Prosecution Insights
Last updated: August 15, 2026

Evoqua Water Technologies LLC

7 pending office actions • 6 art units • 7 examiners • 0 of 7 (0%) have an AI response strategy ready • 14 patents granted in the last 365 days

Portfolio Summary

7
Total Pending OAs
1
Non-Final OAs
3
Final Rejections
3
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 5 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.

3
Overdue
0
Due this week
2
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. 5 of the docket's apps have a known mailing date.

-30dToday30d60d90d120d
Overdue (3)Due ≤ 30 days (2)

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 (14%)
6
Medium (86%)
0
Easy (0%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§103 only6 (86%)
Multi-statute (no §101)1 (14%)

Industry Mix

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

7
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.

70 h
Manual time on pending OAs
14 h
Time saved (low, 20%)
24 h
Time saved (mid, 35%)
0.6 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
KEYWORTH, PETER 1 58.3% +24.0%
VARMA, AKASH K 1 66.1% +34.5%
PEO, JONATHAN M 1 48.2% +48.1%
NORRIS, CLAIRE A 1 65.7% +28.1%
CONTRERAS, CIEL P 1 54.3% +33.5%
ROLLAND, ALEX A 1 47.4% +26.4%
KOLTONOW, ANDREW ROBERT 1 46.3% +33.8%

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
17281239 Monovalent Selective Cation Exchange Membrane ROLLAND, ALEX A 125d overdue

Interview Candidates (7)

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 7 ordered by deadline are shown.

App #TitleExaminerDue in
17281239 Monovalent Selective Cation Exchange Membrane ROLLAND, ALEX A 125d overdue
18408853 Treatment of Liquid Streams Containing High Concentrations of Solids Using Ballasted Clarification KEYWORTH, PETER 38d overdue
17270852 System and Method for Electrochemical Oxidation of Polyfluoroalkyl Substances in Water KOLTONOW, ANDREW ROBERT 28d overdue
17967838 Sequencing Batch Reactor Systems and Methods NORRIS, CLAIRE A 28d
18562416 Regulation of Onsite Peroxide Generation for Improved Peroxone Advanced Oxidative Process Control VARMA, AKASH K 29d
18377823 Half-cell electrochemical configurations for self-cleaning electrochlorination devices PEO, JONATHAN M
17439395 ELECTROLYZER SYSTEM CONFIGURATIONS FOR ENHANCEMENT OF ULTRAVIOLET ADVANCED OXIDATION PROCESSES CONTRERAS, CIEL P

Top Art Units

Art UnitApps
1779 2
1777 1
1773 1
1794 1
1759 1
1795 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
18408853 Treatment of Liquid Streams Containing High Concentrations of Solids Using Ballasted Clarification KEYWORTH, PETER 1777 §103 Final Rejection 38d overdue Pending Jan 10, 2024
18562416 Regulation of Onsite Peroxide Generation for Improved Peroxone Advanced Oxidative Process Control VARMA, AKASH K 1773 §103 Non-Final OA 29d Pending Nov 20, 2023
18377823 Half-cell electrochemical configurations for self-cleaning electrochlorination devices PEO, JONATHAN M 1779 §103 Non-Final OA Pending Oct 08, 2023
17967838 Sequencing Batch Reactor Systems and Methods NORRIS, CLAIRE A 1779 §103Other Final Rejection 28d Pending Oct 17, 2022
17439395 ELECTROLYZER SYSTEM CONFIGURATIONS FOR ENHANCEMENT OF ULTRAVIOLET ADVANCED OXIDATION PROCESSES CONTRERAS, CIEL P 1794 §103 Non-Final OA Pending Feb 21, 2022
17281239 Monovalent Selective Cation Exchange Membrane ROLLAND, ALEX A 1759 §103§112 Non-Final OA 125d overdue Pending Sep 27, 2021
17270852 System and Method for Electrochemical Oxidation of Polyfluoroalkyl Substances in Water KOLTONOW, ANDREW ROBERT 1795 §103 Final Rejection 28d overdue Pending Feb 23, 2021

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