Prosecution Insights
Last updated: October 25, 2026

TriVascular Inc.

Technology area: Medical Devices & Mechanical Engineering

6 pending office actions • 2 art units • 5 examiners • 0 of 6 (0%) have an AI response strategy ready • 2 patents granted in the last 365 days

Analysis

TriVascular Inc. currently manages 6 pending office actions in the Medical Devices & Mechanical Engineering technology area. These actions are distributed among 5 distinct examiners, showing that most matters are handled by unique individuals. However, the portfolio is highly concentrated within only 2 distinct art units, indicating a narrow technical focus for the 6 pending office actions. This concentration suggests that the company's medical device innovations are being evaluated by a small number of specialized examination groups.

HOLWERDA, KATHLEEN SONNETT is the busiest examiner, managing 2 busiest examiner pending actions. The fact that 6 pending office actions are squeezed into 2 distinct art units means the applicant can focus their strategy on the specific requirements of those 2 groups. While there are 5 distinct examiners, their proximity within the same art units may lead to more consistent examination patterns across the portfolio. For the practitioner, this requires balancing the feedback from 5 distinct examiners while navigating the standards of only 2 distinct art units.

Written from this page's own data; every figure is computed from USPTO records and verified before publication.

Portfolio Summary

6
Total Pending OAs
4
Non-Final OAs
2
Final Rejections
0
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 2 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.

0
Overdue
0
Due this week
2
Due this month
0
Due in next 60 days
0
Due later

Case Difficulty Mix

Difficulty is derived from the rejection statutes on the most recent pending office action. §101-driven and multi-statute cases are graded Hard; §112-only and obviousness-type double-patenting cases are graded Easy; everything else is Medium. "Unknown" means we have not yet parsed a statute for that office action.

3
Hard (50%)
3
Medium (50%)
0
Easy (0%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§103 only1 (17%)
Double-patenting + other2 (33%)
Multi-statute (no §101)3 (50%)

Industry Mix

How the docket's pending cases split across USPTO tech-center bands.

0
Life Sciences
0% of docket
0
Information Tech
0% of docket
0
Communications
0% of docket
0
Semiconductors
0% of docket
6
Mechanical / Eng
100% of docket
0
Business / Other
0% of docket

Time-on-OA Estimate

Manual office-action response work runs about 10 hours per case. The time-saved bands below show what IP Author's prosecution pipeline typically delivers — a conservative 20% on the low end, 35% in the middle, 50% on the high end.

60 h
Manual time on pending OAs
12 h
Time saved (low, 20%)
21 h
Time saved (mid, 35%)
0.5 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
HOLWERDA, KATHLEEN SONNETT 2 68.8% +17.6%
DANG, ANH TIEU 1 65.7% +34.8%
DAVID, SHAUN L 1 72.7% +18.5%
ALEMAN, SARAH WEBB 1 62.2% +23.6%
RESTAINO, ANDREW PETER 1 72.4% +39.2%

Hard Cases (3)

Multi-statute / §101-driven matters, or cases in front of an examiner with an allow rate under 30%. The top 3 ordered by deadline are shown.

App #TitleExaminerDue in
17328985 ENDOVASCULAR DELIVERY SYSTEM WITH AN IMPROVED RADIOPAQUE MARKER SCHEME HOLWERDA, KATHLEEN SONNETT 20d
16812017 BALLOON ASSISTED ENDOLUMINAL PROSTHESIS DEPLOYMENT RESTAINO, ANDREW PETER 27d
19025423 DELIVERY CATHETER FOR ENDOVASCULAR DEVICE HOLWERDA, KATHLEEN SONNETT —

Interview Candidates (6)

Cases in front of an examiner whose interview lift is 10 percentage points or more — i.e. interviewed cases historically resolve more favorably than non-interviewed ones. The top 6 ordered by deadline are shown.

App #TitleExaminerDue in
17328985 ENDOVASCULAR DELIVERY SYSTEM WITH AN IMPROVED RADIOPAQUE MARKER SCHEME HOLWERDA, KATHLEEN SONNETT 20d
16812017 BALLOON ASSISTED ENDOLUMINAL PROSTHESIS DEPLOYMENT RESTAINO, ANDREW PETER 27d
19225937 BIFURCATED ENDOVASCULAR PROSTHESIS HAVING TETHERED CONTRALATERAL LEG DANG, ANH TIEU —
19172387 DURABLE STENT GRAFT WITH TAPERED STRUTS AND STABLE DELIVERY METHODS AND DEVICES DAVID, SHAUN L —
19025423 DELIVERY CATHETER FOR ENDOVASCULAR DEVICE HOLWERDA, KATHLEEN SONNETT —
18738971 ADVANCED ENDOVASCULAR GRAFT AND DELIVERY SYSTEM ALEMAN, SARAH WEBB —

Top Art Units

Art UnitApps
3771 5
3774 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
19225937 BIFURCATED ENDOVASCULAR PROSTHESIS HAVING TETHERED CONTRALATERAL LEG DANG, ANH TIEU 3771 §102§103§112DP Non-Final OA — Pending Jun 02, 2025
19172387 DURABLE STENT GRAFT WITH TAPERED STRUTS AND STABLE DELIVERY METHODS AND DEVICES DAVID, SHAUN L 3771 §112DP Non-Final OA — Pending Apr 07, 2025
19025423 DELIVERY CATHETER FOR ENDOVASCULAR DEVICE HOLWERDA, KATHLEEN SONNETT 3771 §103§112 Non-Final OA — Pending Jan 16, 2025
18738971 ADVANCED ENDOVASCULAR GRAFT AND DELIVERY SYSTEM ALEMAN, SARAH WEBB 3774 §103Other Non-Final OA — Pending Jun 10, 2024
17328985 ENDOVASCULAR DELIVERY SYSTEM WITH AN IMPROVED RADIOPAQUE MARKER SCHEME HOLWERDA, KATHLEEN SONNETT 3771 §103§112 Final Rejection 20d Pending May 24, 2021
16812017 BALLOON ASSISTED ENDOLUMINAL PROSTHESIS DEPLOYMENT RESTAINO, ANDREW PETER 3771 §103§112 Final Rejection 27d Pending Mar 06, 2020

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Frequently Asked Questions

How many pending USPTO office actions does TriVascular Inc. have?

TriVascular Inc. has 6 pending office actions as of October 2026, spread across 2 art units and 5 examiners.

Which USPTO examiner handles the most TriVascular Inc. applications?

Kathleen Sonnett Holwerda has the most, with 2 of TriVascular Inc.'s pending office actions.

What technology area are TriVascular Inc.'s patent applications in?

Mostly Medical Devices & Mechanical Engineering (USPTO Tech Center 3700), based on where its pending office actions are examined.

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