USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Protean Electric Limited

USPTO PatentsView assignee record — 44 granted patents across 24 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: H02K (DYNAMO-ELECTRIC MACHINES).

44
Total patents granted
24
CPC technology areas
13.1
Avg claims per patent
-24%
5-year filing velocity

The verdict

Protean holds 44 US patents across 24 technology areas — rank #7,457 of 50,000 tracked assignees.

#7,457
of 50,000 US assignees by volume
Top 31%
by Innovation Score (42.1/100)
13.1
avg claims per patent
-24%
filing velocity, last 5 yrs

Portfolio overview

PROTEAN ELECTRIC LIMITED has been granted 44 US utility patents between 2015 and 2025, placing PROTEAN ELECTRIC LIMITED at rank #7,457 across all assignees tracked by PlainPatent. This portfolio spans 24 distinct Cooperative Patent Classification (CPC) subclasses, averaging 13.1 claims per patent with primary concentration in H02K (DYNAMO-ELECTRIC MACHINES). As a Foreign Corporation, PROTEAN ELECTRIC LIMITED is one of the more focused assignees in the PatentsView dataset. The composite Innovation Score of 42.1/100 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 19 grants, compared with 25 in the 2015–2019 window — a -24% shift in five-year velocity. A cooling filing rate may reflect portfolio consolidation, shifting priorities, or reduced R&D throughput. The Foreign 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. PROTEAN ELECTRIC LIMITED's 13.1 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while a multi-domain presence across 24 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark PROTEAN ELECTRIC LIMITED against peers pursuing similar technology classes.

How does PROTEAN compare?

Granted US patents 2015–2025 versus the largest corporate holders — this company marked ◀

patents

What this shows PROTEAN holds 44 patents — placing it at rank #7,457 overall, well behind the volume leaders but ahead of the tens of thousands of smaller assignees in the dataset.

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

PROTEAN's Innovation Score vs. every tracked assignee

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

42 Top 31% higher than 69% 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%). This entry sits in this band. 50–60: 5,058 US assignees (10%). Above this entry. 60–70: 1,537 US assignees (3%). Above this entry. 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

USPTO utility patent grants by year · 2015–2025

02468 20152016201720182019202020212022202320242025 1
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
PROTEAN ELECTRIC LIMITED patent grants by year, 2015–2025
Year Patents Granted Share of Period
2015 5 11.4%
2016 7 15.9%
2017 2 4.5%
2018 4 9.1%
2019 7 15.9%
2020 2 4.5%
2021 7 15.9%
2022 3 6.8%
2023 2 4.5%
2024 4 9.1%
2025 1 2.3%

Which technologies does PROTEAN ELECTRIC LIMITED patent most?

Top 15 of 24 technology areas

Patent Moat Analysis

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

Where it ranks

Overall rank by patents

#7,457

Across all tracked assignees

Innovation Score

42.1 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 PROTEAN ELECTRIC LIMITED hold?
PROTEAN ELECTRIC LIMITED holds 44 US granted patents filed between 2015 and 2025, spanning 24 technology areas.
What is PROTEAN ELECTRIC LIMITED's Innovation Score?
PROTEAN ELECTRIC LIMITED has an Innovation Score of 42.1 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).
What technology areas does PROTEAN ELECTRIC LIMITED focus on?
PROTEAN ELECTRIC LIMITED's top technology area is H02K (DYNAMO-ELECTRIC MACHINES) with 28 patents. The company has filed patents in 24 CPC subclasses total.
Is PROTEAN ELECTRIC LIMITED's patent filing rate increasing or decreasing?
PROTEAN ELECTRIC LIMITED's recent filing velocity is -24% compared to the prior five-year period. Filing activity has slowed relative to earlier years.
What does claim depth mean for PROTEAN ELECTRIC LIMITED's patents?
PROTEAN ELECTRIC LIMITED's patents average 13.1 claims each. This falls within the standard range, providing solid legal coverage.
How is the PROTEAN ELECTRIC LIMITED 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.

Learn More

How to use this portfolio

Protean's 44 grants land it in the top 31% 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 — Protean ranks #7,457 of 50,000. Top 50 holders
  • Most of this portfolio concentrates in H02K — see who else leads that technology area. H02K 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.

Explore the patent dataset

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.

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