Prosecution Insights
Last updated: September 17, 2026

Chemstone Inc.

4 pending office actions • 3 art units • 4 examiners • 0 of 4 (0%) have an AI response strategy ready • 2 patents granted in the last 365 days

Portfolio Summary

4
Total Pending OAs
3
Non-Final OAs
1
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.

3
Hard (75%)
1
Medium (25%)
0
Easy (0%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§103 only1 (25%)
Multi-statute (no §101)3 (75%)

Industry Mix

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

3
Life Sciences
75% of docket
0
Information Tech
0% of docket
0
Communications
0% of docket
0
Semiconductors
0% of docket
0
Mechanical / Eng
0% of docket
1
Business / Other
25% 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.

40 h
Manual time on pending OAs
8 h
Time saved (low, 20%)
14 h
Time saved (mid, 35%)
0.3 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
MULVANEY, ELIZABETH EVANS 1 78.8% +15.1%
FORTUNA, JOSE A 1 79.5% +9.9%
NERANGIS, VICKEY M 1 56.5% +29.1%
ROBINSON, MICHAEL 1 61.7% +20.3%

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
18914783 Method of Modifying Polymer Barrier Films MULVANEY, ELIZABETH EVANS —
17295309 NOVEL AQUEOUS ADHESIVES USING SACCHARIDE FATTY ACID ESTERS NERANGIS, VICKEY M —
17314826 METHODS FOR BIOBASED DERIVATIZATION OF CELLULOSIC AND SYNTHETIC MATERIALS AND ARTICLES OBTAINED THEREFROM ROBINSON, MICHAEL —

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
18914783 Method of Modifying Polymer Barrier Films MULVANEY, ELIZABETH EVANS —
17295309 NOVEL AQUEOUS ADHESIVES USING SACCHARIDE FATTY ACID ESTERS NERANGIS, VICKEY M —
17314826 METHODS FOR BIOBASED DERIVATIZATION OF CELLULOSIC AND SYNTHETIC MATERIALS AND ARTICLES OBTAINED THEREFROM ROBINSON, MICHAEL —

Top Art Units

Art UnitApps
1748 1
1763 1
1744 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
18914783 Method of Modifying Polymer Barrier Films MULVANEY, ELIZABETH EVANS — §103§112Other Non-Final OA — Pending Oct 14, 2024
18035393 ENHANCED CELLULOSE NANOFIBRILS (CNF) FORTUNA, JOSE A 1748 §103 Non-Final OA — Pending May 04, 2023
17295309 NOVEL AQUEOUS ADHESIVES USING SACCHARIDE FATTY ACID ESTERS NERANGIS, VICKEY M 1763 §102§103 Final Rejection — Pending May 19, 2021
17314826 METHODS FOR BIOBASED DERIVATIZATION OF CELLULOSIC AND SYNTHETIC MATERIALS AND ARTICLES OBTAINED THEREFROM ROBINSON, MICHAEL 1744 §102§103 Non-Final OA — Pending May 07, 2021

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