Where does K&W Tools Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), K&W Tools Co., Ltd. ranks #48,252 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&W Tools Co., Ltd. hold?

K&W Tools Co., Ltd. holds 5 US utility patents granted between 2016 and 2021, spanning 5 technology areas.

What is K&W Tools Co., Ltd.'s Innovation Score?

K&W Tools Co., Ltd. has an Innovation Score of 19.3 out of 100 (6th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is K&W Tools Co., Ltd.'s patent grant rate increasing or decreasing?

K&W Tools Co., Ltd.'s recent grant velocity is -75% 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 K&W Tools Co., Ltd.'s patents?

K&W Tools Co., Ltd.'s patents average 8.6 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&W Tools 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

K&W Tools Co., Ltd.

Q: What technology areas does K&W Tools Co., Ltd. focus on?

K&W Tools Co., Ltd.'s top technology area is F16B (Devices FOR Fastening OR Securing Constructional Elements OR Machine Parts Together, e.g. Nails, Bolts, Circlips, Clamps, Clips OR WEDGES; Joints OR Jointing) with 2 patents, ranking #657 of 2,095 assignees active in that subclass. Grants appear in 5 CPC subclasses total.

USPTO PatentsView assignee record - 5 granted patents across 5 technology areas, recorded in grant years 2016–2021. 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: F16B (Devices FOR Fastening OR Securing Constructional Elements OR Machine Parts Together, e.g. Nails, Bolts, Circlips, Clamps, Clips OR WEDGES; Joints OR Jointing).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, K&w ranks #48,252 of 49,997 tracked US assignees by granted-patent volume, with 5 patents across 5 technology areas.

#48,252
of 49,997 US assignees by volume: 6th percentile
by Innovation Score (19.3/100): 8.6
avg claims per patent: -75%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R48252 · Foreign Corporation #48,252 · 5 grants

GRANTS-MICRO · BOTTOM-DECILE · PHOTO-FINISH · CPC-NARROW · INNOV-LOW · CLAIMS-PAR · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-MICRO 5 grants
BOTTOM-DECILE #48,252/49,997
PHOTO-FINISH Jupiter Oxygen
CPC-NARROW F16B · 5 areas
INNOV-LOW 19.3/100
CLAIMS-PAR 8.6 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -75% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Jupiter Oxygen 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 K&w’s 19.3 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 (32%) Velocity 0.0 pts (0%) Breadth 7.9 pts (41%) Claim depth 5.2 pts (27%)

Qualcomm Incorporated · highest

85
K&W Tools · this assignee

19
3D Lighting… · lowest

7

What this shows K&w's Innovation Score is 19.3/100 (6th 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 K&w?

Each dot is one of K&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&w’s own 8.6 claims/patent is ABOVE the 4.8 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where K&w's grants concentrate

K&W Tools Co., Ltd. is a focused PatentsView assignee: 5 CPC subclasses with 40% of grants classified under F16B (Devices FOR Fastening OR Securing Constructional Elements OR Machine Parts Together, e.g. Nails, Bolts, Circlips, Clamps, Clips OR WEDGES; Joints OR Jointing). Peak complete grant year is 2016 (2 grants) versus a trough of 1 in 2017. By volume, K&w sits between Jupiter Oxygen Corporation and K. Hartwell Oy Ab.

Jupiter Oxygen

5
Just

5
K Fresh

5
K Laser Technology

5
K'nex Partnership…

5
K-lab

5
K Eklund Innovati…

5
K Hartwell Oy Ab

5
K&W Tools ◀

5

What this shows K&W holds 5 patents at rank #48,046, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near K&W

By rank, the assignees closest to #48,046 in granted patent volume.

Leaders in F16B (Devices FOR Fastening OR Securing Constructional Elements…)

Other assignees with the most granted patents in K&W's primary technology class.

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

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

19 6th percentile higher than 6% 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 · 2016–2021

Grants by year

Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.

View data table

K&W Tools Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	2	40.0%
2017	1	20.0%
2018	1	20.0%
2021	1	20.0%

Which technologies does K&W Tools Co., Ltd. patent most?

F16B - Devices FOR Fastening OR Securing Constructional Elements OR Machine Parts Together, e.g. Nails, Bolts, Circlips, Clamps, Clips OR WEDGES; Joints OR Jointing 2

B25G - Handles FOR Hand Implements 2

B23D - PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; Like Operations FOR Working Metal BY Removing Material, NOT Otherwise Provided FOR 2

B23B - TURNING; Boring 2

Y10T - Technical Subjects Covered BY Former US Classification 1

Top 5 of 5 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&W Tools Co., Ltd.'s patent record in context - here's where to go next.

K&W Tools Co., Ltd.'s lead technology class is F16B (Devices FOR Fastening OR Securing Constructional Elements OR Machine Parts Together, e.g. Nails, Bolts, Circlips, Clamps, Clips OR WEDGES; Joints OR Jointing), 40% of its portfolio - see every assignee active in that class. Explore F16B
Ranked #48,252 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare K&W Tools Co., Ltd. against Jupiter Oxygen Corporation, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 19.3/100 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.