of the adjoined tubular members that do not form the wall of the body define commissures (716; 726), wherein each leaflet comprising a commissure region (716; 726; fig. 7h) and a contiguous annulus region are formed by each tubular member (fig. 8D). However, Fish does not disclose that the prosthesis is decellularized. Blum et al. teaches the prosthetic tubular implants may be made of decellularized tissue (see [0028]). It would have been obvious to one having ordinary skill in the art to modify the invention of Fish et al. and utilize decellularized tissue for the tubular implant because Fish envisions the use of biocompatible membrane material (see 4:49-50 and 11:41-48) and decellularized extracellular matrix constructs are designed to allow host cells to infiltrate, permeate or otherwise associate with the scaffold. Regarding claims 3, 6, and 9 see Fig. 1E and 15:22-36 for forming the commissures and see regions (716 and 726). Regarding claims 4, 7 and 10, Fish disclose that the device is useful for aortic valves however does not limit the type of valve that may be addressed (see for example 2:21-29). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to Suzette Gherbi whose telephone number is (571)272- 4751. The examiner can normally be reached on Monday-Friday 7:00am-3:00pm. 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:/Avww.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner's supervisor, Melanie Tyson can be reached on 571-272-9062. 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:/Awww.uspto.gov/patents/apply/patent- center for more information about Patent Center and https:/Awww.uspto.gov/patents/docx for information about filing in DOCX format. For additional questions, contact the Electronic Business Center (EBC) at 866-217-9197. /SUZETTE J GHERBI/Primary Examiner, Art Unit 3774 January 8, 2026
Read full office action

Prosecution Timeline

Feb 27, 2023
Application Filed
Jan 29, 2026
Non-Final Rejection mailed — §103
Apr 13, 2026
Response Filed

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

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Prosecution Projections

1-2
Expected OA Rounds
85%
Grant Probability
94%
With Interview (+8.8%)
2y 5m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1373 resolved cases by this examiner. Grant probability derived from career allowance rate.

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