USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Seoul Viosys Co., Ltd.

USPTO PatentsView assignee record - 723 granted patents across 75 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: H10H (INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Explore the portfolio See the ranking

723

Total patents granted

CPC technology areas

18.7

Avg claims per patent

+31%

5-year filing velocity

The verdict

Seoul holds 723 US patents across 75 technology areas, rank #611 of 50,000 tracked assignees.

#611
of 50,000 US assignees by volume: Top 1%
by Innovation Score (69.8/100): 18.7
avg claims per patent: +31%
filing velocity, last 5 yrs

Portfolio overview

Seoul Viosys Co., Ltd. has been granted 723 US utility patents between 2015 and 2025, placing Seoul Viosys Co., Ltd. at rank #611 across all assignees tracked by PlainPatent. This portfolio spans 75 distinct Cooperative Patent Classification (CPC) subclasses, averaging 18.7 claims per patent with primary concentration in H10H (INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS). As a Foreign Corporation, Seoul Viosys Co., Ltd. is one of the broader-portfolio assignees in the PatentsView dataset. By volume, Seoul sits between SMC Corporation (728 patents, rank #607) and Roku, Inc. (717 patents, rank #615) - the closest US assignees by grant volume. The composite Innovation Score of 69.8/100 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 410 grants, compared with 313 in the 2015–2019 window, a +31% shift in five-year velocity. Steady filing volume suggests sustained innovation without dramatic pivots. 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. Seoul Viosys Co., Ltd.'s 18.7 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while a multi-domain presence across 75 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Seoul Viosys Co., Ltd. against peers pursuing similar technology classes.

SMC

728
TCL China STAR Op…

728
ST JUDE Medical C…

727
Exxonmobil Resear…

724
Seoul Viosys ◀

723
Sanofi

721
Council OF Scient…

720
HOYA

718
Roku

717

What this shows Seoul holds 723 patents at rank #611, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Seoul

By rank, the assignees closest to #611 in granted patent volume.

Leaders in H10H (Inorganic Light-emitting Semiconductor Devices Having Pot…)

Other assignees with the most granted patents in Seoul's primary technology class.

Seoul's Innovation Score vs. every tracked assignee

Composite of portfolio volume, filing velocity, technology breadth, and claim depth (0–100)

70 Top 1% higher than 99% 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 · 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

Seoul Viosys Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	60	8.3%
2016	77	10.7%
2017	52	7.2%
2018	58	8.0%
2019	66	9.1%
2020	52	7.2%
2021	43	5.9%
2022	81	11.2%
2023	84	11.6%
2024	96	13.3%
2025	54	7.5%

Which technologies does Seoul Viosys Co., Ltd. patent most?

H10H - INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS 524

H01L - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10 333

A61L - METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES 84

F21Y - INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED 53

F21V - FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR 38

A01G - HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING 36

H10D - INORGANIC ELECTRIC SEMICONDUCTOR DEVICES 32

H05B - ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL 32

F21K - NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR 30

C02F - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE 26

Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS 26

G02B - OPTICAL ELEMENTS, SYSTEMS OR APPARATUS 25

B01D - SEPARATION 25

H10K - ORGANIC ELECTRIC SOLID-STATE DEVICES 22

G09G - ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION 20

Top 15 of 75 technology areas

Patent Moat Analysis

Portfolio Volume Moderate

Tech Breadth Multi-domain

Claim Depth Standard

Velocity Growing

Where it ranks

Overall rank by patents

#611

Across all tracked assignees

Innovation Score

69.8 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

How many patents does Seoul Viosys Co., Ltd. hold?

Seoul Viosys Co., Ltd. holds 723 US granted patents filed between 2015 and 2025, spanning 75 technology areas.

What is Seoul Viosys Co., Ltd.'s Innovation Score?

Seoul Viosys Co., Ltd. has an Innovation Score of 69.8 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Seoul Viosys Co., Ltd. focus on?

Seoul Viosys Co., Ltd.'s top technology area is H10H (INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS) with 524 patents. The company has filed patents in 75 CPC subclasses total.

Is Seoul Viosys Co., Ltd.'s patent filing rate increasing or decreasing?

Seoul Viosys Co., Ltd.'s recent filing velocity is +31% compared to the prior five-year period. The company is maintaining or growing its patent output.

What does claim depth mean for Seoul Viosys Co., Ltd.'s patents?

Seoul Viosys Co., Ltd.'s patents average 18.7 claims each. This falls within the standard range, providing solid legal coverage.

How is the Seoul Viosys 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.

How to use this portfolio

Seoul's 723 grants land it in the top 1% 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 - Seoul ranks #611 of 50,000. Top 50 holders
Most of this portfolio concentrates in H10H - see who else leads that technology area. H10H 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.

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

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

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.