Overall rank by patents
#5,038
Across all tracked assignees
USPTO 2015–2025 USPTO PatentsView US Corporation
Stealth Biotherapeutics Inc.
USPTO PatentsView assignee record — 69 granted patents across 13 technology areas, active 2016–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: A61K (PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES).
69
Total patents granted
13
CPC technology areas
12.0
Avg claims per patent
+183%
5-year filing velocity
The verdict
Stealth holds 69 US patents across 13 technology areas — rank #5,038 of 50,000 tracked assignees.
- #5,038
- of 50,000 US assignees by volume
- Top 32%
- by Innovation Score (41.8/100)
- 12.0
- avg claims per patent
- +183%
- filing velocity, last 5 yrs
Portfolio overview
Stealth BioTherapeutics Inc. has been granted 69 US utility patents between 2016 and 2025, placing Stealth BioTherapeutics Inc. at rank #5,038 across all assignees tracked by PlainPatent. This portfolio spans 13 distinct Cooperative Patent Classification (CPC) subclasses, averaging 12.0 claims per patent with primary concentration in A61K (PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES). As a US Corporation, Stealth BioTherapeutics Inc. is one of the more focused assignees in the PatentsView dataset. The composite Innovation Score of 41.8/100 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 51 grants, compared with 18 in the 2015–2019 window — a +183% shift in five-year velocity. An acceleration of this magnitude signals aggressive R&D investment and expanding technical ambition. 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. Stealth BioTherapeutics Inc.'s 12.0 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while concentration in 13 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Stealth BioTherapeutics Inc. against peers pursuing similar technology classes.
How does Stealth 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
- Stealth Biotherap… ◀ 69
Stealth BioTherapeutics Inc.
69 patents
What this shows Stealth holds 69 patents — placing it at rank #5,038 overall, well behind the volume leaders but ahead of the tens of thousands of smaller assignees in the dataset.
Stealth's Innovation Score vs. every tracked assignee
Composite of portfolio volume, filing velocity, technology breadth, and claim depth (0–100)
42 Top 32% higher than 68% 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
USPTO utility patent grants by year · 2016–2025
Grants by year
Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.
View data table
| Year | Patents Granted | Share of Period |
|---|---|---|
| 2016 | 1 | 1.4% |
| 2017 | 4 | 5.8% |
| 2018 | 6 | 8.7% |
| 2019 | 7 | 10.1% |
| 2020 | 12 | 17.4% |
| 2021 | 6 | 8.7% |
| 2022 | 8 | 11.6% |
| 2023 | 9 | 13.0% |
| 2024 | 10 | 14.5% |
| 2025 | 6 | 8.7% |
Which technologies does Stealth BioTherapeutics Inc. patent most?
Top 13 of 13 technology areas
Patent Moat Analysis
Portfolio Volume Light
Tech Breadth Focused
Claim Depth Standard
Velocity Accelerating
Frequently Asked Questions
How many patents does Stealth BioTherapeutics Inc. hold?
Stealth BioTherapeutics Inc. holds 69 US granted patents filed between 2016 and 2025, spanning 13 technology areas.
What is Stealth BioTherapeutics Inc.'s Innovation Score?
Stealth BioTherapeutics Inc. has an Innovation Score of 41.8 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).
What technology areas does Stealth BioTherapeutics Inc. focus on?
Stealth BioTherapeutics Inc.'s top technology area is A61K (PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES) with 51 patents. The company has filed patents in 13 CPC subclasses total.
Is Stealth BioTherapeutics Inc.'s patent filing rate increasing or decreasing?
Stealth BioTherapeutics Inc.'s recent filing velocity is +183% compared to the prior five-year period. This indicates accelerating innovation.
What does claim depth mean for Stealth BioTherapeutics Inc.'s patents?
Stealth BioTherapeutics Inc.'s patents average 12.0 claims each. This falls within the standard range, providing solid legal coverage.
How is the Stealth BioTherapeutics 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.
Learn More
How to use this portfolio
Stealth's 69 grants land it in the top 32% 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 — Stealth ranks #5,038 of 50,000. Top 50 holders
- Most of this portfolio concentrates in A61K — see who else leads that technology area. A61K 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
A61K technology
Stealth BioTherapeutics Inc.'s primary CPC class — all holders and yearly trends
Top 50 patent holders
See where Stealth BioTherapeutics Inc. 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.
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
