Prosecution Insights
Last updated: July 17, 2026
Application No. 18/335,600

HEART VALVE SUPPORT DEVICE

Final Rejection §DP
Filed
Jun 15, 2023
Priority
May 22, 2019 — provisional 62/851,503 +3 more
Examiner
GANESAN, SUBA
Art Unit
3774
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
TriFlo Cardiovascular Inc.
OA Round
2 (Final)
74%
Grant Probability
Favorable
3-4
OA Rounds
3m
Est. Remaining
88%
With Interview

Examiner Intelligence

Grants 74% — above average
74%
Career Allowance Rate
495 granted / 671 resolved
+3.8% vs TC avg
Moderate +14% lift
Without
With
+13.7%
Interview Lift
resolved cases with interview
Typical timeline
3y 4m
Avg Prosecution
23 currently pending
Career history
703
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
84.9%
+44.9% vs TC avg
§102
10.7%
-29.3% vs TC avg
§112
2.1%
-37.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 671 resolved cases

Office Action

§DP
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 . Response to Arguments Applicant's arguments filed 3/9/2026 have been fully considered but they are not persuasive. Applicant argues that the amendment to claim 19 overcomes the double patenting rejection. This is not persuasive as all of the elements of claim 19 are found in the claims of patent 10,842,628 and patent 11,717,406. Allowable Subject Matter Claims 19, 21-31 are allowed. Double Patenting The nonstatutory double patenting rejection is based on a judicially created doctrine grounded in public policy (a policy reflected in the statute) so as to prevent the unjustified or improper timewise extension of the “right to exclude” granted by a patent and to prevent possible harassment by multiple assignees. A nonstatutory double patenting rejection is appropriate where the conflicting claims are not identical, but at least one examined application claim is not patentably distinct from the reference claim(s) because the examined application claim is either anticipated by, or would have been obvious over, the reference claim(s). See, e.g., In re Berg, 140 F.3d 1428, 46 USPQ2d 1226 (Fed. Cir. 1998); In re Goodman, 11 F.3d 1046, 29 USPQ2d 2010 (Fed. Cir. 1993); In re Longi, 759 F.2d 887, 225 USPQ 645 (Fed. Cir. 1985); In re Van Ornum, 686 F.2d 937, 214 USPQ 761 (CCPA 1982); In re Vogel, 422 F.2d 438, 164 USPQ 619 (CCPA 1970); In re Thorington, 418 F.2d 528, 163 USPQ 644 (CCPA 1969). A timely filed terminal disclaimer in compliance with 37 CFR 1.321(c) or 1.321(d) may be used to overcome an actual or provisional rejection based on nonstatutory double patenting provided the reference application or patent either is shown to be commonly owned with the examined application, or claims an invention made as a result of activities undertaken within the scope of a joint research agreement. See MPEP § 717.02 for applications subject to examination under the first inventor to file provisions of the AIA as explained in MPEP § 2159. See MPEP § 2146 et seq. for applications not subject to examination under the first inventor to file provisions of the AIA . A terminal disclaimer must be signed in compliance with 37 CFR 1.321(b). The filing of a terminal disclaimer by itself is not a complete reply to a nonstatutory double patenting (NSDP) rejection. A complete reply requires that the terminal disclaimer be accompanied by a reply requesting reconsideration of the prior Office action. Even where the NSDP rejection is provisional the reply must be complete. See MPEP § 804, subsection I.B.1. For a reply to a non-final Office action, see 37 CFR 1.111(a). For a reply to final Office action, see 37 CFR 1.113(c). A request for reconsideration while not provided for in 37 CFR 1.113(c) may be filed after final for consideration. See MPEP §§ 706.07(e) and 714.13. The USPTO Internet website contains terminal disclaimer forms which may be used. Please visit www.uspto.gov/patent/patents-forms. The actual filing date of the application in which the form is filed determines what form (e.g., PTO/SB/25, PTO/SB/26, PTO/AIA /25, or PTO/AIA /26) should be used. A web-based eTerminal Disclaimer may be filled out completely online using web-screens. An eTerminal Disclaimer that meets all requirements is auto-processed and approved immediately upon submission. For more information about eTerminal Disclaimers, refer to www.uspto.gov/patents/apply/applying-online/eterminal-disclaimer. Claims 19, 21-31 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 15-25 of U.S. Patent No. 10,842,628. Although the claims at issue are not identical, they are not patentably distinct from each other because the application claim is merely broader than the patent claim. For double patenting to exist between application claims and patent claims, it must be determined that the application claims are not patentably distinct from the patent claims. Any differences between the application claims and the patent claims must be identified, and the question of whether those differences render the claims patentably distinct must be resolved. Here, all of the elements of application claims 19-, 21-31 are found in patent claims 15-25. The differences between the claims is that the patent claims contain more specific elements. Thus the invention of claims 19, 21-31 of the patent is in effect a “species” of the “generic” invention of application claims 15-25. Claims 19, 21-31 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 15-25 of U.S. Patent No. 11,717,406. Although the claims at issue are not identical, they are not patentably distinct from each other because the application claim is merely broader than the patent claim. For double patenting to exist between application claims and patent claims, it must be determined that the application claims are not patentably distinct from the patent claims. Any differences between the application claims and the patent claims must be identified, and the question of whether those differences render the claims patentably distinct must be resolved. Here, all of the elements of application claims 19, 21-31 are found in patent claims 15-25. The differences between the claims is that the patent claims contain more specific elements. Thus the invention of claims 19, 21-31 of the patent is in effect a “species” of the “generic” invention of application claims 15-25. Conclusion THIS ACTION IS MADE FINAL. Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to SUBA GANESAN whose telephone number is (571)272-3243. The examiner can normally be reached Monday-Friday, 8 AM - 5 PM Mountain Time. 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, Jerrah Edwards can be reached at (408) 918-7557. 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. /SUBA GANESAN/Primary Examiner, Art Unit 3774
Read full office action

Prosecution Timeline

Jun 15, 2023
Application Filed
Sep 10, 2025
Non-Final Rejection mailed — §DP
Mar 09, 2026
Response Filed
Jun 03, 2026
Final Rejection mailed — §DP (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12672959
NATURALLY DESIGNED MITRAL PROSTHESIS
4y 8m to grant Granted Jul 07, 2026
Patent 12653704
MEDICAL DEVICE, IN PARTICULAR A STENT
4y 12m to grant Granted Jun 16, 2026
Patent 12629255
HYDROGEL IMPLANTS WITH POROUS MATERIALS AND METHODS
2y 11m to grant Granted May 19, 2026
Patent 12594160
PROSTHETIC HEART VALVE
4y 7m to grant Granted Apr 07, 2026
Patent 12588988
IMPLANT DELIVERY
11m to grant Granted Mar 31, 2026
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
74%
Grant Probability
88%
With Interview (+13.7%)
3y 4m (~3m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 671 resolved cases by this examiner. Grant probability derived from career allowance rate.

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