Overall rank by patents
#28,323
Across all tracked assignees
USPTO 2015–2025 USPTO PatentsView Foreign Corporation
Canadian Solar Manufacturing (changshu) Inc.
USPTO PatentsView assignee record - 9 granted patents across 4 technology areas, active 2020–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: Y02E (REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION).
9
Total patents granted
4
CPC technology areas
5.8
Avg claims per patent
-
5-year filing velocity
The verdict
Canadian holds 9 US patents across 4 technology areas, rank #28,323 of 50,000 tracked assignees.
- #28,323
- of 50,000 US assignees by volume
- Top 83%
- by Innovation Score (25.2/100)
- 5.8
- avg claims per patent
Portfolio overview
Canadian Solar Manufacturing (changshu) Inc. has been granted 9 US utility patents between 2020 and 2025, placing Canadian Solar Manufacturing (changshu) Inc. at rank #28,323 across all assignees tracked by PlainPatent. This portfolio spans 4 distinct Cooperative Patent Classification (CPC) subclasses, averaging 5.8 claims per patent with primary concentration in Y02E (REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION). As a Foreign Corporation, Canadian Solar Manufacturing (changshu) Inc. is one of the more focused assignees in the PatentsView dataset. By volume, Canadian sits between C3 Corporation (9 patents, rank #28,319) and Capital Normal University (9 patents, rank #28,327) - the closest US assignees by grant volume. The composite Innovation Score of 25.2/100 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 2020 through 2025, with 9 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. Canadian Solar Manufacturing (changshu) Inc.'s 5.8 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while specialization in 4 subclasses reflects a tightly scoped invention area. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Canadian Solar Manufacturing (changshu) Inc. against peers pursuing similar technology classes.
Who files at Canadian's volume?
Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀
- C3
C3 Corporation
9 patents
- Calyxia
CALYXIA
9 patents
- Cambridge Glycosc…
CAMBRIDGE GLYCOSCIENCE LTD
9 patents
- CAME S p A
CAME S.p.A.
9 patents
- Cancer Hospital C…
CANCER HOSPITAL, CHINESE ACADEMY OF MEDICAL SCIENCES
9 patents
- Capartis
CAPARTIS AG
9 patents
- Capella Therapeut…
CAPELLA THERAPEUTICS, INC.
9 patents
- Capital Normal Un…
CAPITAL NORMAL UNIVERSITY
9 patents
- Canadian Solar Ma… ◀
CANADIAN SOLAR MANUFACTURING (CHANGSHU) INC.
9 patents
What this shows Canadian holds 9 patents at rank #28,323, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.
Companies ranked near Canadian
By rank, the assignees closest to #28,323 in granted patent volume.
- C3 Corporation #28,319 · 9 patents
- Calyxia #28,320 · 9 patents
- Cambridge Glycoscience Ltd #28,321 · 9 patents
- CAME S.p.a. #28,322 · 9 patents
- Cancer Hospital, Chinese Academy OF Medical Sciences #28,324 · 9 patents
- Capartis Ag #28,325 · 9 patents
- Capella Therapeutics, Inc. #28,326 · 9 patents
- Capital Normal University #28,327 · 9 patents
Leaders in Y02E (Reduction OF Greenhouse GAS [GHG] Emissions)
Other assignees with the most granted patents in Canadian's primary technology class.
- Samsung Electronics Co., Ltd. 6,395 in class
- Toyota Jidosha Kabushiki Kaisha 3,460 in class
- LG CHEM, Ltd. 2,639 in class
- LG Energy Solution, Ltd. 2,060 in class
- Panasonic Intellectual Property Management Co., Ltd. 1,752 in class
- General Electric Company 1,650 in class
- Hyundai Motor Company 1,589 in class
- Honda Motor Co., Ltd. 1,355 in class
Canadian's Innovation Score vs. every tracked assignee
Composite of portfolio volume, filing velocity, technology breadth, and claim depth (0–100)
25 Top 83% higher than 17% 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 2020–2019 baseline. Full figures in the table below.
View data table
| Year | Patents Granted | Share of Period |
|---|---|---|
| 2020 | 3 | 33.3% |
| 2021 | 1 | 11.1% |
| 2023 | 1 | 11.1% |
| 2024 | 3 | 33.3% |
| 2025 | 1 | 11.1% |
Which technologies does Canadian Solar Manufacturing (changshu) Inc. patent most?
Top 4 of 4 technology areas
Patent Moat Analysis
Portfolio Volume Light
Tech Breadth Specialized
Claim Depth Simple
Frequently Asked Questions
How many patents does Canadian Solar Manufacturing (changshu) Inc. hold?
Canadian Solar Manufacturing (changshu) Inc. holds 9 US granted patents filed between 2020 and 2025, spanning 4 technology areas.
What is Canadian Solar Manufacturing (changshu) Inc.'s Innovation Score?
Canadian Solar Manufacturing (changshu) Inc. has an Innovation Score of 25.2 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).
What technology areas does Canadian Solar Manufacturing (changshu) Inc. focus on?
Canadian Solar Manufacturing (changshu) Inc.'s top technology area is Y02E (REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION) with 3 patents. The company has filed patents in 4 CPC subclasses total.
Is Canadian Solar Manufacturing (changshu) Inc.'s patent filing rate increasing or decreasing?
Insufficient historical data is available to calculate a velocity trend for Canadian Solar Manufacturing (changshu) Inc..
What does claim depth mean for Canadian Solar Manufacturing (changshu) Inc.'s patents?
Canadian Solar Manufacturing (changshu) Inc.'s patents average 5.8 claims each. This is relatively simple claim structure, typical for focused inventions.
How is the Canadian Solar Manufacturing (changshu) 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
Canadian's 9 grants land it in the top 83% 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 - Canadian ranks #28,323 of 50,000. Top 50 holders
- Most of this portfolio concentrates in Y02E - see who else leads that technology area. Y02E 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.