Prosecution Insights
Last updated: October 25, 2026

BISN Tec Ltd.

Technology areas: Chemistry & Materials • Transportation, E-Commerce & Mechanical Systems

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

Analysis

BISN Tec Ltd. has 3 pending office actions in Transportation, E-Commerce & Mechanical Systems. The record identifies 3 distinct examiners and 3 distinct art units, indicating three separate examination assignments.

FELTON, AILEEN BAKER is the busiest examiner, with 1 pending matter. Docketing and response preparation should be organized as three examiner-specific workstreams.

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

Portfolio Summary

3
Total Pending OAs
2
Non-Final OAs
1
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.

1
Overdue
0
Due this week
0
Due this month
0
Due in next 60 days
1
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 (100%)
0
Medium (0%)
0
Easy (0%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
Multi-statute (no §101)3 (100%)

Industry Mix

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

1
Life Sciences
33% of docket
0
Information Tech
0% of docket
0
Communications
0% of docket
0
Semiconductors
0% of docket
2
Mechanical / Eng
67% 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.

30 h
Manual time on pending OAs
6 h
Time saved (low, 20%)
10 h
Time saved (mid, 35%)
0.3 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
FELTON, AILEEN BAKER 1 51.7% +16.7%
MACDONALD, STEVEN A 1 80.3% +13.0%
CRAIG, DANIEL THOMAS 1 84.8% +25.0%

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
18602493 CHEMICAL HEAT SOURCES FOR USE IN DOWN-HOLE OPERATIONS FELTON, AILEEN BAKER 98d overdue
18038205 MULTI-TRIP ANNULAR SEAL REPAIR METHOD AND ASSOCIATED EQUIPMENT MACDONALD, STEVEN A 63d
18038202 IMPROVEMENTS RELATING TO DOWNHOLE HEATER ASSEMBLIES AND METHODS OF OPERATING SUCH CRAIG, DANIEL THOMAS —

Interview Candidates (3)

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 3 ordered by deadline are shown.

App #TitleExaminerDue in
18602493 CHEMICAL HEAT SOURCES FOR USE IN DOWN-HOLE OPERATIONS FELTON, AILEEN BAKER 98d overdue
18038205 MULTI-TRIP ANNULAR SEAL REPAIR METHOD AND ASSOCIATED EQUIPMENT MACDONALD, STEVEN A 63d
18038202 IMPROVEMENTS RELATING TO DOWNHOLE HEATER ASSEMBLIES AND METHODS OF OPERATING SUCH CRAIG, DANIEL THOMAS —

Top Art Units

Art UnitApps
1734 1
3674 1
3676 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
18602493 CHEMICAL HEAT SOURCES FOR USE IN DOWN-HOLE OPERATIONS FELTON, AILEEN BAKER 1734 §102§103 Non-Final OA 98d overdue Pending Mar 12, 2024
18038205 MULTI-TRIP ANNULAR SEAL REPAIR METHOD AND ASSOCIATED EQUIPMENT MACDONALD, STEVEN A 3674 §102§103 Final Rejection 63d Pending May 22, 2023
18038202 IMPROVEMENTS RELATING TO DOWNHOLE HEATER ASSEMBLIES AND METHODS OF OPERATING SUCH CRAIG, DANIEL THOMAS 3676 §103§112 Non-Final OA — Pending May 22, 2023

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Frequently Asked Questions

How many pending USPTO office actions does BISN Tec Ltd. have?

BISN Tec Ltd. has 3 pending office actions as of October 2026, spread across 3 art units and 3 examiners.

Which USPTO examiner handles the most BISN Tec Ltd. applications?

Aileen Baker Felton has the most, with 1 of BISN Tec Ltd.'s pending office actions.

What technology area are BISN Tec Ltd.'s patent applications in?

Mostly Transportation, E-Commerce & Mechanical Systems (USPTO Tech Center 3600), based on where its pending office actions are examined.

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