Prosecution Insights
Last updated: October 04, 2026

Clearstream Technologies Limited

Technology area: Medical Devices & Mechanical Engineering

6 pending office actions • 1 art units • 6 examiners • 0 of 6 (0%) have an AI response strategy ready • 3 patents granted in the last 365 days

Analysis

Clearstream Technologies Limited is managing 6 pending office actions in the Medical Devices & Mechanical Engineering technology area. While these actions are distributed among 6 distinct examiners, they are all contained within 1 distinct art unit. This represents a high level of examiner diversity within a single technical department. The concentration in 1 art unit suggests that the underlying technical standards and prior art references used by the examiners may be closely related.

Davina En-Yin Lee is the busiest examiner for the company, currently responsible for 1 pending office action. Because each of the 6 examiners handles exactly 1 pending action, the company must navigate 6 different personal examination styles. This requires a strategy that balances individual examiner preferences with the unified policies of the single art unit involved. Practitioners should focus on maintaining consistent technical arguments across all 6 actions, as they are all subject to the same departmental oversight. Davina En-Yin Lee is one of the 6 individuals contributing to this diverse prosecution landscape.

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
1
Final Rejections
1
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 3 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.

0
Overdue
0
Due this week
3
Due this month
0
Due in next 60 days
0
Due later

Deadline Fire Line

Every pending office action with a known statutory deadline, placed on a days-until-due axis. Dots left of Today are overdue; the further right, the more runway. Cases that share a deadline window stack vertically. 3 of the docket's apps have a known mailing date.

-30dToday30d60d90d120d
Due ≤ 30 days (3)

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.

4
Hard (67%)
2
Medium (33%)
0
Easy (0%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§103 only2 (33%)
Multi-statute (no §101)4 (67%)

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
4
Mechanical / Eng
67% of docket
2
Business / Other
33% 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
LEE, DAVINA EN-YIN 1 38.6% +14.3%
MENDEZ, KATHERINE H 1 66.8% +33.6%
JAFFRI, ZEHRA 1 58.8% +51.8%
LABRANCHE, BROOKE N 1 72.7% +15.7%
MCGINNITY, JAMES RYAN 1 60.3% +49.8%
DUBOSE, LAUREN 1 60.1% +43.3%

Hard Cases (4)

Multi-statute / §101-driven matters, or cases in front of an examiner with an allow rate under 30%. The top 4 ordered by deadline are shown.

App #TitleExaminerDue in
17705675 DELIVERY SYSTEMS FOR IMPLANTS DUBOSE, LAUREN 22d
18873425 A SYSTEM FOR FORMING A FISTULA BETWEEN TWO ADJACENT VESSELS LEE, DAVINA EN-YIN —
18854398 VENOUS ABLATION DEVICE MENDEZ, KATHERINE H —
18696642 A SYSTEM FOR FORMING A FISTULA JAFFRI, ZEHRA —

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
18255617 EMBOLISATION SYSTEM FOR PROMOTING CLOT FORMATION MCGINNITY, JAMES RYAN 9d
18260875 Embolisation System for Promoting Blood Clot Formation LABRANCHE, BROOKE N 14d
17705675 DELIVERY SYSTEMS FOR IMPLANTS DUBOSE, LAUREN 22d
18873425 A SYSTEM FOR FORMING A FISTULA BETWEEN TWO ADJACENT VESSELS LEE, DAVINA EN-YIN —
18854398 VENOUS ABLATION DEVICE MENDEZ, KATHERINE H —
18696642 A SYSTEM FOR FORMING A FISTULA JAFFRI, ZEHRA —

Top Art Units

Art UnitApps
3771 4

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
18873425 A SYSTEM FOR FORMING A FISTULA BETWEEN TWO ADJACENT VESSELS LEE, DAVINA EN-YIN — §103§112 Non-Final OA — Pending Dec 10, 2024
18854398 VENOUS ABLATION DEVICE MENDEZ, KATHERINE H 3771 §102§103 Non-Final OA — Pending Oct 04, 2024
18696642 A SYSTEM FOR FORMING A FISTULA JAFFRI, ZEHRA — §103§112 Non-Final OA — Pending Mar 28, 2024
18260875 Embolisation System for Promoting Blood Clot Formation LABRANCHE, BROOKE N 3771 §103 Final Rejection 14d Pending Jul 10, 2023
18255617 EMBOLISATION SYSTEM FOR PROMOTING CLOT FORMATION MCGINNITY, JAMES RYAN 3771 §103 Non-Final OA 9d Pending Jun 02, 2023
17705675 DELIVERY SYSTEMS FOR IMPLANTS DUBOSE, LAUREN 3771 §103§112 Non-Final OA 22d Pending Mar 28, 2022

Managing Clearstream Technologies Limited's Patent Portfolio?

IP Author helps IP teams respond to office actions faster with AI-generated responses, examiner analytics, and prosecution intelligence.

Start Free Trial

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month