PlainPatent
USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Coway Co., Ltd.

USPTO PatentsView assignee record - 195 granted patents across 61 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: B01D (SEPARATION).

Explore the portfolio See the ranking
195
Total patents granted
61
CPC technology areas
7.9
Avg claims per patent
+125%
5-year filing velocity

The verdict

Coway holds 195 US patents across 61 technology areas, rank #2,035 of 50,000 tracked assignees.

#2,035
of 50,000 US assignees by volume
Top 9%
by Innovation Score (53.7/100)
7.9
avg claims per patent
+125%
filing velocity, last 5 yrs

Portfolio overview

Coway Co., Ltd. has been granted 195 US utility patents between 2015 and 2025, placing Coway Co., Ltd. at rank #2,035 across all assignees tracked by PlainPatent. This portfolio spans 61 distinct Cooperative Patent Classification (CPC) subclasses, averaging 7.9 claims per patent with primary concentration in B01D (SEPARATION). As a Foreign Corporation, Coway Co., Ltd. is one of the broader-portfolio assignees in the PatentsView dataset. By volume, Coway sits between Olympus Winter & IBE Gmbh (196 patents, rank #2,031) and Versum Materials US, Llc (195 patents, rank #2,039) - the closest US assignees by grant volume. The composite Innovation Score of 53.7/100 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 135 grants, compared with 60 in the 2015–2019 window, a +125% shift in five-year velocity. An acceleration of this magnitude signals aggressive R&D investment and expanding technical ambition. 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. Coway Co., Ltd.'s 7.9 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while a multi-domain presence across 61 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Coway Co., Ltd. against peers pursuing similar technology classes.

Who files at Coway's volume?

Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀

patents

What this shows Coway holds 195 patents at rank #2,035, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Source USPTO PatentsView, granted utility patents As of 2015–2025

Companies ranked near Coway

By rank, the assignees closest to #2,035 in granted patent volume.

Leaders in B01D (Separation)

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

Coway's Innovation Score vs. every tracked assignee

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

54 Top 9% higher than 91% of 50,000 US assignees

0–10: 687 US assignees (1%). Below this entry. 10–20: 2,527 US assignees (5%). Below this entry. 20–30: 13,162 US assignees (26%). Below this entry. 30–40: 15,294 US assignees (31%). Below this entry. 40–50: 11,491 US assignees (23%). Below this entry. 50–60: 5,058 US assignees (10%). This entry sits in this band. 60–70: 1,537 US assignees (3%). Above this entry. 70–80: 234 US assignees (0%). Above this entry. 80–90: 10 US assignees (0%). Above this entry. 90–100: 0 US assignees (0%). Above this entry. This assignee 0 100 every tracked assignee, bucketed by value

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

010203040 20152016201720182019202020212022202320242025 15
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
Coway Co., Ltd. patent grants by year, 2015–2025
Year Patents Granted Share of Period
2015 3 1.5%
2016 8 4.1%
2017 10 5.1%
2018 14 7.2%
2019 25 12.8%
2020 30 15.4%
2021 23 11.8%
2022 23 11.8%
2023 16 8.2%
2024 28 14.4%
2025 15 7.7%

Which technologies does Coway Co., Ltd. patent most?

Top 15 of 61 technology areas

Patent Moat Analysis

Portfolio Volume Moderate
Tech Breadth Multi-domain
Claim Depth Simple
Velocity Accelerating

Where it ranks

Overall rank by patents

#2,035

Across all tracked assignees

Innovation Score

53.7 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 Coway Co., Ltd. hold?
Coway Co., Ltd. holds 195 US granted patents filed between 2015 and 2025, spanning 61 technology areas.
What is Coway Co., Ltd.'s Innovation Score?
Coway Co., Ltd. has an Innovation Score of 53.7 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).
What technology areas does Coway Co., Ltd. focus on?
Coway Co., Ltd.'s top technology area is B01D (SEPARATION) with 56 patents. The company has filed patents in 61 CPC subclasses total.
Is Coway Co., Ltd.'s patent filing rate increasing or decreasing?
Coway Co., Ltd.'s recent filing velocity is +125% compared to the prior five-year period. This indicates accelerating innovation.
What does claim depth mean for Coway Co., Ltd.'s patents?
Coway Co., Ltd.'s patents average 7.9 claims each. This is relatively simple claim structure, typical for focused inventions.
How is the Coway 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

Coway's 195 grants land it in the top 9% 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 - Coway ranks #2,035 of 50,000. Top 50 holders
  • Most of this portfolio concentrates in B01D - see who else leads that technology area. B01D 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

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.