Prosecution Insights
Last updated: October 01, 2026

Durrenberg

Technology area: Medical Devices & Mechanical Engineering

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

Analysis

Durrenberg has 1 pending office action in the Medical Devices & Mechanical Engineering technology area. This action is assigned to 1 distinct art unit and 1 distinct examiner. The current prosecution activity is limited to this single application, reflecting a highly specific technical focus. This 1 to 1 ratio between the pending action and the examiner indicates a centralized review process for the company's current filing.

Thomas M Wittenschlaeger is the busiest examiner with 1 pending office action. This single action represents the total pending workload for the company, as there is only 1 pending office action in the entire portfolio. The portfolio's current status indicates a very specific and singular interaction with the USPTO. Because the company only deals with 1 distinct examiner and 1 distinct art unit, the prosecution outcome is entirely dependent on the interpretation of this one individual. This narrow footprint suggests a very targeted approach to patenting within the medical device sector.

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

Portfolio Summary

1
Total Pending OAs
1
Non-Final OAs
0
Final Rejections
0
Advisory / Quayle

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.

1
Hard (100%)
0
Medium (0%)
0
Easy (0%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
Multi-statute (no §101)1 (100%)

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
1
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.

10 h
Manual time on pending OAs
2 h
Time saved (low, 20%)
4 h
Time saved (mid, 35%)
0.1 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
WITTENSCHLAEGER, THOMAS M 1 71.5% +11.8%

Hard Cases (1)

Multi-statute / §101-driven matters, or cases in front of an examiner with an allow rate under 30%. The top 1 ordered by deadline are shown.

App #TitleExaminerDue in
19475958 PACKAGING METHOD AND MACHINE FOR CLOSING A RECTANGULAR PARALLELEPIPED BOX THAT IS OPEN AT THE TOP WITH A LID WITTENSCHLAEGER, THOMAS M —

Interview Candidates (1)

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 1 ordered by deadline are shown.

App #TitleExaminerDue in
19475958 PACKAGING METHOD AND MACHINE FOR CLOSING A RECTANGULAR PARALLELEPIPED BOX THAT IS OPEN AT THE TOP WITH A LID WITTENSCHLAEGER, THOMAS M —

Top Art Units

Art UnitApps
3731 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
19475958 PACKAGING METHOD AND MACHINE FOR CLOSING A RECTANGULAR PARALLELEPIPED BOX THAT IS OPEN AT THE TOP WITH A LID WITTENSCHLAEGER, THOMAS M 3731 §103§112 Non-Final OA — Pending Oct 16, 2025

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