Overall rank by patents
#4,887
Across all tracked assignees
USPTO 2015–2025 USPTO PatentsView US Corporation
International Rectifier Corporation
USPTO PatentsView assignee record — 71 granted patents across 18 technology areas, active 2015–2015. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: H01L (SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10).
71
Total patents granted
18
CPC technology areas
18.2
Avg claims per patent
-100%
5-year filing velocity
The verdict
International holds 71 US patents across 18 technology areas — rank #4,887 of 50,000 tracked assignees.
- #4,887
- of 50,000 US assignees by volume
- Top 35%
- by Innovation Score (40.7/100)
- 18.2
- avg claims per patent
- -100%
- filing velocity, last 5 yrs
Portfolio overview
International Rectifier Corporation has been granted 71 US utility patents between 2015 and 2015, placing International Rectifier Corporation at rank #4,887 across all assignees tracked by PlainPatent. This portfolio spans 18 distinct Cooperative Patent Classification (CPC) subclasses, averaging 18.2 claims per patent with primary concentration in H01L (SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10). As a US Corporation, International Rectifier Corporation is one of the more focused assignees in the PatentsView dataset. The composite Innovation Score of 40.7/100 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 0 grants, compared with 71 in the 2015–2019 window — a -100% shift in five-year velocity. A cooling filing rate may reflect portfolio consolidation, shifting priorities, or reduced R&D throughput. 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. International Rectifier Corporation's 18.2 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while concentration in 18 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark International Rectifier Corporation against peers pursuing similar technology classes.
How does International 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
- International Rec… ◀ 71
International Rectifier Corporation
71 patents
What this shows International holds 71 patents — placing it at rank #4,887 overall, well behind the volume leaders but ahead of the tens of thousands of smaller assignees in the dataset.
International's Innovation Score vs. every tracked assignee
Composite of portfolio volume, filing velocity, technology breadth, and claim depth (0–100)
41 Top 35% higher than 65% 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 2015–2019 baseline. Full figures in the table below.
View data table
| Year | Patents Granted | Share of Period |
|---|---|---|
| 2015 | 71 | 100.0% |
Which technologies does International Rectifier Corporation patent most?
Top 15 of 18 technology areas
Patent Moat Analysis
Portfolio Volume Light
Tech Breadth Focused
Claim Depth Standard
Velocity Declining
Frequently Asked Questions
How many patents does International Rectifier Corporation hold?
International Rectifier Corporation holds 71 US granted patents filed between 2015 and 2015, spanning 18 technology areas.
What is International Rectifier Corporation's Innovation Score?
International Rectifier Corporation has an Innovation Score of 40.7 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).
What technology areas does International Rectifier Corporation focus on?
International Rectifier Corporation's top technology area is H01L (SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10) with 52 patents. The company has filed patents in 18 CPC subclasses total.
Is International Rectifier Corporation's patent filing rate increasing or decreasing?
International Rectifier Corporation's recent filing velocity is -100% compared to the prior five-year period. Filing activity has slowed relative to earlier years.
What does claim depth mean for International Rectifier Corporation's patents?
International Rectifier Corporation's patents average 18.2 claims each. This falls within the standard range, providing solid legal coverage.
How is the International Rectifier 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
How to use this portfolio
International's 71 grants land it in the top 35% 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 — International ranks #4,887 of 50,000. Top 50 holders
- Most of this portfolio concentrates in H01L — see who else leads that technology area. H01L 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
H01L technology
International Rectifier Corporation's primary CPC class — all holders and yearly trends
Top 50 patent holders
See where International Rectifier 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.
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
