Prosecution Insights
Last updated: May 29, 2026

Enphase Energy Inc.

10 pending office actions • 6 art units • 10 examiners • 0 of 10 (0%) have an AI response strategy ready • 10 patents granted in the last 365 days

Portfolio Summary

10
Total Pending OAs
8
Non-Final OAs
2
Final Rejections
0
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 10 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.

5
Overdue
2
Due this week
1
Due this month
1
Due in next 60 days
1
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. 10 of the docket's apps have a known mailing date.

-30dToday30d60d90d120d
Overdue (5)Due ≤ 7 days (2)Due ≤ 30 days (1)Due ≤ 60 days (1)Due later (1)

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.

0
Hard (0%)
10
Medium (100%)
0
Easy (0%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§103 only9 (90%)
§102 only1 (10%)

Industry Mix

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

1
Life Sciences
10% of docket
1
Information Tech
10% of docket
0
Communications
0% of docket
8
Semiconductors
80% 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.

100 h
Manual time on pending OAs
20 h
Time saved (low, 20%)
35 h
Time saved (mid, 35%)
0.9 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
COMAS TORRES, YAHVEH 1 87.3% +6.3%
LEE, PAUL D 1 82.4% +15.5%
CAVALLARI, DANIEL 1 78.2% +14.1%
IANNUCCI, LOUISE JAMES 1
FERRELL, CARTER W 1 61.3% +48.0%
NIMOX, RAYMOND LONDALE 1 70.1% +11.0%
KOTOWSKI, LISA MICHELLE 1 44.4% +66.7%
YANCHUS III, PAUL B 1 82.9% +14.1%
KESSIE, DANIEL 1 61.3% +24.7%
KARAVIAS, DENISE R 1 61.8% +34.5%

Quick Wins (3)

Cases in front of an examiner with an allow rate of 80%+ where the difficulty is Easy or Medium. The top 3 ordered by deadline are shown.

App #TitleExaminerDue in
18142122 METHODS AND APPARATUS FOR AUDITING AND TRACKING CLEAN ENERGY FLOW AMONGST DISTRIBUTED ENERGY RESOURCES YANCHUS III, PAUL B 17d overdue
18387934 METHOD AND APPARATUS FOR IDENTIFYING DISTRIBUTED ENERGY RESOURCE SYSTEMS LOCATED BEHIND A TRANSFORMER WITHIN UTILITY GRID INFRASTRUCTURE LEE, PAUL D 10d overdue
18748651 SWITCHING METHODS AND APPARATUS CONFIGURED FOR USE WITH CYCLOCONVERTERS COMAS TORRES, YAHVEH 9d overdue

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
18230011 METHODS AND APPARATUS FOR MEASURING RESONANT CURRENT IN A POWER CONVERTER FERRELL, CARTER W 50d overdue
18125296 METHOD AND APPARATUS FOR MANAGING DISTRIBUTED ENERGY RESOURCES KESSIE, DANIEL 30d overdue
18142122 METHODS AND APPARATUS FOR AUDITING AND TRACKING CLEAN ENERGY FLOW AMONGST DISTRIBUTED ENERGY RESOURCES YANCHUS III, PAUL B 17d overdue
18387934 METHOD AND APPARATUS FOR IDENTIFYING DISTRIBUTED ENERGY RESOURCE SYSTEMS LOCATED BEHIND A TRANSFORMER WITHIN UTILITY GRID INFRASTRUCTURE LEE, PAUL D 10d overdue
18196213 STORAGE SYSTEM CONFIGURED FOR USE WITH AN ENERGY MANAGEMENT SYSTEM NIMOX, RAYMOND LONDALE 6d
18380815 LOAD CONTROLLER WITH SMART RELAY MODULE CAVALLARI, DANIEL 7d
18142249 METHODS AND APPARATUS FOR PROVIDING CHARGING-RELATED BENEFITS TO AN ELECTRIC VEHICLE USER KOTOWSKI, LISA MICHELLE 8d
17381338 METHOD AND APPARATUS FOR COMMISSIONING A DISTRIBUTED ENERGY GENERATION SYSTEM KARAVIAS, DENISE R 34d

Top Art Units

Art UnitApps
2857 4
2836 2
2838 1
1721 1
2859 1
2115 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
18748651 SWITCHING METHODS AND APPARATUS CONFIGURED FOR USE WITH CYCLOCONVERTERS COMAS TORRES, YAHVEH 2838 §103 Non-Final OA 9d overdue Pending Jun 20, 2024
18387934 METHOD AND APPARATUS FOR IDENTIFYING DISTRIBUTED ENERGY RESOURCE SYSTEMS LOCATED BEHIND A TRANSFORMER WITHIN UTILITY GRID INFRASTRUCTURE LEE, PAUL D 2857 §103 Non-Final OA 10d overdue Pending Nov 08, 2023
18380815 LOAD CONTROLLER WITH SMART RELAY MODULE CAVALLARI, DANIEL 2836 §103 Non-Final OA 7d Pending Oct 17, 2023
18377155 STACKABLE FRAME DESIGN FOR POUCH CELL BATTERY PACKS IANNUCCI, LOUISE JAMES 1721 §102 Non-Final OA 70d Pending Oct 05, 2023
18230011 METHODS AND APPARATUS FOR MEASURING RESONANT CURRENT IN A POWER CONVERTER FERRELL, CARTER W 2857 §103 Non-Final OA 50d overdue Pending Aug 03, 2023
18196213 STORAGE SYSTEM CONFIGURED FOR USE WITH AN ENERGY MANAGEMENT SYSTEM NIMOX, RAYMOND LONDALE 2857 §103 Final Rejection 6d Pending May 11, 2023
18142249 METHODS AND APPARATUS FOR PROVIDING CHARGING-RELATED BENEFITS TO AN ELECTRIC VEHICLE USER KOTOWSKI, LISA MICHELLE 2859 §103 Non-Final OA 8d Pending May 02, 2023
18142122 METHODS AND APPARATUS FOR AUDITING AND TRACKING CLEAN ENERGY FLOW AMONGST DISTRIBUTED ENERGY RESOURCES YANCHUS III, PAUL B 2115 §103 Final Rejection 17d overdue Pending May 02, 2023
18125296 METHOD AND APPARATUS FOR MANAGING DISTRIBUTED ENERGY RESOURCES KESSIE, DANIEL 2836 §103 Non-Final OA 30d overdue Pending Mar 23, 2023
17381338 METHOD AND APPARATUS FOR COMMISSIONING A DISTRIBUTED ENERGY GENERATION SYSTEM KARAVIAS, DENISE R 2857 §103 Non-Final OA 34d Pending Jul 21, 2021

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