Prosecution Insights
Last updated: October 04, 2026
Application No. 18/900,183

Anchored Leaflet Device And Methods For Transcatheter Valve Repair

Non-Final OA §102§103§112
Filed
Sep 27, 2024
Priority
Feb 06, 2019 — provisional 62/918,561 +2 more
Examiner
WHITE, KIA XIONG
Art Unit
Tech Center
Assignee
4C Medical Technologies Inc.
OA Round
1 (Non-Final)
66%
Grant Probability
Favorable
1-2
OA Rounds
1y 11m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 66% — above average
66%
Career Allowance Rate
31 granted / 47 resolved
+6.0% vs TC avg
Strong +44% interview lift
Without
With
+44.1%
Interview Lift
resolved cases with interview
Typical timeline
3y 11m
Avg Prosecution
31 currently pending
Career history
76
Total Applications
across all art units

Statute-Specific Performance

§101
0.8%
-39.2% vs TC avg
§103
55.1%
+15.1% vs TC avg
§102
23.6%
-16.4% vs TC avg
§112
17.9%
-22.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 47 resolved cases

Office Action

§102 §103 §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 . Claims 1, 3-7, and 21-22 are pending and examined below. Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claims 1, 3-7, 21, and 22 rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. Claim 1, 21, and 22 recites the limitation "the heart" in lines 3-4. There is insufficient antecedent basis for this limitation in the claim. All dependent claims are likewise rejected. Claim Rejections - 35 USC § 102 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 (i.e., changing from AIA to pre-AIA ) 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. 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)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claim(s) 1, 3, 5-7, and 21-22 is/are rejected under 35 U.S.C. 102(a)(2) as being anticipated by Kofidis (US 20220047387 A1). Regarding claim 1, Kofidis teaches a heart valve repair system (100, Fig. 1B, ¶0008) comprising: an implantable leaflet (2, Fig. 1B) having a coaptation edge (edge of 2, Fig. 2) and an annulus edge (edge of 1, Fig. 2); multiple chords (3, Fig. 1B) for connecting said coaptation edge to a native structure (4, Fig. 2) of the heart (Fig. 2, ¶0074), each said chord (3, Fig. 2) having a proximal end and a distal end (ends of 3, Figs. 1A & 2); a fixation mechanism (8, Fig. 1B) associated with each said chord (3, Fig. 1B) for attaching said distal end of each said chord to said native structure (4, Fig. 2) of said heart (Fig. 2, ¶0074); and at least one annulus attachment device for securing said annulus edge (edge of 1, Fig. 2) of said implantable leaflet to an annulus of said heart valve (sutures used to attach ring portion 601A to the patient's annulus, ¶0093); wherein: the coaptation edge is rolled up (601A, Fig. 6A ¶0089); the annulus edge is rolled up (605A, Fig. 6A ¶0089; and the native structure is a papillary muscle (4, Fig. 2). Regarding claim 3, Kofidis teaches wherein the implantable leaflet comprises a tissue material (human, bovine or porcine pericardium, ¶0077). Regarding claim 5, Kofidis teaches wherein said tissue material comprises mammal tissue (human, bovine or porcine pericardium, ¶0077). Regarding claim 6, Kofidis teaches wherein the tissue material comprises a synthetic material (biodegradable polymers, ¶0077). Regarding claim 7, Kofidis teaches further comprising a fixation mechanism (9, Fig. 1A) for attaching a proximal end of each said chord (3, Fig. 1A) to said implantable leaflet (2, Fig. 1A). Regarding claim 21, Kofidis teaches a heart valve repair system (100, Fig. 1B, ¶0008) comprising: an implantable leaflet (2, Fig. 1B) having a coaptation edge (edge of 2, Fig. 2) and an annulus edge (edge of 1, Fig. 2); multiple chords (3, Fig. 1B) for connecting said coaptation edge to a papillary muscle (4, Fig. 2) of the heart (Fig. 2, ¶0074), each said chord (3, Fig. 2) having a proximal end and a distal end (ends of 3, Fig. 2); a fixation mechanism (8, Fig. 1B) associated with each said chord (3, Fig. 1B) for attaching said distal end of each said chord to said papillary muscle (4, Fig. 2) of said heart (Fig. 2, ¶0074); and at least one annulus attachment device for securing said annulus edge (edge of 1, Fig. 2) of said implantable leaflet to an annulus of said heart valve (sutures used to attach ring portion 601A to the patient's annulus, ¶0093). Regarding claim 22, Kofidis teaches a heart valve repair system (100, Fig. 1B, ¶0008) comprising: an implantable leaflet (2, Fig. 1B) having a coaptation edge (edge of 2, Fig. 2) and an annulus edge (edge of 1, Fig. 2); a chord (3, Fig. 1B) for connecting said coaptation edge to a papillary muscle (4, Fig. 2) of the heart (Fig. 2, ¶0074), said chord (3, Fig. 2) having a proximal end and a distal end (ends of 3, Fig. 2); a fixation mechanism (8, Fig. 1B) associated with said chord (3, Fig. 1B) for attaching said distal end of said chord to said papillary muscle (4, Fig. 2) of said heart (Fig. 2, ¶0074); and at least one annulus attachment device for securing said annulus edge (edge of 1, Fig. 2) of said implantable leaflet to an annulus of said heart valve (sutures used to attach ring portion 601A to the patient's annulus, ¶0093); wherein: the coaptation edge is rolled up (601A, Fig. 6A ¶0089); and the annulus edge is rolled up (605A, Fig. 6A ¶0089). Claim Rejections - 35 USC § 103 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 (i.e., changing from AIA to pre-AIA ) 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. 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) 4 is/are rejected under 35 U.S.C. 103 as being unpatentable over Kofidis in view of Neethling et al. (US 20060193885 A1) hereinafter, Neethling. Regarding claim 4, Kofidis does not teach wherein said tissue material comprises a calcification-resistant implantable biomaterial. However, Neethling teaches an implantable biomaterial (abstract, Neethling) wherein said tissue material comprises a calcification-resistant implantable biomaterial (calcification resistant biomaterial comprising cross-linked collagen, ¶0058, Neethling). It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the teachings of Kofidis by incorporating the teaching above as taught by Neethling in order to prevent calcification, calcification can result in undesirable stiffening or degradation of the biomaterial (¶0128, Neethling). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to KIA XIONG WHITE whose telephone number is (703)756-4773. The examiner can normally be reached 0830-1630 EST. 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. /K.X.W./Examiner, Art Unit 3774 /YASHITA SHARMA/Primary Patent Examiner, Art Unit 3774
Read full office action

Prosecution Timeline

Sep 27, 2024
Application Filed
Dec 03, 2025
Response after Non-Final Action
Sep 02, 2026
Non-Final Rejection mailed — §102, §103, §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12728010
KNEE PROSTHESIS HAVING NON-UNIFORM STIFFNESS
4y 8m to grant Granted Sep 08, 2026
Patent 12714564
Device for Heart Repair
5y 3m to grant Granted Aug 25, 2026
Patent 12697213
PROSTHESIS CONNECTING DEVICE
5y 1m to grant Granted Aug 04, 2026
Patent 12690963
PROSTHETIC HEART VALVE HAVING COMMISSURE SUPPORT ELEMENT
5y 2m to grant Granted Jul 28, 2026
Patent 12678283
METHODS OF DELIVERING A FLEXIBLE ANNULOPLASTY RING
5y 4m to grant Granted Jul 14, 2026
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
66%
Grant Probability
99%
With Interview (+44.1%)
3y 11m (~1y 11m remaining)
Median Time to Grant
Low
PTA Risk
Based on 47 resolved cases by this examiner. Grant probability derived from career allowance rate.

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