Prosecution Insights
Last updated: August 15, 2026
Application No. 18/136,019

STERILE FIELD CLOT CAPTURE MODULE FOR USE IN THROMBECTOMY SYSTEM

Non-Final OA §112
Filed
Apr 18, 2023
Priority
Dec 18, 2019 — provisional 62/950,058 +6 more
Examiner
KALIHER, HANS CHRISTIAN
Art Unit
3781
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Imperative Care Inc.
OA Round
2 (Non-Final)
62%
Grant Probability
Moderate
2-3
OA Rounds
0m
Est. Remaining
91%
With Interview

Examiner Intelligence

Grants 62% of resolved cases
62%
Career Allowance Rate
84 granted / 136 resolved
-8.2% vs TC avg
Strong +30% interview lift
Without
With
+29.6%
Interview Lift
resolved cases with interview
Typical timeline
3y 1m
Avg Prosecution
31 currently pending
Career history
179
Total Applications
across all art units

Statute-Specific Performance

§101
2.0%
-38.0% vs TC avg
§103
51.8%
+11.8% vs TC avg
§102
23.5%
-16.5% vs TC avg
§112
20.3%
-19.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 136 resolved cases

Office Action

§112
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 . 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 allowance or after an Office action under Ex Parte Quayle, 25 USPQ 74, 453 O.G. 213 (Comm'r Pat. 1935). 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, prosecution in this application has been reopened pursuant to 37 CFR 1.114. Applicant's submission filed on 10MAR2026 has been entered. 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. Claim 12 is 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 12 recites the limitation “at least about 30 inches in length” which presents an unclear approximation, and is therefore indefinite. As there is nothing in the specification, prosecution history, or the prior art to provide any indication as to what range of specific activity is covered by the term “about”, the limitation is considered indefinite. Amgen, Inc. v.Chugai Pharmaceutical Co., 927 F.2d 1200, 18 USPQ2d 1016 (Fed. Cir. 1991). Allowable Subject Matter Claims 1, 3, 4, 7-11, and 13-21 are allowed. The closest prior art of record is Deville (US PAT 11406402) and US 20240074771 A1 (Quick et al.). Denville discloses a clot capture module 200 for use in a thrombectomy system (Col. 30, lines 16-55 and Fig. 18), the clot capture module (200) in combination with a vacuum line leading to an aspiration pump and a canister (a vacuum line leading to a vacuum pump 80 and a standard aspiration canister: Col. 41, lines 22-31). Denville further discloses the clot capture module (200) comprising: a housing (a housing of 200: Fig. 18); a clot capture chamber in the housing (a trap chamber 224: Col. 30, lines 27-57 and Fig. 18); a window in the housing to permit visual inspection of the clot capture chamber (200 is see-through: Col. 30, line 65 – Col. 31, line 3); and a filter in the clot capture chamber (a filter 222: Col. 30, lines 27-57 and Fig. 18). Deville does not disclose a filter comprising a blood permeable membrane, the upstream surface being convex and being on a radially outwardly facing surface of the blood permeable membrane. Deville therefore fails to teach the claimed device, alone or in combination. Quick similarly teaches a clot capture module considered generally representative of the art, the device comprising a windowed housing comprising a filter. Quick fails to teach the filter comprising a blood permeable membrane, the upstream surface being convex and being on a radially outwardly facing surface of the blood permeable membrane. Quick therefore fails to teach the claimed device, alone or in combination. While housings with a transparent window are well-known in the art, the instant device claims a filter and membrane structure within said housing that was not found in the prior art. Any inquiry concerning this communication or earlier communications from the examiner should be directed to HANS KALIHER whose telephone number is (303)297-4453. The examiner can normally be reached Monday-Friday 08:00-05:00 MT. 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, Sarah Al-Hashimi can be reached at (571) 272-7159. 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. /HANS KALIHER/Examiner, Art Unit 3781 /JESSICA ARBLE/Primary Examiner, Art Unit 3781
Read full office action

Prosecution Timeline

Apr 18, 2023
Application Filed
Apr 19, 2023
Response after Non-Final Action
Nov 10, 2025
Non-Final Rejection mailed — §112
Mar 10, 2026
Response Filed
Jul 15, 2026
Request for Continued Examination
Jul 21, 2026
Response after Non-Final Action
Aug 05, 2026
Non-Final Rejection mailed — §112 (current)

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

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Prosecution Projections

2-3
Expected OA Rounds
62%
Grant Probability
91%
With Interview (+29.6%)
3y 1m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 136 resolved cases by this examiner. Grant probability derived from career allowance rate.

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