Prosecution Insights
Last updated: August 18, 2026

Celanese Eva Performance Polymers LLC

9 pending office actions • 5 art units • 8 examiners • 0 of 9 (0%) have an AI response strategy ready • 2 patents granted in the last 365 days

Portfolio Summary

9
Total Pending OAs
5
Non-Final OAs
4
Final Rejections
0
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.

3
Overdue
0
Due this week
0
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
Overdue (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.

2
Hard (22%)
7
Medium (78%)
0
Easy (0%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§103 only4 (44%)
Double-patenting + other3 (33%)
Multi-statute (no §101)2 (22%)

Industry Mix

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

8
Life Sciences
89% of docket
0
Information Tech
0% of docket
0
Communications
0% of docket
0
Semiconductors
0% of docket
1
Mechanical / Eng
11% 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.

90 h
Manual time on pending OAs
18 h
Time saved (low, 20%)
31 h
Time saved (mid, 35%)
0.8 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
BARBER, KIMBERLY 2 73.4% +18.0%
LIPPERT, JOHN WILLIAM 1 56.6% +41.3%
BASQUILL, SEAN M 1 38.8% +21.6%
SCOTLAND, REBECCA LYNN 1 0.0% +0.0%
PRAGANI, RAJAN 1 50.0% +72.5%
ZAMORY, JUSTIN L 1 72.7% +17.4%
WISTNER, SARAH CLINKSCALES 1 21.7% +74.4%
KWON, JOHN SEUNGJAI 1 45.1% +20.2%

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
18171406 Intravaginal Ring Device for the Delivery of Aromatase Inhibitor BASQUILL, SEAN M 17d overdue
18171409 Implantable Medical Device for the Delivery of Aromatase Inhibitor SCOTLAND, REBECCA LYNN
17948277 Refillable Implantable Device for Delivering a Drug Compound WISTNER, SARAH CLINKSCALES

Interview Candidates (8)

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 8 ordered by deadline are shown.

App #TitleExaminerDue in
17705441 Implantable Medical Device for the Delivery of Nucleic Acid-Encapsulated Particles KWON, JOHN SEUNGJAI 51d overdue
18157134 Method for Prohibiting and/or Treating an Eye Condition BARBER, KIMBERLY 26d overdue
18171406 Intravaginal Ring Device for the Delivery of Aromatase Inhibitor BASQUILL, SEAN M 17d overdue
18474292 Implantable Medical Device for the Delivery of a Nucleic Acid BARBER, KIMBERLY
18332826 Monolithic Implantable Device for Sustained Release of an Antibody LIPPERT, JOHN WILLIAM
18157123 Implantable Device for Delivery of a Tyrosine Kinase Inhibitor PRAGANI, RAJAN
17948271 Refillable Implantable Device for Delivering a Drug Compound ZAMORY, JUSTIN L
17948277 Refillable Implantable Device for Delivering a Drug Compound WISTNER, SARAH CLINKSCALES

Top Art Units

Art UnitApps
1615 4
1614 2
1637 1
3783 1
1616 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
18474292 Implantable Medical Device for the Delivery of a Nucleic Acid BARBER, KIMBERLY 1637 §103§112DP Non-Final OA Pending Sep 26, 2023
18332826 Monolithic Implantable Device for Sustained Release of an Antibody LIPPERT, JOHN WILLIAM 1615 §103 Non-Final OA Pending Jun 12, 2023
18171406 Intravaginal Ring Device for the Delivery of Aromatase Inhibitor BASQUILL, SEAN M 1614 §103§112 Final Rejection 17d overdue Pending Feb 20, 2023
18171409 Implantable Medical Device for the Delivery of Aromatase Inhibitor SCOTLAND, REBECCA LYNN 1615 §103§112 Final Rejection Pending Feb 20, 2023
18157123 Implantable Device for Delivery of a Tyrosine Kinase Inhibitor PRAGANI, RAJAN 1614 §103§112DP Non-Final OA Pending Jan 20, 2023
18157134 Method for Prohibiting and/or Treating an Eye Condition BARBER, KIMBERLY 1615 §103 Final Rejection 26d overdue Pending Jan 20, 2023
17948271 Refillable Implantable Device for Delivering a Drug Compound ZAMORY, JUSTIN L 3783 §103Other Final Rejection Pending Sep 20, 2022
17948277 Refillable Implantable Device for Delivering a Drug Compound WISTNER, SARAH CLINKSCALES 1616 §103DP Non-Final OA Pending Sep 20, 2022
17705441 Implantable Medical Device for the Delivery of Nucleic Acid-Encapsulated Particles KWON, JOHN SEUNGJAI 1615 §103 Non-Final OA 51d overdue Pending Mar 28, 2022

Managing Celanese Eva Performance Polymers LLC'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