Overall rank by patents
#10,903
Across all tracked assignees
USPTO 2015–2025 USPTO PatentsView US Corporation
ClearSign Technologies Corporation
USPTO PatentsView assignee record — 28 granted patents across 15 technology areas, active 2020–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: F23D (BURNERS).
28
Total patents granted
15
CPC technology areas
34.0
Avg claims per patent
—
5-year filing velocity
Portfolio overview
ClearSign Technologies Corporation has been granted 28 US utility patents between 2020 and 2025, placing ClearSign Technologies Corporation at rank #10,903 across all assignees tracked by PlainPatent. This portfolio spans 15 distinct Cooperative Patent Classification (CPC) subclasses, averaging 34.0 claims per patent with primary concentration in F23D (BURNERS). As a US Corporation, ClearSign Technologies Corporation is one of the more focused assignees in the PatentsView dataset. The composite Innovation Score of 46.0/100 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 28 total grants over that period. Velocity comparisons require five years of historical filings to calibrate. 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. ClearSign Technologies Corporation's 34.0 average claims per patent reflects complex, broadly scoped inventions that are difficult for competitors to design around, while concentration in 15 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark ClearSign Technologies Corporation against peers pursuing similar technology classes.
How does ClearSign compare?
Granted US patents 2015–2025 versus the largest corporate holders — this company marked ◀
- Samsung
SAMSUNG ELECTRONICS CO., LTD.
106,890 patents
- International Bus…
International Business Machines Corporation
72,926 patents
- Canon 34,378
Canon Kabushiki Kaisha
34,378 patents
- LG 32,607
LG ELECTRONICS INC.
32,607 patents
- Taiwan Semiconduc… 31,041
TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
31,041 patents
- Apple 30,560
Apple Inc.
30,560 patents
- Qualcomm Incorpor… 30,354
QUALCOMM Incorporated
30,354 patents
- Intel 27,498
Intel Corporation
27,498 patents
- Clearsign ◀ 28
ClearSign Technologies Corporation
28 patents
What this shows ClearSign holds 28 patents — placing it at rank #10,903 overall, well behind the volume leaders but ahead of the tens of thousands of smaller assignees in the dataset.
USPTO utility patent grants by year · 2020–2025
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 | 10 | 35.7% |
| 2021 | 4 | 14.3% |
| 2022 | 6 | 21.4% |
| 2024 | 6 | 21.4% |
| 2025 | 2 | 7.1% |
Which technologies does ClearSign Technologies Corporation patent most?
Top 15 of 15 technology areas
Patent Moat Analysis
Portfolio Volume Light
Tech Breadth Focused
Claim Depth Complex
Frequently Asked Questions
How many patents does ClearSign Technologies Corporation hold?
ClearSign Technologies Corporation holds 28 US granted patents filed between 2020 and 2025, spanning 15 technology areas.
What is ClearSign Technologies Corporation's Innovation Score?
ClearSign Technologies Corporation has an Innovation Score of 46.0 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).
What technology areas does ClearSign Technologies Corporation focus on?
ClearSign Technologies Corporation's top technology area is F23D (BURNERS) with 25 patents. The company has filed patents in 15 CPC subclasses total.
Is ClearSign Technologies Corporation's patent filing rate increasing or decreasing?
Insufficient historical data is available to calculate a velocity trend for ClearSign Technologies Corporation.
What does claim depth mean for ClearSign Technologies Corporation's patents?
ClearSign Technologies Corporation's patents average 34.0 claims each. This indicates complex, broadly scoped patents that are harder for competitors to design around.
How is the ClearSign Technologies Corporation 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
Explore the patent dataset
F23D technology
ClearSign Technologies Corporation's primary CPC class — all holders and yearly trends
Top 50 patent holders
See where ClearSign Technologies Corporation ranks among the largest US patent assignees
All technology classes
Browse every CPC technology area by patent activity
How the score works
The four dimensions behind the Innovation Score
Related
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.
All federal data sources used on this page
- USPTO PatentsView — official U.S. Patent and Trademark Office bulk patent data. patentsview.org
- USPTO Patent Application Information Retrieval (PAIR) — application status and file history. uspto.gov/patents/pair
- USPTO Bulk Data Storage System — comprehensive patent text + claims dataset. bulkdata.uspto.gov
- USPTO CPC Classification — Cooperative Patent Classification scheme for technology categorization. uspto.gov/cpc
- SEC EDGAR — public filings cross-reference for assignee corporate entity matching. sec.gov/edgar
- WIPO PATENTSCOPE — international patent context (related international filings). wipo.int/patentscope
