Where does K.D.W. Company Limited rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), K.D.W. Company Limited ranks #48,080 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 K.D.W. Company Limited hold?

K.D.W. Company Limited holds 5 US utility patents granted between 2022 and 2025, spanning 4 technology areas.

What is K.D.W. Company Limited's Innovation Score?

K.D.W. Company Limited has an Innovation Score of 43.2 out of 100 (top 29% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does K.D.W. Company Limited focus on?

K.D.W. Company Limited's top technology area is A47L (Domestic Washing OR Cleaning ; Suction Cleaners IN General) with 4 patents, ranking #171 of 516 assignees active in that subclass. Grants appear in 4 CPC subclasses total.

Is K.D.W. Company Limited's patent grant rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for K.D.W. Company Limited.

What does claim depth mean for K.D.W. Company Limited's patents?

K.D.W. Company Limited's patents average 16.6 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 K.D.W. Company Limited 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

K.D.W. Company Limited

USPTO PatentsView assignee record - 5 granted patents across 4 technology areas, recorded in grant years 2022–2025. 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: A47L (Domestic Washing OR Cleaning ; Suction Cleaners IN General).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, K.d.w. ranks #48,080 of 49,997 tracked US assignees by granted-patent volume, with 5 patents across 4 technology areas.

#48,080
of 49,997 US assignees by volume: Top 29%
by Innovation Score (43.2/100): 16.6
avg claims per patent

USPTO PatentsView assignee plate

Corpus R48080 · Foreign Corporation #48,080 · 5 grants

GRANTS-MICRO · BOTTOM-DECILE · PHOTO-FINISH · CPC-NARROW · INNOV-PAR · CLAIMS-RICH · TYPE-FRNCORP · SPAN-YRS · BOOK-RICH

GRANTS-MICRO 5 grants
BOTTOM-DECILE #48,080/49,997
PHOTO-FINISH K Eklund Innovation
CPC-NARROW A47L · 4 areas
INNOV-PAR 43.2/100
CLAIMS-RICH 16.6 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2022–2025 · 4y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: K. Eklund Innovation (±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 K.d.w.’s 43.2 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 6.2 pts (14%) Velocity 20.0 pts (46%) Breadth 7.1 pts (16%) Claim depth 10.0 pts (23%)

Qualcomm Incorporated · highest

85
K D W · this assignee

43
3D Lighting… · lowest

7

What this shows K.d.w.'s Innovation Score is 43.2/100 (top 29% 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 K.d.w.?

Each dot is one of K.d.w.’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). K.d.w.’s own 16.6 claims/patent is ABOVE the 10.8 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where K.d.w.'s grants concentrate

K.D.W. Company Limited is a focused PatentsView assignee: 4 CPC subclasses with 80% of grants classified under A47L (Domestic Washing OR Cleaning ; Suction Cleaners IN General). Peak complete grant year is 2023 (2 grants) versus a trough of 1 in 2022. By volume, K.d.w. sits between K'nex Limited Partnership Group and Kaci Intermodal Systems, LLC.

K.d.w.'s three-year grant acceleration

K.D.W. Company Limited shows 4 grants in 2022–2024 against only 0 in 2019–2021. That prior window is too thin for a growth multiple (rename and spin-out assignees look artificially high when the baseline is near zero), so PlainPatent withholds a ranked acceleration claim here.

K'nex Partnership…

5
K-lab

5
K Eklund Innovati…

5
K Hartwell Oy Ab

5
K K Sun Metalon

5
Kaatsu Japan

5
Kaba GallenschÜTZ

5
Kaci Intermodal S…

5
K D W ◀

5

What this shows K.D.W. holds 5 patents at rank #48,051, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near KDW

By rank, the assignees closest to #48,051 in granted patent volume.

Leaders in A47L (Domestic Washing OR Cleaning)

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

K.d.w.'s Innovation Score vs. every tracked assignee

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

43 Top 29% higher than 71% 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 · 2022–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2022–2019 baseline. Full figures in the table below.

View data table

K.D.W. Company Limited patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2022	1	20.0%
2023	2	40.0%
2024	1	20.0%
2025partial year	1	20.0%

Which technologies does K.D.W. Company Limited patent most?

A47L - Domestic Washing OR Cleaning ; Suction Cleaners IN General 4

F28D - Heat-exchange Apparatus, NOT Provided FOR IN Another Subclass, IN Which THE Heat-exchange Media DO NOT Come Into Direct Contact 2

F28F - Details OF Heat-exchange AND Heat-transfer Apparatus, OF General Application 2

F16L - PIPES; Joints OR Fittings FOR PIPES; Supports FOR Pipes, Cables OR Protective TUBING; Means FOR Thermal Insulation IN General 1

Top 4 of 4 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

K.D.W. Company Limited's patent record in context - here's where to go next.

K.D.W. Company Limited's lead technology class is A47L (Domestic Washing OR Cleaning ; Suction Cleaners IN General), 80% of its portfolio - see every assignee active in that class. Explore A47L
Ranked #48,080 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare K.D.W. Company Limited against K'nex Limited Partnership Group, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 43.2/100 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.