Overall rank by patents
#49,211
Across all tracked assignees
USPTO 2015–2025 USPTO PatentsView Foreign Corporation
North Star Technology Limited
USPTO PatentsView assignee record - 5 granted patents across 1 technology areas, active 2021–2024. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: E04H (BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL).
5
Total patents granted
1
CPC technology areas
7.0
Avg claims per patent
-
5-year filing velocity
The verdict
North holds 5 US patents across 1 technology areas, rank #49,211 of 50,000 tracked assignees.
- #49,211
- of 50,000 US assignees by volume
- Top 54%
- by Innovation Score (33.9/100)
- 7.0
- avg claims per patent
Portfolio overview
North Star Technology Limited has been granted 5 US utility patents between 2021 and 2024, placing North Star Technology Limited at rank #49,211 across all assignees tracked by PlainPatent. This portfolio spans 1 distinct Cooperative Patent Classification (CPC) subclasses, averaging 7.0 claims per patent with primary concentration in E04H (BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL). As a Foreign Corporation, North Star Technology Limited is one of the more focused assignees in the PatentsView dataset. By volume, North sits between Norbord Inc. (5 patents, rank #49,207) and Northwest River Supplies, Inc. (5 patents, rank #49,215) - the closest US assignees by grant volume. The composite Innovation Score of 33.9/100 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. Historical data spans 2021 through 2024, with 5 total grants over that period. Velocity comparisons require five years of historical filings to calibrate. 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. North Star Technology Limited's 7.0 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while specialization in 1 subclass reflects a tightly scoped invention area. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark North Star Technology Limited against peers pursuing similar technology classes.
Who files at North's volume?
Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀
- Norbord
Norbord Inc.
5 patents
- Norgas Metering
Norgas Metering Technologies, Inc.
5 patents
- North China Elect…
North China Electric Power University (Baoding)
5 patents
- North China Unive…
North China University of Technology
5 patents
- Northern Power Sy…
Northern Power Systems, Inc.
5 patents
- Northwest Biother…
Northwest Biotherapeutics, Inc.
5 patents
- Northwest Pipe
Northwest Pipe Company
5 patents
- Northwest River S…
Northwest River Supplies, Inc.
5 patents
- North Star Techno… ◀
North Star Technology Limited
5 patents
What this shows North holds 5 patents at rank #49,211, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.
Companies ranked near North
By rank, the assignees closest to #49,211 in granted patent volume.
- Norbord Inc. #49,207 · 5 patents
- Norgas Metering Technologies, Inc. #49,208 · 5 patents
- North China Electric Power University (baoding) #49,209 · 5 patents
- North China University Of Technology #49,210 · 5 patents
- Northern Power Systems, Inc. #49,212 · 5 patents
- Northwest Biotherapeutics, Inc. #49,213 · 5 patents
- Northwest Pipe Company #49,214 · 5 patents
- Northwest River Supplies, Inc. #49,215 · 5 patents
Leaders in E04H (Buildings OR LIKE Structures FOR Particular Purposes)
Other assignees with the most granted patents in North's primary technology class.
North's Innovation Score vs. every tracked assignee
Composite of portfolio volume, filing velocity, technology breadth, and claim depth (0–100)
34 Top 54% higher than 46% of 50,000 US assignees
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
Grants by year
Teal-shaded recent years (2020–present) versus the 2021–2019 baseline. Full figures in the table below.
View data table
| Year | Patents Granted | Share of Period |
|---|---|---|
| 2021 | 1 | 20.0% |
| 2022 | 2 | 40.0% |
| 2023 | 1 | 20.0% |
| 2024 | 1 | 20.0% |
Which technologies does North Star Technology Limited patent most?
Top 1 of 1 technology areas
Patent Moat Analysis
Portfolio Volume Light
Tech Breadth Specialized
Claim Depth Simple
Frequently Asked Questions
How many patents does North Star Technology Limited hold?
North Star Technology Limited holds 5 US granted patents filed between 2021 and 2024, spanning 1 technology areas.
What is North Star Technology Limited's Innovation Score?
North Star Technology Limited has an Innovation Score of 33.9 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).
What technology areas does North Star Technology Limited focus on?
North Star Technology Limited's top technology area is E04H (BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL) with 2 patents. The company has filed patents in 1 CPC subclasses total.
Is North Star Technology Limited's patent filing rate increasing or decreasing?
Insufficient historical data is available to calculate a velocity trend for North Star Technology Limited.
What does claim depth mean for North Star Technology Limited's patents?
North Star Technology Limited's patents average 7.0 claims each. This is relatively simple claim structure, typical for focused inventions.
How is the North Star Technology 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.
How to use this portfolio
North's 5 grants land it in the top 54% 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 - North ranks #49,211 of 50,000. Top 50 holders
- Most of this portfolio concentrates in E04H - see who else leads that technology area. E04H 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.
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.