Prosecution Insights
Last updated: May 29, 2026
Application No. 18/497,510

LOW PROFILE EMBOLIC PROTECTION DEVICE AND SYSTEM

Final Rejection §102§OTHER
Filed
Oct 30, 2023
Priority
Dec 13, 2022 — provisional 63/432,250
Examiner
HOLWERDA, KATHLEEN SONNETT
Art Unit
3771
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Medtronic, Inc.
OA Round
2 (Final)
69%
Grant Probability
Favorable
3-4
OA Rounds
1y 2m
Est. Remaining
86%
With Interview

Examiner Intelligence

Grants 69% — above average
69%
Career Allowance Rate
654 granted / 953 resolved
-1.4% vs TC avg
Strong +17% interview lift
Without
With
+17.0%
Interview Lift
resolved cases with interview
Typical timeline
3y 9m
Avg Prosecution
34 currently pending
Career history
1009
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
78.4%
+38.4% vs TC avg
§102
6.6%
-33.4% vs TC avg
§112
7.9%
-32.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 953 resolved cases

Office Action

§102 §OTHER
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 1-6, in the reply filed on 11/14/2025 is acknowledged. 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) 1-6 is/are rejected under 35 U.S.C. 102a1 as being anticipated by Sos (US 2016/0367285). Sos discloses an embolic protection system for deploying a device in a diseased vessel of a vasculature, the embolic protection system comprising an embolic protection device including a catheter shaft (e.g., 150; figs. 5A-5D), an expandable filter (110) provided at a distal end of the catheter shaft, the expandable filter having a side port provided in a side wall of the expandable filter (consider opening at 146 in fig. 5d formed in the distal side wall of the filter, or any of the pores within the conically shaped side wall of the mesh material 110 through which fluid flows; [0013]), and a filter actuator (101/101b; see figs. 6A,6B) located at or towards a proximal end of the embolic protection device, the filter actuator operable to open and close a mouth of the expandable filter (by controlling advancement/retraction of filter into/out of the distal end of sheath 140; figs. 5B, 5C; [0022], [0024]). Regarding claim 2, the system further comprises a dilator (120; fig. 5A-D; [0087]). Regarding claim 3, the system further comprises a loading tool (e.g., guidewire channel 150, see figs. 5A-5E, which facilitates loading of the device over a guidewire). Regarding claim 4, the system further comprises an introducer (140, noting filter is introduced through clot while housed within 140; see esp. figs. 2A-2C; see also figs. 5A-5D, 6A and 6B). Regarding claim 5, the system further comprises an introducer hub adapter (fig. 6B: 172/174; which adapts the introducer 140 for receiving suction ([0108]). Regarding claim 6, the introducer is an expandable introducer, noting that Sos discloses that the distal end of introducer “may become flared” as the mesh and a captured clot are retracted, and thus expands ([0099]). Alternatively, the introducer of Sos may include an expandable element (191; figs. 8A, 8b; [0111]) such that it is considered an expandable introducer. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. US 2016/0058540 to Don Michael discloses an embolic protection system (fig. 1) including a filter (34) carried at the end of a catheter shaft (42), the filter having a conical side wall with a side port (68; fig. 2 and [0024]) in the conical side wall, in addition to the pores of the mesh material (64) of the side wall ([0020]). Any inquiry concerning this communication or earlier communications from the examiner should be directed to KATHLEEN SONNETT HOLWERDA whose telephone number is (571)272-5576. The examiner can normally be reached M-F, 8-5, with alternate Fridays off. 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, Elizabeth Houston can be reached at 571-272-7134. 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. KSH 12/4/2025 /KATHLEEN S HOLWERDA/Primary Examiner, Art Unit 3771
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Prosecution Timeline

Oct 30, 2023
Application Filed
Dec 04, 2025
Non-Final Rejection (signed) — §102, §OTHER
Jan 05, 2026
Non-Final Rejection mailed — §102, §OTHER
Mar 30, 2026
Response Filed
May 27, 2026
Final Rejection mailed — §102, §OTHER (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

3-4
Expected OA Rounds
69%
Grant Probability
86%
With Interview (+17.0%)
3y 9m (~1y 2m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 953 resolved cases by this examiner. Grant probability derived from career allowance rate.

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