PlainPatent
USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Daewoo Engineering & Construction Co., Ltd

USPTO PatentsView assignee record - 9 granted patents across 7 technology areas, recorded in grant years 2016–2022. 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: C10L (Fuels NOT Otherwise Provided FOR; Natural GAS; Synthetic Natural GAS Obtained BY Processes NOT Covered BY Subclasses C10g OR C10K; Liquified Petroleum GAS; USE OF Additives TO Fuels OR FIRES; Fire-lig).

RSS updates for this company
Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Daewoo ranks #28,527 of 49,997 tracked US assignees by granted-patent volume, with 9 patents across 7 technology areas.

#28,527
of 49,997 US assignees by volume
21st percentile
by Innovation Score (26.6/100)
10.0
avg claims per patent
-87%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R28527 · Foreign Corporation #28,527 · 9 grants

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

  • GRANTS-MICRO 9 grants
  • MID-PACK #28,527/49,997
  • PHOTO-FINISH C° Change Surgical
  • CPC-NARROW C10L · 7 areas
  • INNOV-THIN 26.6/100
  • CLAIMS-PAR 10.0 claims/avg
  • TYPE-FRNCORP Foreign Corp
  • VEL-DROP -87% vel
  • BOOK-FULL 10/10 fields

Nearest grant-volume peer: C° Change Surgical 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 Daewoo’s 26.6 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 Daewoo

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

score

What this shows Daewoo's Innovation Score is 26.6/100 (21st 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 Daewoo?

Each dot is one of Daewoo’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). Daewoo’s own 10.0 claims/patent is at or below the 15.8 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

Daewoo 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 8.98.999.1 510152025 Granted patents (volume) Avg claims / patent Cyclacel Limited - 9, 14.11CyclacelCytonics Corporation - 9, 18.56CytonicsC° Change Surgical LLC - 9, 15.44C° Change SurgicalD2iQ, Inc. - 9, 16.78D2iqDainippon Screen MFG. Co., Ltd. - 9, 15.78Dainippon Screen…Dairymaster - 9, 21.56DairymasterDAP Products, Inc. - 9, 19.11DAP ProductsDatt Life Sciences Private Limited - 9, 13.33Datt Life Science…Daewoo Engineering & Construction Co., Ltd - 9, 10Daewoo Engineerin…
Daewoo vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView.

Where Daewoo's grants concentrate

Daewoo Engineering & Construction Co., Ltd is a focused PatentsView assignee: 7 CPC subclasses with 55.6% of grants classified under C10L (Fuels NOT Otherwise Provided FOR; Natural GAS; Synthetic Natural GAS Obtained BY Processes NOT Covered BY Subclasses C10g OR C10K; Liquified Petroleum GAS; USE OF Additives TO Fuels OR FIRES; Fire-lig). Peak complete grant year is 2016 (3 grants) versus a trough of 1 in 2018. By volume, Daewoo sits between Cyclacel Limited and Datt Life Sciences Private Limited.

Daewoo's three-year grant acceleration

Daewoo Engineering & Construction Co., Ltd shows 1 grants in 2022–2024 against only 2 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 Daewoo's volume?

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

patents

What this shows Daewoo holds 9 patents at rank #28,522, 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 Daewoo

By rank, the assignees closest to #28,522 in granted patent volume.

Leaders in C10L (Fuels)

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

Daewoo's Innovation Score vs. every tracked assignee

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

27 21st percentile higher than 21% 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

0.511.522.533.5 20162017201820192022 1
USPTO utility patent grants by year · 2016–2022

Grants by year

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

View data table
Daewoo Engineering & Construction Co., Ltd patent grants by year, 2015–2025
Year Patents Granted Share of Period
2016 3 33.3%
2017 2 22.2%
2018 1 11.1%
2019 2 22.2%
2022 1 11.1%

Which technologies does Daewoo Engineering & Construction 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

Daewoo Engineering & Construction Co., Ltd's patent record in context - here's where to go next.

  • Daewoo Engineering & Construction Co., Ltd's lead technology class is C10L (Fuels NOT Otherwise Provided FOR; Natural GAS; Synthetic Natural GAS Obtained BY Processes NOT Covered BY Subclasses C10g OR C10K; Liquified Petroleum GAS; USE OF Additives TO Fuels OR FIRES; Fire-lig), 55.6% of its portfolio - see every assignee active in that class. Explore C10L
  • Ranked #28,527 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
  • Compare Daewoo Engineering & Construction Co., Ltd against Cyclacel Limited, an assignee filing at a similar volume. Compare portfolios
  • Innovation Score of 26.6/100 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.