Prosecution Insights
Last updated: August 16, 2026

Pfeifer & Langen UK Limited

5 pending office actions • 3 art units • 5 examiners • 0 of 5 (0%) have an AI response strategy ready

Portfolio Summary

5
Total Pending OAs
3
Non-Final OAs
2
Final Rejections
0
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 1 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.

0
Overdue
1
Due this week
0
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 (60%)
2
Medium (40%)
0
Easy (0%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§103 only1 (20%)
Double-patenting + other1 (20%)
Multi-statute (no §101)3 (60%)

Industry Mix

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

5
Life Sciences
100% of docket
0
Information Tech
0% of docket
0
Communications
0% of docket
0
Semiconductors
0% of docket
0
Mechanical / Eng
0% 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.

50 h
Manual time on pending OAs
10 h
Time saved (low, 20%)
18 h
Time saved (mid, 35%)
0.4 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
MERRIAM, ANDREW E 1 25.0% +32.1%
BEKKER, KELLY JO 1 16.6% +35.2%
DIVIESTI, KARLA ISOBEL 1 4.2% +25.0%
MCNEIL, JENNIFER C 1 22.1% +15.3%
KOHLER, STEPHANIE A 1 31.7% +31.1%

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
18486733 SACCHARIDE COMPOSITIONS HAVING SUCROSE-LIKE CHARACTERISTICS AND RELATED METHODS BEKKER, KELLY JO 5d
18488702 INSOLUBLE SACCHARIDE-COMPRISING COMPOSITIONS AND RELATED METHODS MERRIAM, ANDREW E
18486738 FREEZING POINT MODULATION DIVIESTI, KARLA ISOBEL
18486869 SOLUBLE AND INSOLUBLE SACCHARIDE COMPOSITIONS AND RELATED METHODS MCNEIL, JENNIFER C

Interview Candidates (5)

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 5 ordered by deadline are shown.

App #TitleExaminerDue in
18486733 SACCHARIDE COMPOSITIONS HAVING SUCROSE-LIKE CHARACTERISTICS AND RELATED METHODS BEKKER, KELLY JO 5d
18488702 INSOLUBLE SACCHARIDE-COMPRISING COMPOSITIONS AND RELATED METHODS MERRIAM, ANDREW E
18486738 FREEZING POINT MODULATION DIVIESTI, KARLA ISOBEL
18486869 SOLUBLE AND INSOLUBLE SACCHARIDE COMPOSITIONS AND RELATED METHODS MCNEIL, JENNIFER C
17858609 OLIGOSACCHARIDE COMPOSITIONS AND METHODS OF MAKING THEM KOHLER, STEPHANIE A

Top Art Units

Art UnitApps
1791 2
1792 2
1793 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
18488702 INSOLUBLE SACCHARIDE-COMPRISING COMPOSITIONS AND RELATED METHODS MERRIAM, ANDREW E 1791 §103§112 Non-Final OA Pending Oct 17, 2023
18486733 SACCHARIDE COMPOSITIONS HAVING SUCROSE-LIKE CHARACTERISTICS AND RELATED METHODS BEKKER, KELLY JO 1792 §103§112 Final Rejection 5d Pending Oct 13, 2023
18486738 FREEZING POINT MODULATION DIVIESTI, KARLA ISOBEL 1792 §103§112 Non-Final OA Pending Oct 13, 2023
18486869 SOLUBLE AND INSOLUBLE SACCHARIDE COMPOSITIONS AND RELATED METHODS MCNEIL, JENNIFER C 1793 §103 Final Rejection Pending Oct 13, 2023
17858609 OLIGOSACCHARIDE COMPOSITIONS AND METHODS OF MAKING THEM KOHLER, STEPHANIE A 1791 §103DP Non-Final OA Pending Jul 06, 2022

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