Prosecution Insights
Last updated: October 27, 2026
Application No. 18/287,151

AN IMPLANTABLE DEVICE FOR BRANCHED LUMENS WITH ASSOCIATED SYSTEMS AND METHODS

Non-Final OA §102§103
Filed
Oct 16, 2023
Priority
Apr 16, 2021 — provisional 63/176,031 +1 more
Examiner
LABRANCHE, BROOKE N
Art Unit
3771
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
W. L. Gore & Associates Inc.
OA Round
3 (Non-Final)
72%
Grant Probability
Favorable
3-4
OA Rounds
0m
Est. Remaining
89%
With Interview

Examiner Intelligence

Grants 72% — above average
72%
Career Allowance Rate
343 granted / 476 resolved
+2.1% vs TC avg
Strong +17% interview lift
Without
With
+17.0%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
87 currently pending
Career history
563
Total Applications
across all art units

Statute-Specific Performance

§101
0.6%
-39.4% vs TC avg
§103
44.4%
+4.4% vs TC avg
§102
31.3%
-8.7% vs TC avg
§112
20.7%
-19.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 476 resolved cases

Office Action

§102 §103
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 final rejection. 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and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on 09/23/2026 has been entered. Response to Arguments Applicant's arguments filed 09/17/2026 have been fully considered but they are not persuasive. Applicant argues on page 7-8 that Ehnes fails to teach “a plurality of apertures defined through the side wall and opening into the secondary lumen”. Applicant argues that 1414 and 1416 form “exit locations” which do not constitute apertures formed in the sidewall of the tubular member. It is the applicants position that terminal ends of a channel cannot be interpreted as apertures defined through the sidewall. Examiner disagrees because under broadest reasonable interpretation of an aperture, 1414/1416 each form an opening or gap in the sidewall of the tubular member. Further, each of these apertures open into secondary lumen 1402 as claimed. It is the examiners position that Applicants interpretation of an aperture is overly narrow and that 1414 and 1416 can reasonably be interpreted as apertures formed in the sidewall of the tubular member as described in [0073] and shown as forming a pathway between an external location of the tubular member and opening into the secondary lumen, as shown in FIG 14B. Therefore, applicants’ argument is not persuasive and the newly recited limitations of claim 1 are addressed below. Claim Objections Claim 1 is objected to because of the following informalities: Claim 1 recites in line 6 “the side wall”. There is insufficient antecedent basis for this limitations in the claim. Examiner suggests amending the limitations to recite “a side wall of the tubular member”. 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) 1-9 and 12 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Ehnes (US 2020/0375722). Regarding claim 1, Ehnes discloses an implantable device (FIGs 14A-14B, [0073-0074]) comprising: a tubular member (Main stent graft body of 1400) having a first end (Top end as viewed in FIG 14A) and a second end (Bottom end as viewed in FIG 14A), the tubular member forming a primary lumen having a first opening at the first end of the tubular member and a second opening at the second end of the tubular member (Although not shown in the embodiment of FIG 14, main body stent graft is understood to have a primary lumen with first and second openings as illustrated with respect to FIGs 5A-5E, which describes the formation of the implantable device, [0056-0058]), the tubular member including a column positioned within the primary lumen and forming a secondary lumen (Channel 1402 is the secondary lumen positioned within the primary lumen, [0073] discloses channel 1402 can be formed adluminal with respect to the stent structure 1404 and that the channel can be formed using an insulator sheet. [0056-0058] disclose the process of using an insulator sheet to form an adluminal channel. The material of the PTFE layers which surround the channel once the insulator sheet is removed are interpreted as the material structure which forms the column), the tubular member defining a plurality of apertures (1414, 1416, FIG 14A) defined through the side wall (FIGs 14A-B show 1414 and 1416 are openings formed in the sidewall of the graft body, [0073]) and opening into the secondary lumen ([0073]; 1414 and 1416 serve as apertures through which branch portions 1406/1408 can pass from outside of the tubular member, through the aperture, and into the secondary lumen 1402) at positions longitudinally between the first end and the second end of the tubular member (FIG 14A shows the different longitudinal positions of 1414 and 1416), the column having a column opening (Opening of channel 1402 at the opposite end to 1414, 1416, through which guidewires 1410, 1412 are shown to exit in FIG 14A); wherein the column is configured to receive a bridging stent graft (such as 1408, FIG 14B, [0073]) extending through a selected aperture of the plurality of apertures (As shown in FIG 14B, 1408 can be selected to be received within aperture 1414), wherein the column is configured to collapse and seal a remainder of the plurality of apertures positioned beyond the selected aperture relative to the column opening (Column 1402 is at least configured to be used in such a manner of receiving only one bridging stent 1408. If bridging stent 1406 were not inserted therein, the column is at least configured such that aperture 1416 would remain closed, due to the column wall being a flexible sheet of material which lies flat, FIG 13C, unless otherwise expanded. Therefore, the column is at least configured to collapse and seal the unused aperture); and a stent member (1404) supporting the tubular member ([0073]). Regarding claim 2, Ehnes discloses the tubular member includes a first graft member defining the primary lumen and a second graft member coupled to the first graft member forming the column (As best described in [0057], the tubular member comprises main body graft 506 and the column is formed by second graft member 508) and defining the secondary lumen between the first and second graft members (The channel/secondary lumen is formed when insulator sheet 502, which is sandwiched between 506 and 508, is removed). Regarding claim 3, Ehnes discloses the secondary lumen opens into the primary lumen at the proximal opening of the secondary lumen (The opening of the secondary lumen opposite the end of 1414, 1416 opens into the primary lumen. FIG 14B shows that this end is situated at the proximal end of the device). Regarding claims 4-5, Ehnes discloses the secondary lumen is collapsible and the secondary lumen is unsupported by a stent (Because the secondary lumen in formed adluminally to the stent 1404, there is no stent directly contacting or supporting the lumen and the lumen is free to collapse if a particular pressure were applied to the column wall). Regarding claim 6-7, Ehnes discloses the stent member includes a plurality of stent rings spaced longitudinally along the tubular member (FIG 14A shows the spacing of stent rings forming stent structure 1404), wherein each of the plurality of apertures is separated from each other by at least one of the plurality of stent rings (See spacing in FIG 14A where 1414 is separated from 1416 by at least one stent ring). Regarding claim 8, Ehnes discloses each aperture of the plurality of apertures includes a circular shape (Although shown as a slit when closed in FIG 14A, it is understood that apertures 1414, 1416 form a circular shape when opened to receive the tubular shaped branch portions 1406, 1408 as shown in FIG 14B) or a shape defining a rounded portion and a substantially flat portion. Regarding claim 9, Ehnes discloses the tubular member includes a plurality of secondary lumens including the secondar lumen, the plurality of secondary lumens extending longitudinally along at least a portion of the tubular member and circumferentially spaced from each other (The embodiment of FIG 16C, which [0078] discloses can employ the channel/column arrangement of FIGs 14A-14B, shows an additional secondary lumen formed by 1618. The additional secondary lumen is circumferentially spaced apart from the secondary lumen of 1402). Regarding claim 12, Ehnes discloses the secondary lumen extends along a secondary lumen axis that extends longitudinally at an angle greater than zero relative to an axis of the primary lumen (FIG 14B shows at least a portion of the column forming 1416 is angled relative to an axis of the primary lumen by an angle greater than zero). 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) 10 is rejected under 35 U.S.C. 103 as being unpatentable over Ehnes (US 2020/0375722) in view of Lehnhardt et al. (US 2018/0036011). Regarding claim 10, Ehnes discloses the invention substantially as claimed, as set forth above for claim 1. Ehnes is silent regarding a constraining member receiver positioned surrounding at least a portion of the stent member. However, Lehnhardt et al. teaches an implantable device (100, FIG 1) having a stent member (106) supporting a tubular graft member (104, [0019]) and further comprising a constraining member receiver (118, FIG 1, [0019]) positioned surrounding at least a portion of the stent member (See FIG 1), which receives a constraining member (102). Therefore, it would have been obvious to one of ordinary skill in the art at the time of filing to modify the device of Ehnes to comprise a constraining member receiver positioned surrounding at least a portion of the stent member, as taught by Lehnhardt et al., for the purpose of configuring the device to be deployed using constraining members which aid in collapsing and releasing device at the desired position during delivery (0020-0022]). Claim(s) 11 is rejected under 35 U.S.C. 103 as being unpatentable over Ehnes (US 2020/0375722) in view of Hartley et al. (US 2012/0191180). Regarding claim 11, Ehnes discloses the invention substantially as claimed, as set forth above for claim 1. Ehnes is silent regarding the tubular member includes a scallop at the first end. However, Hartley et al. teaches an implantable device (20, FIG 3) having a stent member (4) supporting a tubular graft member (24, [0051]) wherein the tubular member includes a scallop (25) at the first end (26). Therefore, it would have been obvious to one of ordinary skill in the art at the time of filing to modify the device of Ehnes such that the tubular member comprises a scallop at the first end, as taught by Hartley et al., for the purpose of configuring the device for use in a particular application such as placement at the thoracic arch of the patient, wherein the scallop prevents occlusion of the left carotid artery ([0051]). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to BROOKE N LABRANCHE whose telephone number is (571)272-9775. The examiner can normally be reached M-F 8-5. 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 5712727134. 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. /BROOKE LABRANCHE/ Primary Examiner, Art Unit 3771
Read full office action

Prosecution Timeline

Oct 16, 2023
Application Filed
Mar 27, 2026
Non-Final Rejection mailed — §102, §103
Jun 29, 2026
Response Filed
Jul 29, 2026
Final Rejection mailed — §102, §103
Sep 17, 2026
Response after Non-Final Action
Sep 23, 2026
Request for Continued Examination
Sep 25, 2026
Response after Non-Final Action
Oct 08, 2026
Non-Final Rejection mailed — §102, §103 (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

3-4
Expected OA Rounds
72%
Grant Probability
89%
With Interview (+17.0%)
3y 0m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 476 resolved cases by this examiner. Grant probability derived from career allowance rate.

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