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

According to USPTO PatentsView (2015–2025 granted utility patents), FSK Co., Ltd. ranks #46,899 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 FSK Co., Ltd. hold?

FSK Co., Ltd. holds 5 US utility patents granted between 2022 and 2025, spanning 10 technology areas.

What is FSK Co., Ltd.'s Innovation Score?

FSK Co., Ltd. has an Innovation Score of 40.1 out of 100 (top 36% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does FSK Co., Ltd. focus on?

FSK Co., Ltd.'s top technology area is A61B (DIAGNOSIS; SURGERY; Identification) with 4 patents, ranking #3,645 of 7,127 assignees active in that subclass. Grants appear in 10 CPC subclasses total.

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

Insufficient historical data is available to calculate a velocity trend for FSK Co., Ltd..

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

FSK Co., Ltd.'s patents average 4.6 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 FSK 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

FSK Co., Ltd.

USPTO PatentsView assignee record - 5 granted patents across 10 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: A61B (DIAGNOSIS; SURGERY; Identification).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, FSK ranks #46,899 of 49,997 tracked US assignees by granted-patent volume, with 5 patents across 10 technology areas.

#46,899
of 49,997 US assignees by volume: Top 36%
by Innovation Score (40.1/100): 4.6
avg claims per patent

USPTO PatentsView assignee plate

Corpus R46899 · Foreign Corporation #46,899 · 5 grants

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

GRANTS-MICRO 5 grants
BOTTOM-DECILE #46,899/49,997
PHOTO-FINISH Frosty Cold
CPC-FOCUS A61B · 10 areas
INNOV-PAR 40.1/100
CLAIMS-SPARSE 4.6 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2022–2025 · 4y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Frosty Cold, LLC (±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 FSK’s 40.1 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 (15%) Velocity 20.0 pts (50%) Breadth 11.2 pts (28%) Claim depth 2.8 pts (7%)

Qualcomm Incorporated · highest

85
FSK · this assignee

40
3D Lighting… · lowest

7

What this shows FSK's Innovation Score is 40.1/100 (top 36% 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 FSK?

Each dot is one of FSK’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). FSK’s own 4.6 claims/patent is at or below the 10.8 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where FSK's grants concentrate

FSK Co., Ltd. is a focused PatentsView assignee: 10 CPC subclasses with 80% of grants classified under A61B (DIAGNOSIS; SURGERY; Identification). Peak complete grant year is 2024 (2 grants) versus a trough of 1 in 2022. By volume, FSK sits between Frosty Cold, LLC and Fuding Precision Industry (ZHENGZHOU) Co., Ltd..

FSK's three-year grant acceleration

FSK Co., Ltd. shows 3 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.

Frosty Cold

5
Fruitshop Interna…

5
FS Giiker Technol…

5
FSI North America

5
FSP Holdings Pty

5
FSR

5
FT Synthetics

5
Fuding Precision…

5
FSK ◀

5

What this shows FSK holds 5 patents at rank #46,788, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near FSK

By rank, the assignees closest to #46,788 in granted patent volume.

Leaders in A61B (Diagnosis)

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

FSK's Innovation Score vs. every tracked assignee

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

40 Top 36% higher than 64% 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

FSK Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2022	1	20.0%
2024	2	40.0%
2025partial year	2	40.0%

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

A61B - DIAGNOSIS; SURGERY; Identification 4

H05G - X-ray Technique 1

H01J - Electric Discharge Tubes OR Discharge Lamps 1

A23L - Foods, Foodstuffs OR Non-alcoholic Beverages, NOT Otherwise Provided FOR; Preparation OR Treatment Thereof 1

C08L - Compositions OF Macromolecular Compounds 1

C08B - POLYSACCHARIDES; Derivatives Thereof 1

F16M - Frames, Casings OR Beds OF Engines, Machines OR Apparatus, NOT Specific TO Engines, Machines OR Apparatus Provided FOR ELSEWHERE; STANDS; Supports 1

G03B - Apparatus OR Arrangements FOR Taking Photographs OR FOR Projecting OR Viewing THEM; Apparatus OR Arrangements Employing Analogous Techniques Using Waves Other Than Optical WAVES; Accessories Therefor 1

H01H - Electric SWITCHES; RELAYS; SELECTORS; Emergency Protective Devices 1

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 1

Top 10 of 10 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

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

FSK Co., Ltd.'s lead technology class is A61B (DIAGNOSIS; SURGERY; Identification), 80% of its portfolio - see every assignee active in that class. Explore A61B
Ranked #46,899 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare FSK Co., Ltd. against Frosty Cold, LLC, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 40.1/100 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.