Where does KWH Mirka Ltd rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), KWH Mirka Ltd ranks #17,836 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 KWH Mirka Ltd hold?

KWH Mirka Ltd holds 16 US utility patents granted between 2015 and 2021, spanning 7 technology areas.

What is KWH Mirka Ltd's Innovation Score?

KWH Mirka Ltd has an Innovation Score of 25.4 out of 100 (17th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does KWH Mirka Ltd focus on?

KWH Mirka Ltd's top technology area is B24D (Tools FOR Grinding, Buffing OR Sharpening) with 6 patents, ranking #27 of 165 assignees active in that subclass. Grants appear in 7 CPC subclasses total.

Is KWH Mirka Ltd's patent grant rate increasing or decreasing?

KWH Mirka Ltd's recent grant velocity is -86% compared to the prior five-year period (grant years, not application filing dates). Grant activity has slowed relative to earlier years.

What does claim depth mean for KWH Mirka Ltd's patents?

KWH Mirka Ltd's patents average 10.5 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 KWH Mirka 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

KWH Mirka Ltd

USPTO PatentsView assignee record - 16 granted patents across 7 technology areas, recorded in grant years 2015–2021. 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: B24D (Tools FOR Grinding, Buffing OR Sharpening).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, KWH ranks #17,836 of 49,997 tracked US assignees by granted-patent volume, with 16 patents across 7 technology areas.

#17,836
of 49,997 US assignees by volume: 17th percentile
by Innovation Score (25.4/100): 10.5
avg claims per patent: -86%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R17836 · Foreign Corporation #17,836 · 16 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-PAR · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-MICRO 16 grants
MID-PACK #17,836/49,997
PHOTO-FINISH Kann Manufacturing
CPC-NARROW B24D · 7 areas
INNOV-THIN 25.4/100
CLAIMS-PAR 10.5 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -86% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Kann Manufacturing Corporation (±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 KWH’s 25.4 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 9.8 pts (38%) Velocity 0.0 pts (0%) Breadth 9.4 pts (37%) Claim depth 6.3 pts (25%)

Qualcomm Incorporated · highest

85
KWH Mirka · this assignee

25
3D Lighting… · lowest

7

What this shows KWH's Innovation Score is 25.4/100 (17th percentile 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 KWH?

Each dot is one of KWH’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). KWH’s own 10.5 claims/patent is at or below the 14.4 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where KWH's grants concentrate

KWH Mirka Ltd is a focused PatentsView assignee: 7 CPC subclasses with 37.5% of grants classified under B24D (Tools FOR Grinding, Buffing OR Sharpening). Peak complete grant year is 2015 (5 grants) versus a trough of 1 in 2020. By volume, KWH sits between KK Wind Solutions A/S and Kinetic Technologies.

KK Wind Solutions…

16
Korea Polytechnic…

16
Kurt Manufacturing

16
Kuzco Lighting

16
Kann Manufacturing

16
Kelly Slater Wave

16
Kenyon Internatio…

16
Kinetic

16
KWH Mirka ◀

16

What this shows KWH holds 16 patents at rank #17,823, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near KWH

By rank, the assignees closest to #17,823 in granted patent volume.

Leaders in B24D (Tools FOR Grinding)

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

KWH's Innovation Score vs. every tracked assignee

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

25 17th percentile higher than 17% 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 · 2015–2021

Grants by year

Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.

View data table

KWH Mirka Ltd patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	5	31.3%
2016	3	18.8%
2017	3	18.8%
2018	3	18.8%
2020	1	6.3%
2021	1	6.3%

Which technologies does KWH Mirka Ltd patent most?

B24D - Tools FOR Grinding, Buffing OR Sharpening 6

B24B - Machines, Devices, OR Processes FOR Grinding OR Polishing ; Dressing OR Conditioning OF Abrading SURFACES; Feeding OF Grinding, Polishing, OR Lapping Agents 4

D21H - Pulp COMPOSITIONS; Preparation Thereof NOT Covered BY Subclasses D21c OR D21D; Impregnating OR Coating OF PAPER; Treatment OF Finished Paper NOT Covered BY Class B31 OR Subclass D21G; Paper NOT Otherwise Provided FOR 1

C09K - Materials FOR Miscellaneous Applications, NOT Provided FOR Elsewhere 1

B32B - Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form 1

F16D - Couplings FOR Transmitting ROTATION; CLUTCHES; Brakes 1

C08L - Compositions OF Macromolecular Compounds 1

Top 7 of 7 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

KWH Mirka Ltd's patent record in context - here's where to go next.

KWH Mirka Ltd's lead technology class is B24D (Tools FOR Grinding, Buffing OR Sharpening), 37.5% of its portfolio - see every assignee active in that class. Explore B24D
Ranked #17,836 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare KWH Mirka Ltd against KK Wind Solutions A/S, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 25.4/100 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.