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

According to USPTO PatentsView (2015–2025 granted utility patents), CTK Co., Ltd. ranks #15,932 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 CTK Co., Ltd. hold?

CTK Co., Ltd. holds 18 US utility patents granted between 2016 and 2025, spanning 5 technology areas.

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

CTK Co., Ltd. has an Innovation Score of 25.2 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%).

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

CTK Co., Ltd.'s recent grant velocity is -11% 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 CTK Co., Ltd.'s patents?

CTK Co., Ltd.'s patents average 8.2 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 CTK 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

CTK Co., Ltd.

Q: What technology areas does CTK Co., Ltd. focus on?

CTK Co., Ltd.'s top technology area is A45D (Hairdressing OR Shaving Equipment ; Equipment FOR Cosmetics OR Cosmetic Treatments, e.g. FOR Manicuring OR Pedicuring) with 16 patents, ranking #43 of 429 assignees active in that subclass. Grants appear in 5 CPC subclasses total.

USPTO PatentsView assignee record - 18 granted patents across 5 technology areas, recorded in grant years 2016–2025. 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: A45D (Hairdressing OR Shaving Equipment ; Equipment FOR Cosmetics OR Cosmetic Treatments, e.g. FOR Manicuring OR Pedicuring).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, CTK ranks #15,932 of 49,997 tracked US assignees by granted-patent volume, with 18 patents across 5 technology areas.

#15,932
of 49,997 US assignees by volume: 17th percentile
by Innovation Score (25.2/100): 8.2
avg claims per patent: -11%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R15932 · Foreign Corporation #15,932 · 18 grants

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

GRANTS-MICRO 18 grants
MID-PACK #15,932/49,997
PHOTO-FINISH Controlrad Systems
CPC-NARROW A45D · 5 areas
INNOV-THIN 25.2/100
CLAIMS-PAR 8.2 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DOWN -11% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Controlrad Systems, Inc. (±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 CTK’s 25.2 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 10.2 pts (40%) Velocity 2.2 pts (9%) Breadth 7.9 pts (31%) Claim depth 4.9 pts (19%)

Qualcomm Incorporated · highest

85
CTK · this assignee

25
3D Lighting… · lowest

7

What this shows CTK's Innovation Score is 25.2/100 (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 CTK?

Each dot is one of CTK’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). CTK’s own 8.2 claims/patent is at or below the 15.2 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where CTK's grants concentrate

CTK Co., Ltd. is a focused PatentsView assignee: 5 CPC subclasses with 88.9% of grants classified under A45D (Hairdressing OR Shaving Equipment ; Equipment FOR Cosmetics OR Cosmetic Treatments, e.g. FOR Manicuring OR Pedicuring). Peak complete grant year is 2019 (4 grants) versus a trough of 1 in 2016. By volume, CTK sits between Controlrad Systems, Inc. and CV6 Therapeutics (NI) Limited.

CTK's three-year grant acceleration

CTK Co., Ltd. shows 3 grants in 2022–2024 against only 9 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.

Controlrad Systems

18
Cordelia Lighting

18
Crescendo Biologi…

18
Cryptzone North A…

18
Cubtek

18
CUE

18
Curlin Medical

18
CV6 Therapeutics…

18
CTK ◀

18

What this shows CTK holds 18 patents at rank #15,906, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near CTK

By rank, the assignees closest to #15,906 in granted patent volume.

Leaders in A45D (Hairdressing OR Shaving Equipment)

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

CTK'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 · 2016–2025

Grants by year

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

View data table

CTK Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	1	5.6%
2017	2	11.1%
2018	2	11.1%
2019	4	22.2%
2020	2	11.1%
2021	3	16.7%
2022	1	5.6%
2023	1	5.6%
2024	1	5.6%
2025partial year	1	5.6%

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

A45D - Hairdressing OR Shaving Equipment ; Equipment FOR Cosmetics OR Cosmetic Treatments, e.g. FOR Manicuring OR Pedicuring 16

B65D - Containers FOR Storage OR Transport OF Articles OR Materials, e.g. Bags, Barrels, Bottles, Boxes, Cans, Cartons, Crates, Drums, Jars, Tanks, Hoppers, Forwarding CONTAINERS; Accessories, Closures, OR Fittings THEREFOR; Packaging ELEMENTS; Packages 5

A46B - Brushes 3

B65B - Machines, Apparatus OR Devices FOR, OR Methods OF, Packaging Articles OR MATERIALS; Unpacking 1

A47G - Household OR Table Equipment 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

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

CTK Co., Ltd.'s lead technology class is A45D (Hairdressing OR Shaving Equipment ; Equipment FOR Cosmetics OR Cosmetic Treatments, e.g. FOR Manicuring OR Pedicuring), 88.9% of its portfolio - see every assignee active in that class. Explore A45D
Ranked #15,932 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare CTK Co., Ltd. against Controlrad Systems, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 25.2/100 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.