Overall rank by patents
#7,619
Across all tracked assignees
USPTO 2015–2025 USPTO PatentsView Foreign Corporation
Sumitomo Electric Optifrontier Co., Ltd.
USPTO PatentsView assignee record — 43 granted patents across 13 technology areas, active 2021–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: G02B (OPTICAL ELEMENTS, SYSTEMS OR APPARATUS).
43
Total patents granted
13
CPC technology areas
9.9
Avg claims per patent
—
5-year filing velocity
The verdict
Sumitomo holds 43 US patents across 13 technology areas — rank #7,619 of 50,000 tracked assignees.
- #7,619
- of 50,000 US assignees by volume
- Top 11%
- by Innovation Score (51.8/100)
- 9.9
- avg claims per patent
Portfolio overview
SUMITOMO ELECTRIC OPTIFRONTIER CO., LTD. has been granted 43 US utility patents between 2021 and 2025, placing SUMITOMO ELECTRIC OPTIFRONTIER CO., LTD. at rank #7,619 across all assignees tracked by PlainPatent. This portfolio spans 13 distinct Cooperative Patent Classification (CPC) subclasses, averaging 9.9 claims per patent with primary concentration in G02B (OPTICAL ELEMENTS, SYSTEMS OR APPARATUS). As a Foreign Corporation, SUMITOMO ELECTRIC OPTIFRONTIER CO., LTD. is one of the more focused assignees in the PatentsView dataset. The composite Innovation Score of 51.8/100 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. Historical data spans 2021 through 2025, with 43 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. SUMITOMO ELECTRIC OPTIFRONTIER CO., LTD.'s 9.9 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while concentration in 13 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark SUMITOMO ELECTRIC OPTIFRONTIER CO., LTD. against peers pursuing similar technology classes.
How does SUMITOMO 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
- Sumitomo Electric… ◀ 43
SUMITOMO ELECTRIC OPTIFRONTIER CO., LTD.
43 patents
What this shows SUMITOMO holds 43 patents — placing it at rank #7,619 overall, well behind the volume leaders but ahead of the tens of thousands of smaller assignees in the dataset.
SUMITOMO's Innovation Score vs. every tracked assignee
Composite of portfolio volume, filing velocity, technology breadth, and claim depth (0–100)
52 Top 11% higher than 89% 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 · 2021–2025
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 | 2.3% |
| 2022 | 7 | 16.3% |
| 2023 | 4 | 9.3% |
| 2024 | 19 | 44.2% |
| 2025 | 12 | 27.9% |
Which technologies does SUMITOMO ELECTRIC OPTIFRONTIER CO., LTD. patent most?
Top 13 of 13 technology areas
Patent Moat Analysis
Portfolio Volume Light
Tech Breadth Focused
Claim Depth Simple
Frequently Asked Questions
How many patents does SUMITOMO ELECTRIC OPTIFRONTIER CO., LTD. hold?
SUMITOMO ELECTRIC OPTIFRONTIER CO., LTD. holds 43 US granted patents filed between 2021 and 2025, spanning 13 technology areas.
What is SUMITOMO ELECTRIC OPTIFRONTIER CO., LTD.'s Innovation Score?
SUMITOMO ELECTRIC OPTIFRONTIER CO., LTD. has an Innovation Score of 51.8 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).
What technology areas does SUMITOMO ELECTRIC OPTIFRONTIER CO., LTD. focus on?
SUMITOMO ELECTRIC OPTIFRONTIER CO., LTD.'s top technology area is G02B (OPTICAL ELEMENTS, SYSTEMS OR APPARATUS) with 31 patents. The company has filed patents in 13 CPC subclasses total.
Is SUMITOMO ELECTRIC OPTIFRONTIER CO., LTD.'s patent filing rate increasing or decreasing?
Insufficient historical data is available to calculate a velocity trend for SUMITOMO ELECTRIC OPTIFRONTIER CO., LTD..
What does claim depth mean for SUMITOMO ELECTRIC OPTIFRONTIER CO., LTD.'s patents?
SUMITOMO ELECTRIC OPTIFRONTIER CO., LTD.'s patents average 9.9 claims each. This is relatively simple claim structure, typical for focused inventions.
How is the SUMITOMO ELECTRIC OPTIFRONTIER CO., LTD. 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
Sumitomo's 43 grants land it in the top 11% 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 — Sumitomo ranks #7,619 of 50,000. Top 50 holders
- Most of this portfolio concentrates in G02B — see who else leads that technology area. G02B 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
G02B technology
SUMITOMO ELECTRIC OPTIFRONTIER CO., LTD.'s primary CPC class — all holders and yearly trends
Top 50 patent holders
See where SUMITOMO ELECTRIC OPTIFRONTIER CO., LTD. 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
