PlainPatent
USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Dong-a Flexible Metal Tubes Co., Ltd

USPTO PatentsView assignee record - 5 granted patents across 2 technology areas, recorded in grant years 2016–2023. 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: F16L (PIPES; Joints OR Fittings FOR PIPES; Supports FOR Pipes, Cables OR Protective TUBING; Means FOR Thermal Insulation IN General).

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The verdict

According to USPTO PatentsView, Dong-a ranks #46,218 of 49,997 tracked US assignees by granted-patent volume, with 5 patents across 2 technology areas.

#46,218
of 49,997 US assignees by volume
Top 42%
by Innovation Score (38.0/100)
11.4
avg claims per patent
+50%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R46218 · Foreign Corporation #46,218 · 5 grants

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

  • GRANTS-MICRO 5 grants
  • BOTTOM-DECILE #46,218/49,997
  • PHOTO-FINISH Dolphin
  • CPC-NARROW F16L · 2 areas
  • INNOV-THIN 38.0/100
  • CLAIMS-PAR 11.4 claims/avg
  • TYPE-FRNCORP Foreign Corp
  • VEL-SURGE +50% vel
  • BOOK-FULL 10/10 fields

Nearest grant-volume peer: Dolphin Co., Ltd. (±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.

Innovation-score neighbourhood around Dong-a

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

score

What this shows Dong-a's Innovation Score is 38.0/100 (top 42% 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

Where Dong-a's grants concentrate

Dong-a Flexible Metal Tubes Co., Ltd is a focused PatentsView assignee: 2 CPC subclasses with 80% of grants classified under F16L (PIPES; Joints OR Fittings FOR PIPES; Supports FOR Pipes, Cables OR Protective TUBING; Means FOR Thermal Insulation IN General). Peak complete grant year is 2023 (2 grants) versus a trough of 1 in 2016. By volume, Dong-a sits between Dolphin Co., Ltd. and Dongguan City Minleon Electronics Co., Ltd..

Dong-a's three-year grant acceleration

Dong-a Flexible Metal Tubes 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.

Who files at Dong-a's volume?

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

patents

What this shows Dong-a holds 5 patents at rank #46,120, 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 Dong-a

By rank, the assignees closest to #46,120 in granted patent volume.

Leaders in F16L (Pipes)

Other assignees with the most granted patents in Dong-a's primary technology class.

Dong-a's Innovation Score vs. every tracked assignee

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

38 Top 42% higher than 58% 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

0.511.522.5 2016201720222023 2
USPTO utility patent grants by year · 2016–2023

Grants by year

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

View data table
Dong-a Flexible Metal Tubes Co., Ltd patent grants by year, 2015–2025
Year Patents Granted Share of Period
2016 1 20.0%
2017 1 20.0%
2022 1 20.0%
2023 2 40.0%

Which technologies does Dong-a Flexible Metal Tubes Co., Ltd patent most?

Top 2 of 2 technology areas

Where it ranks

Overall rank by patents

#46,218

of 49,997 tracked assignees

Innovation Score

38.0 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

Dong-a Flexible Metal Tubes Co., Ltd's patent record in context - here's where to go next.

  • Dong-a Flexible Metal Tubes Co., Ltd's lead technology class is F16L (PIPES; Joints OR Fittings FOR PIPES; Supports FOR Pipes, Cables OR Protective TUBING; Means FOR Thermal Insulation IN General), 80% of its portfolio - see every assignee active in that class. Explore F16L
  • Ranked #46,218 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
  • Compare Dong-a Flexible Metal Tubes Co., Ltd against Dolphin Co., Ltd., an assignee filing at a similar volume. Compare portfolios
  • Innovation Score of 38.0/100 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.