Prosecution Insights
Last updated: October 04, 2026
Application No. 19/203,508

MULTI-STENT AND MULTI-BALLOON APPARATUS FOR TREATING BIFURCATIONS AND METHODS OF USE

Non-Final OA §112
Filed
May 09, 2025
Priority
Feb 08, 2011 — provisional 61/440,742 +6 more
Examiner
MENDEZ, KATHERINE H
Art Unit
Tech Center
Assignee
Advanced Bifurcation Systems Inc.
OA Round
1 (Non-Final)
67%
Grant Probability
Favorable
1-2
OA Rounds
1y 11m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 67% — above average
67%
Career Allowance Rate
288 granted / 431 resolved
+6.8% vs TC avg
Strong +34% interview lift
Without
With
+33.6%
Interview Lift
resolved cases with interview
Typical timeline
3y 4m
Avg Prosecution
38 currently pending
Career history
466
Total Applications
across all art units

Statute-Specific Performance

§101
2.0%
-38.0% vs TC avg
§103
41.3%
+1.3% vs TC avg
§102
14.5%
-25.5% vs TC avg
§112
35.9%
-4.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 431 resolved cases

Office Action

§112
DETAILED ACTION Notice of Pre-AIA or AIA Status The present application is being examined under the pre-AIA first to invent provisions. 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. 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 1-20 are 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 recites “the proximal expandable member comprises a proximal everted end and the distal expandable member comprises a distal everted end, and wherein expansion of the proximal and distal expandable members causes the proximal everted end and the distal everted end to move toward one another”. It is unclear how the proximal end of the proximal member moves towards the distal end of the distal member as these ends are on opposite sides of one another and would move away from one another if everted. Appropriate correction is required. Since the scope of the claim is so unclear, no prior art could be applied. Claim 2 recites “the two expandable members” however there are three expandable members claimed (proximal, distal and second) so it is unclear which 2 are being referred to. Appropriate correction is required. Claim 5 recites the limitation "the proximal everted end of the distal expandable member" in line 3. There is insufficient antecedent basis for this limitation in the claim. Appropriate correction is required. Claim 6 recites the limitation "the distal everted end of the proximal expandable member" in line 4. There is insufficient antecedent basis for this limitation in the claim. Appropriate correction is required. Claim 12 recites the limitation “its proximal and distal ends” which is unclear which structure “its” is referring to. Appropriate correction is required. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Gurm et al. (US 20060025843 A1) teaches of a system for treating a bifurcated vessel with proximal and distal balloons that appear to have an everted shape and a gap therebetween. Gurm however doesn’t teach the balloon ends evert upon expansion to move towards one another. Any inquiry concerning this communication or earlier communications from the examiner should be directed to KATHERINE H MENDEZ whose telephone number is (571)272-9503. The examiner can normally be reached Monday - Friday 8 am-4:00 pm. 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, Darwin Erezo can be reached at (571) 272-4695. 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. /KATHERINE H MENDEZ/Primary Examiner, Art Unit 3771
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Prosecution Timeline

May 09, 2025
Application Filed
Aug 26, 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

1-2
Expected OA Rounds
67%
Grant Probability
99%
With Interview (+33.6%)
3y 4m (~1y 11m remaining)
Median Time to Grant
Low
PTA Risk
Based on 431 resolved cases by this examiner. Grant probability derived from career allowance rate.

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