PlainPatent
USPTO 2015–2025 USPTO PatentsView US Corporation

Enphase Energy, Inc.

USPTO PatentsView assignee record - 181 granted patents across 54 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: H02J (CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY).

Explore the portfolio See the ranking
181
Total patents granted
54
CPC technology areas
18.3
Avg claims per patent
-3%
5-year filing velocity

The verdict

Enphase holds 181 US patents across 54 technology areas, rank #2,173 of 50,000 tracked assignees.

#2,173
of 50,000 US assignees by volume
Top 3%
by Innovation Score (60.5/100)
18.3
avg claims per patent
-3%
filing velocity, last 5 yrs

Portfolio overview

Enphase Energy, Inc. has been granted 181 US utility patents between 2015 and 2025, placing Enphase Energy, Inc. at rank #2,173 across all assignees tracked by PlainPatent. This portfolio spans 54 distinct Cooperative Patent Classification (CPC) subclasses, averaging 18.3 claims per patent with primary concentration in H02J (CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY). As a US Corporation, Enphase Energy, Inc. is one of the broader-portfolio assignees in the PatentsView dataset. By volume, Enphase sits between TPK Touch Solutions (xiamen) Inc. (182 patents, rank #2,169) and 3shape A/s (180 patents, rank #2,177) - the closest US assignees by grant volume. The composite Innovation Score of 60.5/100 blends portfolio volume, filing velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Filing cadence tells the strategic story. Between 2020 and 2025 the company received 89 grants, compared with 92 in the 2015–2019 window, a -3% shift in five-year velocity. A cooling filing rate may reflect portfolio consolidation, shifting priorities, or reduced R&D throughput. The US Corporation classification further shapes interpretation, since corporate, government, and individual filers pursue patents for materially different reasons.

Claim depth and technology breadth together indicate competitive posture. Enphase Energy, Inc.'s 18.3 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while a multi-domain presence across 54 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Enphase Energy, Inc. against peers pursuing similar technology classes.

Who files at Enphase's volume?

Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀

patents

What this shows Enphase holds 181 patents at rank #2,173, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Source USPTO PatentsView, granted utility patents As of 2015–2025

Companies ranked near Enphase

By rank, the assignees closest to #2,173 in granted patent volume.

Leaders in H02J (Circuit Arrangements OR Systems FOR Supplying OR Distribu…)

Other assignees with the most granted patents in Enphase's primary technology class.

Enphase's Innovation Score vs. every tracked assignee

Composite of portfolio volume, filing velocity, technology breadth, and claim depth (0–100)

60 Top 3% higher than 97% of 50,000 US assignees

0–10: 687 US assignees (1%). Below this entry. 10–20: 2,527 US assignees (5%). Below this entry. 20–30: 13,162 US assignees (26%). Below this entry. 30–40: 15,294 US assignees (31%). Below this entry. 40–50: 11,491 US assignees (23%). Below this entry. 50–60: 5,058 US assignees (10%). Below this entry. 60–70: 1,537 US assignees (3%). This entry sits in this band. 70–80: 234 US assignees (0%). Above this entry. 80–90: 10 US assignees (0%). Above this entry. 90–100: 0 US assignees (0%). Above this entry. This assignee 0 100 every tracked assignee, bucketed by value

Each bar is a band; taller bars hold more US assignees. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source USPTO PatentsView, PlainPatent Innovation Score · 2015–2025

10152025 20152016201720182019202020212022202320242025 11
USPTO utility patent grants by year · 2015–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.

View data table
Enphase Energy, Inc. patent grants by year, 2015–2025
Year Patents Granted Share of Period
2015 16 8.8%
2016 24 13.3%
2017 14 7.7%
2018 19 10.5%
2019 19 10.5%
2020 11 6.1%
2021 19 10.5%
2022 20 11.0%
2023 12 6.6%
2024 16 8.8%
2025 11 6.1%

Which technologies does Enphase Energy, Inc. patent most?

Top 15 of 54 technology areas

Patent Moat Analysis

Portfolio Volume Moderate
Tech Breadth Multi-domain
Claim Depth Standard
Velocity Declining

Where it ranks

Overall rank by patents

#2,173

Across all tracked assignees

Innovation Score

60.5 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

How many patents does Enphase Energy, Inc. hold?
Enphase Energy, Inc. holds 181 US granted patents filed between 2015 and 2025, spanning 54 technology areas.
What is Enphase Energy, Inc.'s Innovation Score?
Enphase Energy, Inc. has an Innovation Score of 60.5 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).
What technology areas does Enphase Energy, Inc. focus on?
Enphase Energy, Inc.'s top technology area is H02J (CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY) with 105 patents. The company has filed patents in 54 CPC subclasses total.
Is Enphase Energy, Inc.'s patent filing rate increasing or decreasing?
Enphase Energy, Inc.'s recent filing velocity is -3% compared to the prior five-year period. Filing activity has slowed relative to earlier years.
What does claim depth mean for Enphase Energy, Inc.'s patents?
Enphase Energy, Inc.'s patents average 18.3 claims each. This falls within the standard range, providing solid legal coverage.
How is the Enphase Energy, Inc. patent data sourced?
All patent data comes from USPTO PatentsView, a public research dataset maintained by the United States Patent and Trademark Office covering US granted utility patents from 2015 to 2025.

How to use this portfolio

Enphase's 181 grants land it in the top 3% by Innovation Score, but volume alone doesn't tell you where the strength sits.

  • Read that count against the largest US assignees before treating it as dominance - Enphase ranks #2,173 of 50,000. Top 50 holders
  • Most of this portfolio concentrates in H02J - see who else leads that technology area. H02J leaders
  • Check what the four-part Innovation Score actually rewards before comparing it to another company. How the score works

Patent counts and the Innovation Score measure patenting activity, not commercial success or the legal strength of any patent. Many patents are filed defensively. Verify the status of an individual patent against official USPTO records.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent Editorial

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the USPTO PatentsView database. Consult a qualified professional before making decisions based on this data.

Read our methodology - how this data is sourced, computed, and verified.

Data sources used on this page
  • USPTO PatentsView - the disambiguated bulk patent-grant, assignee, and CPC data this page's figures are derived from. patentsview.org
  • Cooperative Patent Classification (CPC) - the joint USPTO/EPO classification scheme used to group patents by technology area. cooperativepatentclassification.org
  • USPTO Patent Public Search - the official interface to verify the status of any individual patent. ppubs.uspto.gov

Every figure on PlainPatent is rendered directly from USPTO source data, no number is typed in by an editor. This page draws directly on USPTO source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.