Prosecution Insights
Last updated: July 17, 2026
Application No. 19/127,800

DEVICES FOR TREATMENT OF VASCULAR DEFECTS

Non-Final OA §102§112
Filed
May 07, 2025
Priority
Nov 09, 2022 — provisional 63/423,941 +1 more
Examiner
LYNCH, ROBERT A
Art Unit
3771
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Microvention Inc.
OA Round
1 (Non-Final)
80%
Grant Probability
Favorable
1-2
OA Rounds
1y 9m
Est. Remaining
94%
With Interview

Examiner Intelligence

Grants 80% — above average
80%
Career Allowance Rate
693 granted / 864 resolved
+10.2% vs TC avg
Moderate +13% lift
Without
With
+13.3%
Interview Lift
resolved cases with interview
Typical timeline
2y 11m
Avg Prosecution
41 currently pending
Career history
899
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
70.1%
+30.1% vs TC avg
§102
9.7%
-30.3% vs TC avg
§112
3.7%
-36.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 864 resolved cases

Office Action

§102 §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 . Information Disclosure Statement The information disclosure statement(s) (IDS) submitted on 5/7/2025 has been received and made of record. Note the acknowledged form PTO-1449 enclosed herewith. Claim Interpretation The following is a quotation of 35 U.S.C. 112(f): (f) Element in Claim for a Combination. – An element in a claim for a combination may be expressed as a means or step for performing a specified function without the recital of structure, material, or acts in support thereof, and such claim shall be construed to cover the corresponding structure, material, or acts described in the specification and equivalents thereof. The following is a quotation of pre-AIA 35 U.S.C. 112, sixth paragraph: An element in a claim for a combination may be expressed as a means or step for performing a specified function without the recital of structure, material, or acts in support thereof, and such claim shall be construed to cover the corresponding structure, material, or acts described in the specification and equivalents thereof. The claims in this application are given their broadest reasonable interpretation using the plain meaning of the claim language in light of the specification as it would be understood by one of ordinary skill in the art. The broadest reasonable interpretation of a claim element (also commonly referred to as a claim limitation) is limited by the description in the specification when 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, is invoked. As explained in MPEP § 2181, subsection I, claim limitations that meet the following three-prong test will be interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph: (A) the claim limitation uses the term “means” or “step” or a term used as a substitute for “means” that is a generic placeholder (also called a nonce term or a non-structural term having no specific structural meaning) for performing the claimed function; (B) the term “means” or “step” or the generic placeholder is modified by functional language, typically, but not always linked by the transition word “for” (e.g., “means for”) or another linking word or phrase, such as "configured to" or "so that"; and (C) the term “means” or “step” or the generic placeholder is not modified by sufficient structure, material, or acts for performing the claimed function. Use of the word “means” (or “step”) in a claim with functional language creates a rebuttable presumption that the claim limitation is to be treated in accordance with 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph. The presumption that the claim limitation is interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, is rebutted when the claim limitation recites sufficient structure, material, or acts to entirely perform the recited function. Absence of the word “means” (or “step”) in a claim creates a rebuttable presumption that the claim limitation is not to be treated in accordance with 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph. The presumption that the claim limitation is not interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, is rebutted when the claim limitation recites function without reciting sufficient structure, material or acts to entirely perform the recited function. Claim limitations in this application that use the word “means” (or “step”) are being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, except as otherwise indicated in an Office action. Conversely, claim limitations in this application that do not use the word “means” (or “step”) are not being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, except as otherwise indicated in an Office action. This application includes one or more claim limitations that use the word “means” and are being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, because the claim limitation(s) uses a generic placeholder that is coupled with functional language without reciting sufficient structure to perform the recited function and the generic placeholder is not preceded by a structural modifier. Such claim limitation(s) is/are: “a constraining means” in claim 55. Because this/these claim limitation(s) is/are being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, it/they is/are being interpreted to cover the corresponding structure described in the specification as performing the claimed function, and equivalents thereof. If applicant does not intend to have this/these limitation(s) interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, applicant may: (1) amend the claim limitation(s) to avoid it/them being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph (e.g., by reciting sufficient structure to perform the claimed function); or (2) present a sufficient showing that the claim limitation(s) recite(s) sufficient structure to perform the claimed function so as to avoid it/them being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph. Claim Objections Claim 55 is objected to because of the following informalities: In claim 55, there is an apparent instance of rough grammar in line 10 at “a constraining means for located at” wherein an amendment such as “a constraining means . Appropriate correction is required. 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 28 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 28 recites the limitation "the marker band" in line 15. There is insufficient antecedent basis for this limitation in the claim. Appropriate correction is required. 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)(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) 55 is rejected under 35 U.S.C. 102(a)(1) as being anticipated by Marchand et al. (US 2011/0152993). Marchand discloses (see Figs. 53-53B) a multilayer device for treatment of vascular defects comprising the following claim limitations: (claim 55) A device for treatment of a patient's aneurysm ([0002]; [0016]), comprising: a permeable shell (292) including a proximal end (294), a distal end (“upper” end opposite to proximal end 294), a radially constrained elongated state configured for delivery within a catheter lumen (see Abstract; [0006]; [0010]), an expanded state (as shown in Figs. 53-53B), and a plurality of filaments (14, see exemplary Fig. 50) that are woven together to form a mesh (292) (shell 292 expressly depicted as a mesh; [0017]; [0024]), wherein each of the plurality of filaments (14) has a first end and a second end (as shown in Figs. 53-53A; [0235]), wherein each of the plurality of filaments (14) starts at the proximal end (294) of the permeable shell (292), extends to the distal end (296) of the permeable shell (292), and extends back to the proximal end (294) of the permeable shell (292) forming an inner compressible mesh structure (302) ([0236]), and wherein the first and second ends of each of the plurality of filaments (14) are gathered in a hub (304) at the first end (i.e., proximal end 294) of the first permeable shell (292); and a constraining means (306) for located around at least a portion of the inner compressible mesh structure (302) for dampening hemodynamic forces at the proximal end (294) of the permeable shell (292) (as expressly shown in Figs. 53-53B; [0116]; [0018]; [0237]). Allowable Subject Matter Claims 1-2, 5-7, 9-10, 12, 14, 16-23 and 27 are allowed. Claim 27 also contains allowable subject matter but remains subject to a 112 rejection which must be resolved before the claim can be in proper condition for allowance. The following is an examiner’s statement of reasons for allowance: the art of record does not teach or render obvious a device for treatment of a patient’s aneurysm and/or a method for treating a cerebral aneurysm having an interior cavity and a neck as claimed that includes, in combination with the claim(s) as a whole, an outer constraint surrounding at least a portion of the inner compressible mesh structure wherein the outer constraint comprises a variable stiffness along a length of the outer constraint. The closest prior art appears to be Marchand et al. (US 2011/0152993) disclosing a similar occlusion device and method, but failing to disclose or teach its outer constraint (see 306 in Figs. 53-53B) having a variable stiffness along a length of the outer constraint. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to Robert Lynch whose telephone number is (571)270-3952. The examiner can normally be reached on Monday-Friday (9:00AM-6:00PM, with alternate Fridays off). If attempts to reach the examiner by telephone are unsuccessful, please contact the examiner’s supervisor, Elizabeth Houston, 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 an application may be obtained from the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see http://pair-direct.uspto.gov. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative or access to the automated information system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /ROBERT A LYNCH/Primary Examiner, Art Unit 3771
Read full office action

Prosecution Timeline

May 07, 2025
Application Filed
Jul 02, 2026
Non-Final Rejection mailed — §102, §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

1-2
Expected OA Rounds
80%
Grant Probability
94%
With Interview (+13.3%)
2y 11m (~1y 9m remaining)
Median Time to Grant
Low
PTA Risk
Based on 864 resolved cases by this examiner. Grant probability derived from career allowance rate.

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