Where does Chung Chwan Enterprise Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Chung Chwan Enterprise Co., Ltd. ranks #11,967 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 Chung Chwan Enterprise Co., Ltd. hold?

Chung Chwan Enterprise Co., Ltd. holds 25 US utility patents granted between 2015 and 2022, spanning 7 technology areas.

What is Chung Chwan Enterprise Co., Ltd.'s Innovation Score?

Chung Chwan Enterprise Co., Ltd. has an Innovation Score of 27.2 out of 100 (23rd percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Chung Chwan Enterprise Co., Ltd.'s patent grant rate increasing or decreasing?

Chung Chwan Enterprise 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 Chung Chwan Enterprise Co., Ltd.'s patents?

Chung Chwan Enterprise Co., Ltd.'s patents average 9.1 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 Chung Chwan Enterprise 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

Chung Chwan Enterprise Co., Ltd.

Q: What technology areas does Chung Chwan Enterprise Co., Ltd. focus on?

Chung Chwan Enterprise Co., Ltd.'s top technology area is A44B (Buttons, Pins, Buckles, Slide Fasteners, OR THE Like) with 18 patents. Grants appear in 7 CPC subclasses total.

USPTO PatentsView assignee record - 25 granted patents across 7 technology areas, recorded in grant years 2015–2022. 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: A44B (Buttons, Pins, Buckles, Slide Fasteners, OR THE Like).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Chung ranks #11,967 of 49,997 tracked US assignees by granted-patent volume, with 25 patents across 7 technology areas.

#11,967
of 49,997 US assignees by volume: 23rd percentile
by Innovation Score (27.2/100): 9.1
avg claims per patent: -75%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R11967 · Foreign Corporation #11,967 · 25 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-PAR · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-SMALL 25 grants
UPPER-Q #11,967/49,997
PHOTO-FINISH Cairdac
CPC-NARROW A44B · 7 areas
INNOV-THIN 27.2/100
CLAIMS-PAR 9.1 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -75% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Cairdac (±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.

Qualcomm Incorporated · highest

85
Brandenburger… · near

27
M & Q IP Leasing · near

27
Chung Chwan Enterprise · this assignee

27
Geopolymer Solutions · near

27
ZMC Metal Coating · near

27
3D Lighting… · lowest

7

What this shows Chung's Innovation Score is 27.2/100 (23rd 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.

Where Chung's grants concentrate

Chung Chwan Enterprise Co., Ltd. is a focused PatentsView assignee: 7 CPC subclasses with 72% of grants classified under A44B (Buttons, Pins, Buckles, Slide Fasteners, OR THE Like). Peak complete grant year is 2018 (9 grants) versus a trough of 1 in 2022. By volume, Chung sits between Cairdac and Columbia Aluminum Products, LLC.

Chung's three-year grant acceleration

Chung Chwan Enterprise Co., Ltd. shows 1 grants in 2022–2024 against only 6 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.

Cairdac

25
Capcom

25
Cellular Communic…

25
China Pharmaceuti…

25
Citizen Finedevice

25
Clear Imaging Res…

25
Clearwire IP Hold…

25
Columbia Aluminum…

25
Chung Chwan Enter… ◀

25

What this shows Chung holds 25 patents at rank #11,957, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Chung

By rank, the assignees closest to #11,957 in granted patent volume.

Leaders in A44B (Buttons)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Chung, neither rank-band nor same-CPC leaders (those blocks stay above).

Similar innovation score

Nearest assignees by Innovation Score (27 here).

Geopolymer Solutions, LLC 27 Brandenburger Patentverwertung GbR 27 M & Q IP Leasing, LLC 27 ZMC Metal Coating Inc. 27

Chung's Innovation Score vs. every tracked assignee

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

27 23rd percentile higher than 23% 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 · 2015–2022

Grants by year

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

View data table

Chung Chwan Enterprise Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	3	12.0%
2016	2	8.0%
2017	4	16.0%
2018	9	36.0%
2019	2	8.0%
2020	2	8.0%
2021	2	8.0%
2022	1	4.0%

Which technologies does Chung Chwan Enterprise Co., Ltd. patent most?

A44B - Buttons, Pins, Buckles, Slide Fasteners, OR THE Like 18

Y10T - Technical Subjects Covered BY Former US Classification 4

B22D - Casting OF METALS; Casting OF Other Substances BY THE Same Processes OR Devices 3

B21D - Working OR Processing OF Sheet Metal OR Metal Tubes, Rods OR Profiles Without Essentially Removing MATERIAL; Punching Metal 2

B65G - Transport OR Storage Devices, e.g. Conveyors FOR Loading OR Tipping, Shop Conveyor Systems OR Pneumatic Tube Conveyors 1

B29C - Shaping OR Joining OF PLASTICS; Shaping OF Material IN A Plastic State, NOT Otherwise Provided FOR; After-treatment OF THE Shaped Products, e.g. Repairing 1

F16B - Devices FOR Fastening OR Securing Constructional Elements OR Machine Parts Together, e.g. Nails, Bolts, Circlips, Clamps, Clips OR WEDGES; Joints OR Jointing 1

Top 7 of 7 technology areas

Where it ranks

Overall rank by patents

#11,967

of 49,997 tracked assignees

Innovation Score

27.2 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

What to do with this data

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

Chung Chwan Enterprise Co., Ltd.'s lead technology class is A44B (Buttons, Pins, Buckles, Slide Fasteners, OR THE Like), 72% of its portfolio - see every assignee active in that class. Explore A44B
Ranked #11,967 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Chung Chwan Enterprise Co., Ltd. against Cairdac, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 27.2/100 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.