PlainPatent
USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Chung Chwan Enterprise Co., Ltd.

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).

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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.

How Chung’s 27.2 Innovation Score adds up

The same four weighted components behind every Innovation Score on PlainPatent: portfolio volume, grant velocity, technology breadth, and claim depth.

Innovation-score neighbourhood around Chung

Lowest and highest poles plus nearest Innovation Score peers, not a full corpus board reprint.

score

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.

Source USPTO PatentsView, PlainPatent Innovation Score As of 2015–2025

Does more volume mean deeper claims for Chung?

Each dot is one of Chung’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). Chung’s own 9.1 claims/patent is at or below the 10.9 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

Chung vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView. 2×2 strategic matrix plotting 9 entities by Granted patents (volume) (X) and Avg claims / patent (Y), with a crosshair dividing the plot into four quadrants. Volume + depthSelective & thoroughVolume over depthLean filer 24.924.92525.1 0102030 Granted patents (volume) Avg claims / patent Cairdac - 25, 13.2CairdacCapcom Co., Ltd. - 25, 10.52CapcomCellular Communications Equipment LLC - 25, 19.24Cellular Communic…China Pharmaceutical University - 25, 7.04China Pharmaceuti…Citizen Finedevice Co., Ltd. - 25, 10.92Citizen FinedeviceClear Imaging Research, LLC. - 25, 24.04Clear Imaging Res…Clearwire IP Holdings L.L.C. - 25, 18.36Clearwire IP Hold…Columbia Aluminum Products, LLC - 25, 1Columbia Aluminum…Chung Chwan Enterprise Co., Ltd. - 25, 9.12Chung Chwan Enter…
Chung vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView.

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.

Who files at Chung's volume?

Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀

patents

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.

Source USPTO PatentsView, granted utility patents As of 2015–2025

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). In A44B (Buttons), Chung ranks #9 of 276 assignees by patent count in that subclass.

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

This assignee 0 100 every tracked assignee, bucketed by value

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

0246810 20152016201720182019202020212022 1
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?

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

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

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.