Where does Coway Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Coway Co., Ltd. ranks #2,035 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

How many patents does Coway Co., Ltd. hold?

Coway Co., Ltd. holds 195 US utility patents granted 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 (top 9% of the corpus). This composite metric weighs portfolio volume (40%), grant 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, ranking #75 of 3,536 assignees active in that subclass. Grants appear in 61 CPC subclasses total.

Is Coway Co., Ltd.'s patent grant rate increasing or decreasing?

Coway Co., Ltd.'s recent grant velocity is +100% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

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

Coway Co., Ltd.'s patents average 7.9 claims each. This is an aggregate descriptive count from the grant record; it does not establish claim scope, legal strength, enforceability, or design-around risk.

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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Coway Co., Ltd.

USPTO PatentsView assignee record - 195 granted patents across 61 technology areas, recorded in grant years 2015–2025. Grant-trend analysis is cross-referenced to USPTO Patent Public Search; it does not measure application filings, current R&D, or legal strength. Primary class: B01D (Separation).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Coway ranks #2,035 of 49,997 tracked US assignees by granted-patent volume, with 195 patents across 61 technology areas.

#2,035
of 49,997 US assignees by volume: Top 9%
by Innovation Score (53.7/100): 7.9
avg claims per patent: +100%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R2035 · Foreign Corporation #2,035 · 195 grants

GRANTS-MID · TOP-DECILE · PHOTO-FINISH · CPC-WIDE · INNOV-PAR · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-MID 195 grants
TOP-DECILE #2,035/49,997
PHOTO-FINISH China Mobile…
CPC-WIDE B01D · 61 areas
INNOV-PAR 53.7/100
CLAIMS-SPARSE 7.9 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +100% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: China Mobile Communications Group Co., Ltd. (±0 grants)

Instrument codes from this assignee’s USPTO PatentsView grant sheet: volume band, corpus rank, photo-finish peer, lead CPC, Innovation Score, claim depth, assignee type, velocity, and book completeness. Not a USPTO rating of patent strength.

How Coway’s 53.7 Innovation Score adds up

The same four weighted components behind every Innovation Score on PlainPatent: portfolio volume, grant velocity, technology breadth, and claim depth.

Volume 18.2 pts (34%) Velocity 5.7 pts (11%) Breadth 25.0 pts (47%) Claim depth 4.7 pts (9%)

Qualcomm Incorporated · highest

85
Coway · this assignee

54
Databricks · near

54
Kowa · near

54
Shifamed Holdings · near

54
UCB Biopharma SRL · near

54
3D Lighting… · lowest

7

What this shows Coway's Innovation Score is 53.7/100 (top 9% of the PatentsView-derived corpus). The chart places that score against the nearest Innovation Score peers plus corpus poles, not a reprint of the volume ranking.

Does more volume mean deeper claims for Coway?

Each dot is one of Coway’s 8 nearest volume peers (same corpus rank neighbourhood as the chart above), placed by total granted patents (horizontal) against average claims per patent (vertical). Coway’s own 7.9 claims/patent is at or below the 14.9 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

Coway vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView.

How Coway's grant cadence moved

Between 2020–2024, Coway Co., Ltd. received 120 grants versus 60 in 2015–2019 (+100% equal-window velocity, above median growth). Across complete PatentsView years, output peaked in 2020 at 30 grants and bottomed in 2015 at 3. Lead class B01D accounts for 28.7% of the portfolio across 61 subclasses. Volume neighbours: Olympus Winter & IBE GMBH (#2,031) and Versum Materials US, LLC (#2,039).

Coway's three-year grant acceleration

From 2019–2021 to 2022–2024, Coway Co., Ltd. moved from 78 to 67 grants (0.86x the prior three-year total, a multiple, not a CAGR). Among 3,296 tracked assignees with ≥100 grants and ≥20 prior-period grants, that multiple ranks #1,628. See the growth leaderboard.

Olympus Winter &…

196
Specialized Bicyc…

196
True Velocity IP…

196
China Mobile Comm…

195
Iscar

195
Med-el Elektromed…

195
Nordic Semiconduc…

195
Versum Materials…

195
Coway ◀

195

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.

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.

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Coway, neither rank-band nor same-CPC leaders (those blocks stay above). In B01D (Separation), Coway ranks #75 of 3,536 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (54 here).

UCB Biopharma SRL 54 Kowa Company, Ltd. 54 Databricks, Inc. 54 Shifamed Holdings, LLC 54

Similar claim depth

Nearest assignees by average claims per patent (7.9 here).

Weber-Stephen Products LLC 7.9 avg Hyundai Dymos Incorporated 7.9 avg Energizer Brands, LLC 7.9 avg Canva Pty Ltd 7.9 avg

Coway's Innovation Score vs. every tracked assignee

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

54 Top 9% higher than 91% of 49,997 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

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%
2025partial year	15	7.7%

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

B01D - Separation 56

C02F - Treatment OF Water, Waste Water, Sewage, OR Sludge 34

F24F - AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR Currents FOR Screening 27

B67D - Dispensing, Delivering OR Transferring Liquids, NOT Otherwise Provided FOR 18

E03D - Water-closets OR Urinals With Flushing DEVICES; Flushing Valves Therefor 16

F25C - Producing, Working OR Handling ICE 11

F25B - Refrigeration Machines, Plants OR SYSTEMS; Combined Heating AND Refrigeration SYSTEMS; Heat Pump Systems 9

A47J - Kitchen EQUIPMENT; Coffee MILLS; Spice MILLS; Apparatus FOR Making Beverages 8

F25D - REFRIGERATORS; Cold ROOMS; ICE-BOXES; Cooling OR Freezing Apparatus NOT Otherwise Provided FOR 7

D06F - Laundering, Drying, Ironing, Pressing OR Folding Textile Articles 6

F16K - VALVES; TAPS; COCKS; ACTUATING-FLOATS; Devices FOR Venting OR Aerating 6

A61H - Physical Therapy Apparatus, e.g. Devices FOR Locating OR Stimulating Reflex Points IN THE BODY; Artificial RESPIRATION; MASSAGE; Bathing Devices FOR Special Therapeutic OR Hygienic Purposes OR Specific Parts OF THE Body 6

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 6

B05B - Spraying APPARATUS; Atomising APPARATUS; Nozzles 5

A47K - Sanitary Equipment NOT Otherwise Provided FOR ; Toilet Accessories 5

Top 15 of 61 technology areas

More on this record

Data Source

USPTO PatentsView, US granted patents 2015–2025

View all rankings → How is Innovation Score calculated?

What to do with this data

Coway Co., Ltd.'s patent record in context - here's where to go next.

Coway Co., Ltd.'s lead technology class is B01D (Separation), 28.7% of its portfolio - see every assignee active in that class. Explore B01D
Ranked #2,035 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Coway Co., Ltd. against Olympus Winter & IBE GMBH, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 53.7/100 blends volume, velocity, technology breadth, and claim depth. How it's calculated

Figures reflect USPTO PatentsView grant data through May 2026; pending applications not yet granted are not counted.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent

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 by PlainPatent , US Patent Intelligence Editorial Process · 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.